Satellite water quality data

Clearest beaches and surf spots

267 coastal spots ranked by underwater visibility. Satellite data from Copernicus Marine and NOAA VIIRS, updated daily.

Not bathing-water safety advice. Check official local notices before entering the water.

267 spots

#	Location	Country	Visibility ↓	Rating	Chlorophyll	Turbidity	SST
1	Jaws/Pe'ahi	United States	41.2m	Crystal clear	0.0 mg/m3	0.3 g/m3	27.3°C
2	Hookipa	United States	39.4m	Crystal clear	0.1 mg/m3	0.3 g/m3	27.0°C
3	Teahupo'o	French Polynesia	38.6m	Crystal clear	0.1 mg/m3	0.3 g/m3	25.7°C
4	Honolua Bay	United States	38.4m	Crystal clear	0.1 mg/m3	0.3 g/m3	26.9°C
5	Aganoa	Samoa	36.9m	Crystal clear	0.1 mg/m3	0.3 g/m3	27.4°C
6	Siargao/Cloud 9	Philippines	35.5m	Crystal clear	0.1 mg/m3	0.4 g/m3	30.5°C
7	Itacaré	Brazil	35.0m	Crystal clear	0.1 mg/m3	2.4 g/m3	27.0°C
8	Fernando de Noronha	Brazil	33.5m	Crystal clear	0.1 mg/m3	0.3 g/m3	27.2°C
9	Saint-Leu	Réunion	32.6m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.8°C
10	Tamarin Bay	Mauritius	30.6m	Crystal clear	0.1 mg/m3	14.9 g/m3	24.6°C
11	Mentawai Islands	Indonesia	30.3m	Crystal clear	0.1 mg/m3	0.4 g/m3	29.0°C
12	Miyazaki	Japan	29.9m	Crystal clear	0.1 mg/m3	0.4 g/m3	26.2°C
13	Tanegashima	Japan	29.8m	Crystal clear	0.1 mg/m3	0.3 g/m3	27.2°C
14	El Confital	Spain	29.7m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.5°C
15	Gran Canaria/El Confital	Spain	29.7m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.5°C
16	Baler	Philippines	28.6m	Crystal clear	0.1 mg/m3	0.3 g/m3	30.0°C
17	Tofo	Mozambique	28.3m	Crystal clear	0.1 mg/m3	0.2 g/m3	25.3°C
18	Playa Grande	Costa Rica	28.1m	Crystal clear	0.1 mg/m3	0.3 g/m3	30.2°C
19	Anakao	Madagascar	28.1m	Crystal clear	0.1 mg/m3	0.2 g/m3	25.1°C
20	Lanzarote/Famara	Spain	27.5m	Crystal clear	0.1 mg/m3	0.2 g/m3	23.7°C
21	Tenerife	Spain	26.9m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.6°C
22	Fuerteventura/Cotillo	Spain	26.8m	Crystal clear	0.1 mg/m3	0.7 g/m3	23.7°C
23	El Quemao	Spain	26.3m	Crystal clear	0.1 mg/m3	0.2 g/m3	23.8°C
24	Lanuza	Philippines	26.0m	Crystal clear	0.1 mg/m3	7.8 g/m3	30.2°C
25	La Santa	Spain	25.9m	Crystal clear	0.1 mg/m3	0.2 g/m3	23.7°C
26	Barra de la Cruz	Mexico	25.8m	Crystal clear	0.1 mg/m3	0.4 g/m3	30.1°C
27	Nias (Sorake)	Indonesia	25.5m	Crystal clear	0.1 mg/m3	0.4 g/m3	29.9°C
28	Bull Bay	Jamaica	25.4m	Crystal clear	0.1 mg/m3	4.3 g/m3	29.7°C
29	Arugam Bay	Sri Lanka	25.2m	Crystal clear	0.1 mg/m3	0.4 g/m3	29.7°C
30	Rhodes	Greece	25.2m	Crystal clear	0.1 mg/m3	0.3 g/m3	25.5°C
31	Oludeniz	Turkey	25.1m	Crystal clear	0.1 mg/m3	0.4 g/m3	25.6°C
32	Nosara	Costa Rica	25.0m	Crystal clear	0.1 mg/m3	0.4 g/m3	30.3°C
33	Thulusdhoo	Maldives	24.5m	Crystal clear	0.2 mg/m3	0.3 g/m3	29.8°C
34	Gracetown	Australia	24.3m	Crystal clear	0.2 mg/m3	0.4 g/m3	18.9°C
35	Laniakea	United States	23.8m	Crystal clear	0.2 mg/m3	5.1 g/m3	26.9°C
36	Pipeline	United States	23.8m	Crystal clear	0.2 mg/m3	5.1 g/m3	26.6°C
37	Sunset Beach	United States	23.8m	Crystal clear	0.2 mg/m3	5.1 g/m3	26.9°C
38	Waimea Bay	United States	23.8m	Crystal clear	0.2 mg/m3	5.1 g/m3	26.9°C
39	Margaret River	Australia	23.8m	Crystal clear	0.2 mg/m3	4.4 g/m3	18.7°C
40	North Malé Atoll	Maldives	23.6m	Crystal clear	0.2 mg/m3	0.7 g/m3	29.8°C
41	Simeulue	Indonesia	23.6m	Crystal clear	0.2 mg/m3	0.3 g/m3	29.6°C
42	Noosa	Australia	23.4m	Crystal clear	0.2 mg/m3	0.3 g/m3	22.4°C
43	Bathsheba	Barbados	22.7m	Crystal clear	0.2 mg/m3	0.2 g/m3	29.1°C
44	Popoyo	Nicaragua	22.6m	Crystal clear	0.2 mg/m3	0.7 g/m3	30.1°C
45	Desert Point	Indonesia	22.3m	Crystal clear	0.2 mg/m3	0.3 g/m3	27.3°C
46	Vliho Bay	Greece	22.2m	Crystal clear	0.2 mg/m3	0.4 g/m3	24.2°C
47	Kuta Lombok	Indonesia	22.1m	Crystal clear	0.2 mg/m3	0.3 g/m3	27.4°C
48	Cloudbreak	Fiji	21.9m	Crystal clear	0.2 mg/m3	5.2 g/m3	25.6°C
49	Restaurants (Namotu)	Fiji	21.9m	Crystal clear	0.2 mg/m3	5.2 g/m3	25.6°C
50	San José del Cabo	Mexico	21.4m	Crystal clear	0.2 mg/m3	0.3 g/m3	31.5°C
51	Krui	Indonesia	21.3m	Crystal clear	0.2 mg/m3	0.6 g/m3	28.0°C
52	Getxo	Spain	21.1m	Crystal clear	0.2 mg/m3	0.3 g/m3	19.9°C
53	Sopelana	Spain	21.1m	Crystal clear	0.2 mg/m3	0.3 g/m3	20.3°C
54	Ponta Preta	Cape Verde	20.9m	Crystal clear	0.2 mg/m3	0.3 g/m3	26.7°C
55	Keramas	Indonesia	20.9m	Crystal clear	0.2 mg/m3	0.3 g/m3	27.4°C
56	Canggu	Indonesia	20.9m	Crystal clear	0.2 mg/m3	0.3 g/m3	27.4°C
57	Niijima	Japan	20.2m	Crystal clear	0.2 mg/m3	0.3 g/m3	25.1°C
58	Pascuales	Mexico	20.2m	Crystal clear	0.2 mg/m3	2.3 g/m3	30.5°C
59	Praia da Pipa	Brazil	20.2m	Crystal clear	0.2 mg/m3	0.7 g/m3	27.6°C
60	Cimaja	Indonesia	19.8m	Crystal clear	0.2 mg/m3	1.0 g/m3	26.8°C
61	Bingin	Indonesia	19.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	26.6°C
62	Padang Padang	Indonesia	19.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	27.1°C
63	Balangan	Indonesia	19.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	26.6°C
64	Uluwatu	Indonesia	19.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	26.6°C
65	Merewether	Australia	19.1m	Crystal clear	0.2 mg/m3	0.2 g/m3	19.5°C
66	Hoddevik	Norway	18.7m	Crystal clear	0.3 mg/m3	0.3 g/m3	12.7°C
67	Boracay	Philippines	18.6m	Crystal clear	0.3 mg/m3	0.3 g/m3	29.9°C
68	Trestles	United States	18.4m	Crystal clear	0.3 mg/m3	0.4 g/m3	22.8°C
69	Montañita	Ecuador	18.4m	Crystal clear	0.3 mg/m3	0.5 g/m3	26.9°C
70	El Sunzal	El Salvador	18.2m	Crystal clear	0.3 mg/m3	0.4 g/m3	30.0°C
71	El Tunco	El Salvador	17.9m	Crystal clear	0.3 mg/m3	0.4 g/m3	30.0°C
72	Deba	Spain	17.3m	Crystal clear	0.3 mg/m3	0.3 g/m3	20.6°C
73	Nihiwatu	Indonesia	17.2m	Crystal clear	0.3 mg/m3	0.4 g/m3	26.8°C
74	Rincón	Puerto Rico	17.2m	Crystal clear	0.3 mg/m3	0.4 g/m3	29.8°C
75	Mundaka	Spain	17.2m	Crystal clear	0.3 mg/m3	0.3 g/m3	20.0°C
76	Tarifa	Spain	17.1m	Crystal clear	0.3 mg/m3	0.3 g/m3	19.9°C
77	Weligama	Sri Lanka	17.0m	Crystal clear	0.3 mg/m3	0.6 g/m3	29.6°C
78	Le Moule	Guadeloupe	16.7m	Crystal clear	0.3 mg/m3	0.3 g/m3	29.3°C
79	Santa Teresa	Costa Rica	16.6m	Crystal clear	0.3 mg/m3	0.3 g/m3	30.3°C
80	San Sebastián	Spain	16.6m	Crystal clear	0.3 mg/m3	0.3 g/m3	20.9°C
81	Zarautz	Spain	16.6m	Crystal clear	0.3 mg/m3	0.3 g/m3	20.4°C
82	Lennox Head	Australia	16.3m	Crystal clear	0.3 mg/m3	0.3 g/m3	20.3°C
83	Hiriketiya	Sri Lanka	16.2m	Crystal clear	0.3 mg/m3	0.5 g/m3	29.6°C
84	Phillip Island	Australia	16.1m	Crystal clear	0.3 mg/m3	0.5 g/m3	14.7°C
85	Jeju Jungmun	South Korea	15.6m	Crystal clear	0.4 mg/m3	0.4 g/m3	24.8°C
86	Arrifana	Portugal	15.2m	Crystal clear	0.4 mg/m3	0.7 g/m3	21.9°C
87	Taitung	Taiwan	15.0m	Crystal clear	0.4 mg/m3	1.8 g/m3	28.6°C
88	Medewi	Indonesia	14.8m	Good	0.4 mg/m3	1.2 g/m3	26.3°C
89	Anglet	France	14.7m	Good	0.4 mg/m3	0.4 g/m3	20.0°C
90	Biarritz	France	14.7m	Good	0.4 mg/m3	0.4 g/m3	20.6°C
91	Guéthary	France	14.7m	Good	0.4 mg/m3	0.4 g/m3	20.6°C
92	Playa Hermosa	Costa Rica	14.5m	Good	0.4 mg/m3	0.5 g/m3	30.1°C
93	Burleigh Heads	Australia	14.1m	Good	0.4 mg/m3	0.3 g/m3	21.2°C
94	Kirra	Australia	14.1m	Good	0.4 mg/m3	0.3 g/m3	21.3°C
95	Snapper Rocks	Australia	14.1m	Good	0.4 mg/m3	0.3 g/m3	21.3°C
96	Huntington Beach	United States	14.1m	Good	0.4 mg/m3	0.5 g/m3	23.0°C
97	The Wedge	United States	14.1m	Good	0.4 mg/m3	0.5 g/m3	22.9°C
98	Santa Catalina	Panama	13.8m	Good	0.5 mg/m3	0.7 g/m3	30.0°C
99	Avoca Beach	Australia	13.7m	Good	0.5 mg/m3	0.3 g/m3	19.5°C
100	Cabarete	Dominican Republic	13.5m	Good	0.5 mg/m3	1.1 g/m3	29.7°C
101	Santa Cruz	United States	13.5m	Good	0.5 mg/m3	0.6 g/m3	17.3°C
102	Maroubra	Australia	13.5m	Good	0.5 mg/m3	0.2 g/m3	20.6°C
103	Reykjanes Peninsula	Iceland	13.3m	Good	0.5 mg/m3	0.7 g/m3	9.7°C
104	Scarborough Beach	Australia	13.1m	Good	0.5 mg/m3	2.0 g/m3	19.2°C
105	Izu Peninsula	Japan	13.1m	Good	0.5 mg/m3	0.4 g/m3	24.9°C
106	Somo	Spain	12.8m	Good	0.5 mg/m3	0.3 g/m3	19.1°C
107	Inch Beach	Ireland	12.6m	Good	0.5 mg/m3	0.5 g/m3	14.7°C
108	Varkala	India	12.5m	Good	0.5 mg/m3	3.4 g/m3	29.3°C
109	Shipwreck Bay	New Zealand	12.1m	Good	0.6 mg/m3	0.8 g/m3	16.1°C
110	Gwithian	United Kingdom	12.1m	Good	0.6 mg/m3	0.7 g/m3	15.9°C
111	Porthmeor	United Kingdom	12.1m	Good	0.6 mg/m3	0.7 g/m3	16.2°C
112	Praa Sands	United Kingdom	12.1m	Good	0.6 mg/m3	0.7 g/m3	15.9°C
113	Lacanau	France	12.1m	Good	0.6 mg/m3	0.3 g/m3	18.9°C
114	Harlyn Bay	United Kingdom	11.7m	Good	0.6 mg/m3	0.3 g/m3	16.6°C
115	Polzeath	United Kingdom	11.7m	Good	0.6 mg/m3	0.3 g/m3	16.6°C
116	Angourie	Australia	11.6m	Good	0.6 mg/m3	0.5 g/m3	20.4°C
117	Blacks Beach	United States	11.6m	Good	0.6 mg/m3	0.6 g/m3	22.6°C
118	La Jolla Cove	United States	11.6m	Good	0.6 mg/m3	0.6 g/m3	22.6°C
119	Bells Beach	Australia	11.4m	Good	0.6 mg/m3	0.9 g/m3	14.7°C
120	Torquay	Australia	11.4m	Good	0.6 mg/m3	0.9 g/m3	14.6°C
121	Jericoacoara	Brazil	11.3m	Good	0.6 mg/m3	12.6 g/m3	27.6°C
122	Sennen Cove	United Kingdom	11.2m	Good	0.6 mg/m3	0.5 g/m3	16.4°C
123	Tiree	United Kingdom	11.1m	Good	0.7 mg/m3	0.8 g/m3	14.2°C
124	El Gouna	Egypt	11.1m	Good	0.7 mg/m3	4.6 g/m3	26.9°C
125	Narrabeen	Australia	11.0m	Good	0.7 mg/m3	0.3 g/m3	20.6°C
126	Dee Why	Australia	11.0m	Good	0.7 mg/m3	0.3 g/m3	20.6°C
127	Dakar Yoff	Senegal	10.9m	Good	0.7 mg/m3	0.5 g/m3	28.9°C
128	Ngor/Ouakam	Senegal	10.9m	Good	0.7 mg/m3	0.5 g/m3	28.9°C
129	Sidi Kaouki	Morocco	10.7m	Good	0.7 mg/m3	7.0 g/m3	19.7°C
130	Essaouira	Morocco	10.7m	Good	0.7 mg/m3	7.0 g/m3	17.7°C
131	Cannon Beach	United States	10.7m	Good	0.7 mg/m3	2.4 g/m3	11.9°C
132	Saquarema	Brazil	10.7m	Good	0.7 mg/m3	1.6 g/m3	23.8°C
133	Ubatuba	Brazil	10.3m	Good	0.7 mg/m3	2.2 g/m3	23.5°C
134	Chapel Porth	United Kingdom	10.3m	Good	0.7 mg/m3	0.3 g/m3	16.4°C
135	Porthleven	United Kingdom	10.3m	Good	0.7 mg/m3	0.3 g/m3	16.1°C
136	Porthtowan	United Kingdom	10.3m	Good	0.7 mg/m3	0.3 g/m3	16.4°C
137	Puerto Escondido	Mexico	10.1m	Good	0.8 mg/m3	0.6 g/m3	29.7°C
138	Sayulita	Mexico	9.7m	Good	0.8 mg/m3	2.4 g/m3	31.2°C
139	Tramore	Ireland	9.7m	Good	0.8 mg/m3	0.6 g/m3	15.5°C
140	Maresias	Brazil	9.6m	Good	0.8 mg/m3	1.2 g/m3	22.7°C
141	G-Land	Indonesia	9.6m	Good	0.8 mg/m3	0.8 g/m3	26.1°C
142	Mui Ne	Vietnam	9.5m	Good	0.8 mg/m3	0.5 g/m3	29.2°C
143	Florianópolis	Brazil	9.5m	Good	0.8 mg/m3	1.9 g/m3	19.1°C
144	Pacific City	United States	9.3m	Good	0.9 mg/m3	0.9 g/m3	12.0°C
145	Kovalam	India	9.3m	Good	0.9 mg/m3	2.2 g/m3	29.1°C
146	Lagos	Portugal	9.2m	Good	0.9 mg/m3	0.5 g/m3	22.1°C
147	Bude Summerleaze	United Kingdom	9.1m	Good	0.9 mg/m3	1.2 g/m3	17.3°C
148	Widemouth Bay	United Kingdom	9.1m	Good	0.9 mg/m3	1.2 g/m3	17.3°C
149	Baisha Bay	Taiwan	9.1m	Good	0.9 mg/m3	6.8 g/m3	25.2°C
150	Bocas del Toro	Panama	9.0m	Good	0.9 mg/m3	0.8 g/m3	30.5°C
151	El Palmar	Spain	9.0m	Good	0.9 mg/m3	0.8 g/m3	21.5°C
152	Easkey	Ireland	8.7m	Good	1.0 mg/m3	0.5 g/m3	14.2°C
153	Brimms Ness	United Kingdom	8.7m	Good	1.0 mg/m3	0.9 g/m3	12.9°C
154	Dunnet Bay	United Kingdom	8.7m	Good	1.0 mg/m3	0.9 g/m3	12.8°C
155	Thurso East	United Kingdom	8.7m	Good	1.0 mg/m3	0.9 g/m3	12.6°C
156	Sebastian Inlet	United States	8.6m	Good	1.0 mg/m3	2.7 g/m3	28.6°C
157	Durban Bay of Plenty	South Africa	8.3m	Good	1.0 mg/m3	0.4 g/m3	22.2°C
158	Bantham	United Kingdom	8.2m	Good	1.0 mg/m3	1.3 g/m3	16.9°C
159	Bigbury-on-Sea	United Kingdom	8.2m	Good	1.0 mg/m3	1.3 g/m3	16.9°C
160	Strandhill	Ireland	8.1m	Good	1.1 mg/m3	0.6 g/m3	14.0°C
161	Machrihanish	United Kingdom	7.9m	Moderate	1.1 mg/m3	1.3 g/m3	14.4°C
162	Constantine Bay	United Kingdom	7.7m	Moderate	1.2 mg/m3	0.8 g/m3	16.6°C
163	Crantock	United Kingdom	7.7m	Moderate	1.2 mg/m3	0.8 g/m3	16.7°C
164	Lusty Glaze	United Kingdom	7.7m	Moderate	1.2 mg/m3	0.8 g/m3	16.7°C
165	Newquay/Fistral	United Kingdom	7.7m	Moderate	1.2 mg/m3	0.8 g/m3	16.7°C
166	Perranporth	United Kingdom	7.7m	Moderate	1.2 mg/m3	0.8 g/m3	16.7°C
167	Watergate Bay	United Kingdom	7.7m	Moderate	1.2 mg/m3	0.8 g/m3	16.6°C
168	Shonan	Japan	7.7m	Moderate	1.2 mg/m3	0.4 g/m3	24.4°C
169	Torres	Brazil	7.6m	Moderate	1.2 mg/m3	3.1 g/m3	17.4°C
170	Lakey Peak	Indonesia	7.4m	Moderate	1.2 mg/m3	1.3 g/m3	27.1°C
171	Praia do Amado	Portugal	7.2m	Moderate	1.3 mg/m3	0.7 g/m3	22.0°C
172	Sagres	Portugal	7.2m	Moderate	1.3 mg/m3	0.7 g/m3	21.9°C
173	Mount Maunganui	New Zealand	7.2m	Moderate	1.3 mg/m3	2.9 g/m3	16.5°C
174	Imsouane	Morocco	7.2m	Moderate	1.3 mg/m3	1.0 g/m3	19.5°C
175	Rincon	United States	7.0m	Moderate	1.4 mg/m3	1.3 g/m3	21.8°C
176	New Smyrna Beach	United States	7.0m	Moderate	1.4 mg/m3	2.7 g/m3	27.5°C
177	Pavones	Costa Rica	6.9m	Moderate	1.4 mg/m3	3.0 g/m3	30.3°C
178	Newgale	United Kingdom	6.9m	Moderate	1.4 mg/m3	4.1 g/m3	16.7°C
179	Whitesands Bay	United Kingdom	6.9m	Moderate	1.4 mg/m3	4.1 g/m3	16.4°C
180	Freshwater West	United Kingdom	6.8m	Moderate	1.4 mg/m3	3.2 g/m3	16.7°C
181	Eoropie	United Kingdom	6.8m	Moderate	1.4 mg/m3	1.2 g/m3	12.8°C
182	North Stradbroke Island	Australia	6.8m	Moderate	1.4 mg/m3	1.6 g/m3	22.2°C
183	Troncones	Mexico	6.7m	Moderate	1.4 mg/m3	9.2 g/m3	29.9°C
184	Salinas	Spain	6.7m	Moderate	1.4 mg/m3	0.4 g/m3	17.1°C
185	Cayton Bay	United Kingdom	6.7m	Moderate	1.4 mg/m3	4.0 g/m3	14.7°C
186	Scarborough	United Kingdom	6.7m	Moderate	1.4 mg/m3	4.0 g/m3	14.4°C
187	Fraserburgh	United Kingdom	6.6m	Moderate	1.5 mg/m3	0.5 g/m3	12.9°C
188	Pichilemu	Chile	6.5m	Moderate	1.5 mg/m3	0.4 g/m3	15.1°C
189	Mavericks	United States	6.3m	Moderate	1.6 mg/m3	0.8 g/m3	15.6°C
190	Sandycove	Ireland	6.3m	Moderate	1.6 mg/m3	3.8 g/m3	14.8°C
191	Pantín	Spain	6.2m	Moderate	1.6 mg/m3	0.4 g/m3	14.7°C
192	Kimmeridge Bay	United Kingdom	6.2m	Moderate	1.6 mg/m3	2.3 g/m3	18.3°C
193	Capbreton	France	6.1m	Moderate	1.6 mg/m3	1.9 g/m3	20.2°C
194	La Gravière	France	6.1m	Moderate	1.6 mg/m3	1.9 g/m3	19.9°C
195	Les Cavaliers	France	6.1m	Moderate	1.6 mg/m3	1.9 g/m3	20.2°C
196	Hossegor	France	6.1m	Moderate	1.6 mg/m3	1.9 g/m3	19.9°C
197	Seignosse	France	6.1m	Moderate	1.6 mg/m3	1.9 g/m3	19.9°C
198	Piha	New Zealand	6.1m	Moderate	1.7 mg/m3	13.1 g/m3	16.1°C
199	Garopaba	Brazil	5.9m	Moderate	1.7 mg/m3	3.1 g/m3	18.7°C
200	Ericeira	Portugal	5.8m	Moderate	1.7 mg/m3	1.1 g/m3	17.9°C
201	Ribeira d'Ilhas	Portugal	5.8m	Moderate	1.7 mg/m3	1.1 g/m3	17.2°C
202	Bournemouth	United Kingdom	5.8m	Moderate	1.8 mg/m3	2.6 g/m3	18.0°C
203	Wrightsville Beach	United States	5.7m	Moderate	1.8 mg/m3	6.2 g/m3	24.6°C
204	Manorbier	United Kingdom	5.7m	Moderate	1.8 mg/m3	3.8 g/m3	17.3°C
205	Anchor Point	Morocco	5.7m	Moderate	1.8 mg/m3	2.0 g/m3	19.8°C
206	Taghazout	Morocco	5.7m	Moderate	1.8 mg/m3	2.0 g/m3	19.8°C
207	Cocoa Beach	United States	5.5m	Moderate	1.9 mg/m3	12.2 g/m3	29.0°C
208	Putsborough	United Kingdom	5.5m	Moderate	1.9 mg/m3	4.4 g/m3	17.2°C
209	Saunton Sands	United Kingdom	5.5m	Moderate	1.9 mg/m3	4.4 g/m3	17.2°C
210	Woolacombe	United Kingdom	5.5m	Moderate	1.9 mg/m3	4.4 g/m3	17.2°C
211	Croyde	United Kingdom	5.5m	Moderate	1.9 mg/m3	4.4 g/m3	17.2°C
212	Filey	United Kingdom	5.5m	Moderate	1.9 mg/m3	3.0 g/m3	14.5°C
213	Brighton	United Kingdom	5.4m	Moderate	1.9 mg/m3	2.6 g/m3	18.7°C
214	Bracklesham Bay	United Kingdom	5.4m	Moderate	2.0 mg/m3	3.5 g/m3	18.3°C
215	Sandsend	United Kingdom	5.3m	Moderate	2.0 mg/m3	2.0 g/m3	14.3°C
216	Runswick Bay	United Kingdom	5.3m	Moderate	2.0 mg/m3	2.0 g/m3	14.3°C
217	Santa Cruz	Portugal	5.1m	Moderate	2.2 mg/m3	0.5 g/m3	17.2°C
218	Punta de Mita	Mexico	4.9m	Moderate	2.2 mg/m3	3.9 g/m3	31.1°C
219	Matosinhos	Portugal	4.8m	Moderate	2.3 mg/m3	0.7 g/m3	15.5°C
220	Seaburn	United Kingdom	4.7m	Moderate	2.4 mg/m3	0.7 g/m3	13.7°C
221	Baleal	Portugal	4.7m	Moderate	2.4 mg/m3	0.8 g/m3	17.4°C
222	Nazaré	Portugal	4.7m	Moderate	2.4 mg/m3	0.8 g/m3	17.2°C
223	Peniche/Supertubos	Portugal	4.7m	Moderate	2.4 mg/m3	0.8 g/m3	17.4°C
224	Bamburgh	United Kingdom	4.5m	Moderate	2.6 mg/m3	2.3 g/m3	12.9°C
225	Dungeons	South Africa	4.3m	Moderate	2.7 mg/m3	0.4 g/m3	14.7°C
226	Kommetjie	South Africa	4.3m	Moderate	2.7 mg/m3	0.4 g/m3	14.7°C
227	Máncora	Peru	4.3m	Moderate	2.7 mg/m3	4.8 g/m3	27.7°C
228	Dover	United Kingdom	4.3m	Moderate	2.7 mg/m3	3.1 g/m3	18.0°C
229	Compton Bay	United Kingdom	4.3m	Moderate	2.8 mg/m3	4.2 g/m3	18.6°C
230	Jeffreys Bay	South Africa	4.2m	Moderate	2.8 mg/m3	0.4 g/m3	14.9°C
231	Llangennith	United Kingdom	4.1m	Moderate	2.9 mg/m3	5.6 g/m3	17.0°C
232	Razo	Spain	4.1m	Moderate	2.9 mg/m3	0.5 g/m3	15.0°C
233	Saltburn-by-the-Sea	United Kingdom	4.1m	Moderate	2.9 mg/m3	2.3 g/m3	13.8°C
234	Caswell Bay	United Kingdom	4.1m	Moderate	2.9 mg/m3	10.0 g/m3	17.4°C
235	Langland Bay	United Kingdom	4.1m	Moderate	2.9 mg/m3	10.0 g/m3	17.4°C
236	Lobitos	Peru	3.9m	Moderate	3.2 mg/m3	3.5 g/m3	25.5°C
237	La Union (San Juan)	Philippines	3.8m	Moderate	3.3 mg/m3	1.7 g/m3	30.9°C
238	Raglan	New Zealand	3.7m	Moderate	3.4 mg/m3	27.0 g/m3	15.6°C
239	Gordon's Bay	South Africa	3.7m	Moderate	3.4 mg/m3	0.7 g/m3	15.0°C
240	Huanchaco	Peru	3.6m	Moderate	3.5 mg/m3	0.6 g/m3	22.8°C
241	Dakhla	Morocco	3.5m	Moderate	3.6 mg/m3	2.9 g/m3	21.2°C
242	Bloubergstrand	South Africa	3.5m	Moderate	3.7 mg/m3	0.7 g/m3	13.6°C
243	Muizenberg	South Africa	3.3m	Moderate	4.0 mg/m3	0.6 g/m3	15.2°C
244	Rest Bay	United Kingdom	3.1m	Moderate	4.2 mg/m3	21.2 g/m3	17.2°C
245	Unstad	Norway	3.1m	Moderate	4.3 mg/m3	0.4 g/m3	10.5°C
246	Ichinomiya	Japan	3.0m	Moderate	4.5 mg/m3	1.7 g/m3	22.2°C
247	Tsurigasaki Beach	Japan	3.0m	Moderate	4.5 mg/m3	1.7 g/m3	22.2°C
248	Tynemouth	United Kingdom	3.0m	Reduced	4.6 mg/m3	2.6 g/m3	13.6°C
249	Joss Bay	United Kingdom	3.0m	Reduced	4.6 mg/m3	6.3 g/m3	18.2°C
250	Bundoran	Ireland	2.9m	Reduced	4.7 mg/m3	1.0 g/m3	13.8°C
251	Ocean Beach SF	United States	2.9m	Reduced	4.7 mg/m3	12.5 g/m3	18.2°C
252	Mullaghmore Head	Ireland	2.9m	Reduced	4.7 mg/m3	1.0 g/m3	14.1°C
253	Folly Beach	United States	2.9m	Reduced	4.8 mg/m3	5.3 g/m3	25.0°C
254	Chicama	Peru	2.8m	Reduced	5.0 mg/m3	2.0 g/m3	23.0°C
255	Elands Bay	South Africa	2.7m	Reduced	5.2 mg/m3	1.4 g/m3	13.7°C
256	Bolinas	United States	2.7m	Reduced	5.3 mg/m3	21.8 g/m3	19.2°C
257	La Torche	France	2.3m	Reduced	6.7 mg/m3	0.4 g/m3	17.1°C
258	Outer Banks	United States	2.1m	Reduced	7.8 mg/m3	4.1 g/m3	22.5°C
259	Tybee Island	United States	2.1m	Reduced	8.0 mg/m3	7.8 g/m3	25.4°C
260	Mirleft	Morocco	2.1m	Reduced	8.0 mg/m3	1.6 g/m3	21.4°C
261	Lahinch	Ireland	2.0m	Reduced	8.5 mg/m3	18.6 g/m3	14.5°C
262	Rockaway Beach	United States	1.7m	Reduced	12.2 mg/m3	1.0 g/m3	17.9°C
263	Leucate	France	1.5m	Reduced	14.9 mg/m3	3.2 g/m3	22.0°C
264	Praia do Guincho	Portugal	1.5m	Reduced	17.4 mg/m3	6.3 g/m3	19.0°C
265	Carcavelos	Portugal	1.5m	Reduced	17.4 mg/m3	6.3 g/m3	19.0°C
266	Costa da Caparica	Portugal	1.5m	Reduced	17.4 mg/m3	6.3 g/m3	19.0°C
267	Portrush	United Kingdom	1.5m	Reduced	17.7 mg/m3	3.8 g/m3	14.1°C

#8Fernando de Noronha

#15Gran Canaria/El Confital

#22Fuerteventura/Cotillo

#49Restaurants (Namotu)

#103Reykjanes Peninsula

#104Scarborough Beach

#157Durban Bay of Plenty

#182North Stradbroke Island

#203Wrightsville Beach

#223Peniche/Supertubos

#233Saltburn-by-the-Sea

#237La Union (San Juan)

#247Tsurigasaki Beach

#266Costa da Caparica

Satellite ocean colour data from Copernicus Marine and NOAA CoastWatch. Data from 11 October 2026

Frequently asked questions

What is Secchi depth?

Secchi depth measures underwater visibility in metres. Higher numbers mean clearer water. Anything above 15m is considered excellent; below 3m is poor. Our primary source (Copernicus Marine) provides Secchi depth directly from merged multi-satellite observations. The fallback source (NOAA VIIRS) derives it from Kd490 using the Preisendorfer relationship.

Where does the data come from?

Two satellite sources, used in priority order. Primary: Copernicus Marine Service (EU), which blends multiple satellites into a gap-free L4 product covering Secchi depth, chlorophyll, and suspended particulate matter at 4km resolution. Fallback: NOAA CoastWatch VIIRS sensor aboard Suomi-NPP for spots where Copernicus has coastal land masking.

What does chlorophyll indicate?

Chlorophyll-a concentration (mg/m3) is a proxy for phytoplankton density. Low values typically mean clear, nutrient-poor water. Elevated levels above 5 mg/m3 may indicate an algal bloom, which can reduce visibility and occasionally cause irritation.

What is SPM / turbidity?

Suspended Particulate Matter (g/m3) measures particles floating in the water column (sediment, runoff, organic matter). Higher values mean murkier water. Values above 10 g/m3 usually indicate recent storm activity or river runoff.

What is SST?

Sea Surface Temperature in degrees Celsius from the Copernicus OSTIA satellite analysis. This blends observations from multiple satellites into a daily global product at 0.05 degree resolution, giving reliable coverage for all coastal spots.

How often is the data updated?

The catalogue is split across six independently monitored daily runs. Copernicus L4 data typically lags by 1 to 2 days. NOAA VIIRS weekly composites update once per week. Both sources search a small area around each coastal point to find the nearest ocean pixel.

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