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	Teahupo'o	French Polynesia	39.0m	Crystal clear	0.1 mg/m3	0.3 g/m3	26.3°C
2	Saint-Leu	Réunion	36.0m	Crystal clear	0.1 mg/m3	0.3 g/m3	25.2°C
3	Tamarin Bay	Mauritius	34.6m	Crystal clear	0.1 mg/m3	14.9 g/m3	24.7°C
4	Fernando de Noronha	Brazil	33.5m	Crystal clear	0.1 mg/m3	0.3 g/m3	27.0°C
5	Laniakea	United States	33.5m	Crystal clear	0.1 mg/m3	5.1 g/m3	26.5°C
6	Pipeline	United States	33.5m	Crystal clear	0.1 mg/m3	5.1 g/m3	26.6°C
7	Sunset Beach	United States	33.5m	Crystal clear	0.1 mg/m3	5.1 g/m3	26.5°C
8	Waimea Bay	United States	33.5m	Crystal clear	0.1 mg/m3	5.1 g/m3	26.5°C
9	Jaws/Pe'ahi	United States	32.4m	Crystal clear	0.1 mg/m3	0.3 g/m3	26.7°C
10	Aganoa	Samoa	31.6m	Crystal clear	0.1 mg/m3	0.6 g/m3	27.6°C
11	Hookipa	United States	31.3m	Crystal clear	0.1 mg/m3	0.3 g/m3	26.5°C
12	Tanegashima	Japan	31.3m	Crystal clear	0.1 mg/m3	0.3 g/m3	26.8°C
13	Siargao/Cloud 9	Philippines	30.6m	Crystal clear	0.1 mg/m3	0.4 g/m3	30.1°C
14	Miyazaki	Japan	29.7m	Crystal clear	0.1 mg/m3	0.4 g/m3	25.9°C
15	Cloudbreak	Fiji	29.5m	Crystal clear	0.1 mg/m3	5.2 g/m3	25.5°C
16	Restaurants (Namotu)	Fiji	29.5m	Crystal clear	0.1 mg/m3	5.2 g/m3	25.5°C
17	Bathsheba	Barbados	28.9m	Crystal clear	0.1 mg/m3	0.2 g/m3	29.4°C
18	Praia da Pipa	Brazil	28.7m	Crystal clear	0.1 mg/m3	0.7 g/m3	28.0°C
19	Lanzarote/Famara	Spain	28.2m	Crystal clear	0.1 mg/m3	0.2 g/m3	23.2°C
20	El Confital	Spain	27.8m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.0°C
21	Gran Canaria/El Confital	Spain	27.8m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.0°C
22	Burleigh Heads	Australia	27.3m	Crystal clear	0.1 mg/m3	0.3 g/m3	21.9°C
23	Kirra	Australia	27.3m	Crystal clear	0.1 mg/m3	0.3 g/m3	21.8°C
24	Snapper Rocks	Australia	27.3m	Crystal clear	0.1 mg/m3	0.3 g/m3	21.8°C
25	Honolua Bay	United States	27.3m	Crystal clear	0.1 mg/m3	0.3 g/m3	26.8°C
26	El Sunzal	El Salvador	26.9m	Crystal clear	0.1 mg/m3	0.4 g/m3	30.1°C
27	Rhodes	Greece	26.8m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.3°C
28	El Quemao	Spain	26.6m	Crystal clear	0.1 mg/m3	0.2 g/m3	23.0°C
29	La Santa	Spain	26.6m	Crystal clear	0.1 mg/m3	0.2 g/m3	23.2°C
30	Tenerife	Spain	26.4m	Crystal clear	0.1 mg/m3	0.3 g/m3	24.4°C
31	Noosa	Australia	26.2m	Crystal clear	0.1 mg/m3	0.3 g/m3	22.4°C
32	Anakao	Madagascar	26.2m	Crystal clear	0.1 mg/m3	0.2 g/m3	27.2°C
33	Margaret River	Australia	26.1m	Crystal clear	0.1 mg/m3	0.4 g/m3	19.0°C
34	Gracetown	Australia	26.1m	Crystal clear	0.1 mg/m3	0.4 g/m3	19.0°C
35	Puerto Escondido	Mexico	26.0m	Crystal clear	0.1 mg/m3	0.6 g/m3	29.8°C
36	Lennox Head	Australia	25.8m	Crystal clear	0.1 mg/m3	0.3 g/m3	21.9°C
37	Mentawai Islands	Indonesia	25.7m	Crystal clear	0.1 mg/m3	0.4 g/m3	28.8°C
38	Bull Bay	Jamaica	25.6m	Crystal clear	0.1 mg/m3	0.3 g/m3	29.7°C
39	Nias (Sorake)	Indonesia	25.0m	Crystal clear	0.1 mg/m3	0.4 g/m3	29.6°C
40	Trestles	United States	24.3m	Crystal clear	0.2 mg/m3	0.4 g/m3	22.6°C
41	Simeulue	Indonesia	23.6m	Crystal clear	0.2 mg/m3	0.3 g/m3	30.0°C
42	Le Moule	Guadeloupe	23.6m	Crystal clear	0.2 mg/m3	0.3 g/m3	29.8°C
43	Fuerteventura/Cotillo	Spain	23.5m	Crystal clear	0.2 mg/m3	0.7 g/m3	23.2°C
44	El Tunco	El Salvador	23.3m	Crystal clear	0.2 mg/m3	0.4 g/m3	30.1°C
45	Baler	Philippines	22.6m	Crystal clear	0.2 mg/m3	0.3 g/m3	29.6°C
46	Popoyo	Nicaragua	22.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	30.0°C
47	Oludeniz	Turkey	22.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	24.5°C
48	Arugam Bay	Sri Lanka	22.4m	Crystal clear	0.2 mg/m3	0.4 g/m3	29.4°C
49	Tofo	Mozambique	22.0m	Crystal clear	0.2 mg/m3	0.2 g/m3	25.6°C
50	Ponta Preta	Cape Verde	22.0m	Crystal clear	0.2 mg/m3	0.4 g/m3	27.6°C
51	Mundaka	Spain	21.8m	Crystal clear	0.2 mg/m3	0.3 g/m3	19.0°C
52	San Sebastián	Spain	21.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	19.0°C
53	Zarautz	Spain	21.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	18.9°C
54	Merewether	Australia	21.7m	Crystal clear	0.2 mg/m3	0.2 g/m3	19.9°C
55	Barra de la Cruz	Mexico	21.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	29.8°C
56	San José del Cabo	Mexico	21.4m	Crystal clear	0.2 mg/m3	0.3 g/m3	31.4°C
57	Getxo	Spain	21.3m	Crystal clear	0.2 mg/m3	0.3 g/m3	18.3°C
58	Sopelana	Spain	21.3m	Crystal clear	0.2 mg/m3	0.3 g/m3	18.4°C
59	Somo	Spain	20.6m	Crystal clear	0.2 mg/m3	0.3 g/m3	18.0°C
60	Les Cavaliers	France	20.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	18.7°C
61	Anglet	France	20.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	18.8°C
62	Biarritz	France	20.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	18.6°C
63	Guéthary	France	20.5m	Crystal clear	0.2 mg/m3	0.4 g/m3	18.6°C
64	Huntington Beach	United States	20.3m	Crystal clear	0.2 mg/m3	0.5 g/m3	22.6°C
65	The Wedge	United States	20.3m	Crystal clear	0.2 mg/m3	0.5 g/m3	22.5°C
66	North Stradbroke Island	Australia	20.2m	Crystal clear	0.2 mg/m3	1.6 g/m3	22.4°C
67	Thulusdhoo	Maldives	20.1m	Crystal clear	0.2 mg/m3	0.3 g/m3	29.4°C
68	Deba	Spain	19.7m	Crystal clear	0.2 mg/m3	0.3 g/m3	18.8°C
69	Blacks Beach	United States	19.2m	Crystal clear	0.2 mg/m3	0.6 g/m3	23.2°C
70	La Jolla Cove	United States	19.2m	Crystal clear	0.2 mg/m3	0.6 g/m3	23.2°C
71	Arrifana	Portugal	19.1m	Crystal clear	0.2 mg/m3	0.7 g/m3	20.6°C
72	Jeju Jungmun	South Korea	18.8m	Crystal clear	0.3 mg/m3	0.4 g/m3	24.2°C
73	Izu Peninsula	Japan	18.5m	Crystal clear	0.3 mg/m3	0.3 g/m3	24.1°C
74	El Gouna	Egypt	18.4m	Crystal clear	0.3 mg/m3	1.1 g/m3	26.4°C
75	Vliho Bay	Greece	18.4m	Crystal clear	0.3 mg/m3	0.4 g/m3	23.0°C
76	Angourie	Australia	18.1m	Crystal clear	0.3 mg/m3	0.5 g/m3	20.8°C
77	Nihiwatu	Indonesia	18.0m	Crystal clear	0.3 mg/m3	0.4 g/m3	28.5°C
78	Avoca Beach	Australia	17.8m	Crystal clear	0.3 mg/m3	0.3 g/m3	20.2°C
79	Niijima	Japan	17.8m	Crystal clear	0.3 mg/m3	0.3 g/m3	24.2°C
80	Montañita	Ecuador	17.7m	Crystal clear	0.3 mg/m3	0.5 g/m3	28.1°C
81	Shonan	Japan	17.3m	Crystal clear	0.3 mg/m3	0.4 g/m3	24.0°C
82	Rincón	Puerto Rico	17.3m	Crystal clear	0.3 mg/m3	0.4 g/m3	30.0°C
83	North Malé Atoll	Maldives	17.1m	Crystal clear	0.3 mg/m3	0.7 g/m3	29.5°C
84	Fraserburgh	United Kingdom	17.1m	Crystal clear	0.3 mg/m3	0.5 g/m3	12.3°C
85	Praia do Amado	Portugal	16.9m	Crystal clear	0.3 mg/m3	0.7 g/m3	20.8°C
86	Ngor/Ouakam	Senegal	16.9m	Crystal clear	0.3 mg/m3	0.5 g/m3	29.1°C
87	Sagres	Portugal	16.9m	Crystal clear	0.3 mg/m3	0.7 g/m3	20.3°C
88	Nosara	Costa Rica	16.9m	Crystal clear	0.3 mg/m3	0.3 g/m3	30.1°C
89	Reykjanes Peninsula	Iceland	16.8m	Crystal clear	0.3 mg/m3	0.7 g/m3	8.7°C
90	Santa Teresa	Costa Rica	16.7m	Crystal clear	0.3 mg/m3	0.3 g/m3	30.5°C
91	Hiriketiya	Sri Lanka	16.7m	Crystal clear	0.3 mg/m3	0.5 g/m3	29.0°C
92	Bells Beach	Australia	16.2m	Crystal clear	0.3 mg/m3	0.9 g/m3	16.5°C
93	Torquay	Australia	16.2m	Crystal clear	0.3 mg/m3	0.9 g/m3	15.9°C
94	Boracay	Philippines	15.9m	Crystal clear	0.3 mg/m3	0.3 g/m3	29.9°C
95	Pantín	Spain	15.9m	Crystal clear	0.4 mg/m3	0.4 g/m3	14.2°C
96	Desert Point	Indonesia	15.8m	Crystal clear	0.4 mg/m3	0.3 g/m3	27.9°C
97	Phillip Island	Australia	15.7m	Crystal clear	0.4 mg/m3	0.5 g/m3	16.4°C
98	Saquarema	Brazil	15.4m	Crystal clear	0.4 mg/m3	1.6 g/m3	24.0°C
99	Shipwreck Bay	New Zealand	14.9m	Good	0.4 mg/m3	1.3 g/m3	15.1°C
100	Playa Grande	Costa Rica	14.8m	Good	0.4 mg/m3	0.3 g/m3	30.5°C
101	Narrabeen	Australia	14.7m	Good	0.4 mg/m3	0.3 g/m3	20.5°C
102	Dee Why	Australia	14.7m	Good	0.4 mg/m3	0.3 g/m3	20.5°C
103	Huanchaco	Peru	14.6m	Good	0.4 mg/m3	0.6 g/m3	24.4°C
104	Capbreton	France	14.5m	Good	0.4 mg/m3	1.9 g/m3	18.5°C
105	La Gravière	France	14.5m	Good	0.4 mg/m3	1.9 g/m3	18.4°C
106	Hossegor	France	14.5m	Good	0.4 mg/m3	1.9 g/m3	18.4°C
107	Seignosse	France	14.5m	Good	0.4 mg/m3	1.9 g/m3	18.4°C
108	Weligama	Sri Lanka	14.4m	Good	0.4 mg/m3	0.6 g/m3	29.2°C
109	Lanuza	Philippines	14.3m	Good	0.4 mg/m3	7.8 g/m3	29.8°C
110	Rincon	United States	14.1m	Good	0.4 mg/m3	1.3 g/m3	21.4°C
111	Machrihanish	United Kingdom	13.8m	Good	0.5 mg/m3	1.3 g/m3	-
112	Scarborough Beach	Australia	13.6m	Good	0.5 mg/m3	2.0 g/m3	19.3°C
113	Inch Beach	Ireland	13.1m	Good	0.5 mg/m3	0.5 g/m3	13.3°C
114	Razo	Spain	12.4m	Good	0.5 mg/m3	0.5 g/m3	14.7°C
115	Santa Catalina	Panama	12.3m	Good	0.6 mg/m3	0.7 g/m3	30.2°C
116	Itacaré	Brazil	12.3m	Good	0.6 mg/m3	2.4 g/m3	26.7°C
117	La Union (San Juan)	Philippines	11.9m	Good	0.6 mg/m3	0.4 g/m3	30.1°C
118	Maresias	Brazil	11.8m	Good	0.6 mg/m3	1.2 g/m3	22.9°C
119	Maroubra	Australia	11.6m	Good	0.6 mg/m3	0.2 g/m3	20.5°C
120	Brighton	United Kingdom	11.5m	Good	0.6 mg/m3	2.6 g/m3	17.4°C
121	El Palmar	Spain	11.5m	Good	0.6 mg/m3	0.8 g/m3	20.2°C
122	Punta de Mita	Mexico	11.5m	Good	0.6 mg/m3	3.9 g/m3	30.4°C
123	Jericoacoara	Brazil	11.4m	Good	0.6 mg/m3	12.6 g/m3	27.9°C
124	Sennen Cove	United Kingdom	11.3m	Good	0.6 mg/m3	0.5 g/m3	15.3°C
125	Troncones	Mexico	11.0m	Good	0.7 mg/m3	9.2 g/m3	30.0°C
126	Sayulita	Mexico	10.7m	Good	0.7 mg/m3	2.4 g/m3	30.8°C
127	Lagos	Portugal	10.7m	Good	0.7 mg/m3	0.5 g/m3	20.6°C
128	Lakey Peak	Indonesia	10.6m	Good	0.7 mg/m3	2.8 g/m3	28.2°C
129	Tarifa	Spain	10.6m	Good	0.7 mg/m3	0.3 g/m3	20.6°C
130	Santa Cruz	United States	10.6m	Good	0.7 mg/m3	0.6 g/m3	18.2°C
131	Gwithian	United Kingdom	10.5m	Good	0.7 mg/m3	0.7 g/m3	15.4°C
132	Porthmeor	United Kingdom	10.5m	Good	0.7 mg/m3	0.7 g/m3	15.6°C
133	Praa Sands	United Kingdom	10.5m	Good	0.7 mg/m3	0.7 g/m3	15.4°C
134	Kovalam	India	10.4m	Good	0.7 mg/m3	2.2 g/m3	29.4°C
135	Varkala	India	10.1m	Good	0.8 mg/m3	3.4 g/m3	29.4°C
136	Baisha Bay	Taiwan	9.9m	Good	0.8 mg/m3	6.8 g/m3	25.5°C
137	Taitung	Taiwan	9.8m	Good	0.8 mg/m3	1.8 g/m3	28.6°C
138	Chapel Porth	United Kingdom	9.8m	Good	0.8 mg/m3	0.3 g/m3	15.7°C
139	Porthleven	United Kingdom	9.8m	Good	0.8 mg/m3	0.3 g/m3	15.4°C
140	Porthtowan	United Kingdom	9.8m	Good	0.8 mg/m3	0.3 g/m3	-
141	Bantham	United Kingdom	9.7m	Good	0.8 mg/m3	1.3 g/m3	16.2°C
142	Bigbury-on-Sea	United Kingdom	9.7m	Good	0.8 mg/m3	1.3 g/m3	16.2°C
143	Compton Bay	United Kingdom	9.3m	Good	0.9 mg/m3	4.2 g/m3	16.6°C
144	Ubatuba	Brazil	9.3m	Good	0.9 mg/m3	2.2 g/m3	23.0°C
145	Bracklesham Bay	United Kingdom	9.3m	Good	0.9 mg/m3	3.5 g/m3	17.0°C
146	Florianópolis	Brazil	9.2m	Good	0.9 mg/m3	1.9 g/m3	18.3°C
147	Dungeons	South Africa	9.1m	Good	0.9 mg/m3	0.4 g/m3	15.7°C
148	Kommetjie	South Africa	9.1m	Good	0.9 mg/m3	0.4 g/m3	15.7°C
149	Harlyn Bay	United Kingdom	9.0m	Good	0.9 mg/m3	0.3 g/m3	15.7°C
150	Bocas del Toro	Panama	9.0m	Good	0.9 mg/m3	0.8 g/m3	30.0°C
151	Polzeath	United Kingdom	9.0m	Good	0.9 mg/m3	0.3 g/m3	15.7°C
152	Krui	Indonesia	9.0m	Good	0.9 mg/m3	0.6 g/m3	26.8°C
153	Bude Summerleaze	United Kingdom	9.0m	Good	0.9 mg/m3	1.2 g/m3	-
154	Widemouth Bay	United Kingdom	9.0m	Good	0.9 mg/m3	1.2 g/m3	16.1°C
155	Keramas	Indonesia	9.0m	Good	0.9 mg/m3	0.3 g/m3	28.0°C
156	Canggu	Indonesia	9.0m	Good	0.9 mg/m3	0.3 g/m3	28.0°C
157	Raglan	New Zealand	8.8m	Good	0.9 mg/m3	27.0 g/m3	15.5°C
158	Mavericks	United States	8.7m	Good	1.0 mg/m3	0.8 g/m3	17.1°C
159	Freshwater West	United Kingdom	8.7m	Good	1.0 mg/m3	3.2 g/m3	15.8°C
160	Saltburn-by-the-Sea	United Kingdom	8.7m	Good	1.0 mg/m3	2.3 g/m3	13.0°C
161	Chicama	Peru	8.6m	Good	1.0 mg/m3	2.0 g/m3	24.5°C
162	Lacanau	France	8.5m	Good	1.0 mg/m3	0.3 g/m3	17.2°C
163	Dover	United Kingdom	8.5m	Good	1.0 mg/m3	3.1 g/m3	16.4°C
164	Kuta Lombok	Indonesia	8.5m	Good	1.0 mg/m3	0.5 g/m3	27.5°C
165	Mui Ne	Vietnam	8.4m	Good	1.0 mg/m3	0.5 g/m3	29.4°C
166	Dakar Yoff	Senegal	8.4m	Good	1.0 mg/m3	4.5 g/m3	29.1°C
167	Pascuales	Mexico	8.4m	Good	1.0 mg/m3	0.9 g/m3	29.7°C
168	Bingin	Indonesia	8.3m	Good	1.0 mg/m3	0.3 g/m3	27.5°C
169	Padang Padang	Indonesia	8.3m	Good	1.0 mg/m3	0.3 g/m3	27.1°C
170	Balangan	Indonesia	8.3m	Good	1.0 mg/m3	0.3 g/m3	27.5°C
171	Uluwatu	Indonesia	8.3m	Good	1.0 mg/m3	0.3 g/m3	27.5°C
172	Kimmeridge Bay	United Kingdom	8.1m	Good	1.1 mg/m3	2.3 g/m3	16.9°C
173	Pichilemu	Chile	8.1m	Good	1.1 mg/m3	0.4 g/m3	16.1°C
174	Bournemouth	United Kingdom	7.8m	Moderate	1.1 mg/m3	2.6 g/m3	16.2°C
175	Máncora	Peru	7.7m	Moderate	1.2 mg/m3	4.8 g/m3	27.3°C
176	Durban Bay of Plenty	South Africa	7.7m	Moderate	1.2 mg/m3	0.4 g/m3	22.5°C
177	Salinas	Spain	7.7m	Moderate	1.2 mg/m3	0.4 g/m3	15.7°C
178	Tramore	Ireland	7.6m	Moderate	1.2 mg/m3	0.6 g/m3	14.9°C
179	Constantine Bay	United Kingdom	7.5m	Moderate	1.2 mg/m3	0.8 g/m3	15.7°C
180	Crantock	United Kingdom	7.5m	Moderate	1.2 mg/m3	0.8 g/m3	15.9°C
181	Lusty Glaze	United Kingdom	7.5m	Moderate	1.2 mg/m3	0.8 g/m3	15.9°C
182	Newquay/Fistral	United Kingdom	7.5m	Moderate	1.2 mg/m3	0.8 g/m3	15.9°C
183	Perranporth	United Kingdom	7.5m	Moderate	1.2 mg/m3	0.8 g/m3	15.7°C
184	Watergate Bay	United Kingdom	7.5m	Moderate	1.2 mg/m3	0.8 g/m3	15.7°C
185	Sebastian Inlet	United States	7.4m	Moderate	1.2 mg/m3	2.7 g/m3	25.9°C
186	Garopaba	Brazil	7.4m	Moderate	1.2 mg/m3	3.1 g/m3	17.9°C
187	Seaburn	United Kingdom	7.3m	Moderate	1.3 mg/m3	0.7 g/m3	-
188	Newgale	United Kingdom	7.3m	Moderate	1.3 mg/m3	4.1 g/m3	15.7°C
189	Whitesands Bay	United Kingdom	7.3m	Moderate	1.3 mg/m3	4.1 g/m3	15.5°C
190	Ichinomiya	Japan	7.3m	Moderate	1.3 mg/m3	1.7 g/m3	23.9°C
191	Tsurigasaki Beach	Japan	7.3m	Moderate	1.3 mg/m3	1.7 g/m3	23.9°C
192	Bloubergstrand	South Africa	7.0m	Moderate	1.3 mg/m3	0.7 g/m3	15.0°C
193	Jeffreys Bay	South Africa	7.0m	Moderate	1.3 mg/m3	0.4 g/m3	17.0°C
194	Sandycove	Ireland	7.0m	Moderate	1.4 mg/m3	3.8 g/m3	13.9°C
195	Tiree	United Kingdom	6.9m	Moderate	1.4 mg/m3	0.8 g/m3	13.5°C
196	Manorbier	United Kingdom	6.7m	Moderate	1.4 mg/m3	3.8 g/m3	16.3°C
197	Mount Maunganui	New Zealand	6.5m	Moderate	1.5 mg/m3	2.9 g/m3	16.1°C
198	Eoropie	United Kingdom	6.5m	Moderate	1.5 mg/m3	1.2 g/m3	12.5°C
199	Piha	New Zealand	6.4m	Moderate	1.5 mg/m3	13.1 g/m3	16.5°C
200	Playa Hermosa	Costa Rica	6.4m	Moderate	1.5 mg/m3	0.5 g/m3	30.8°C
201	Pavones	Costa Rica	6.3m	Moderate	1.6 mg/m3	3.0 g/m3	30.0°C
202	Ericeira	Portugal	6.2m	Moderate	1.6 mg/m3	1.1 g/m3	17.1°C
203	Ribeira d'Ilhas	Portugal	6.2m	Moderate	1.6 mg/m3	1.1 g/m3	16.9°C
204	Cabarete	Dominican Republic	6.0m	Moderate	1.7 mg/m3	1.1 g/m3	29.6°C
205	Imsouane	Morocco	5.9m	Moderate	1.7 mg/m3	1.0 g/m3	20.3°C
206	Sidi Kaouki	Morocco	5.8m	Moderate	1.8 mg/m3	7.0 g/m3	19.3°C
207	Essaouira	Morocco	5.8m	Moderate	1.8 mg/m3	7.0 g/m3	19.0°C
208	Lobitos	Peru	5.8m	Moderate	1.8 mg/m3	3.5 g/m3	26.4°C
209	Dunnet Bay	United Kingdom	5.8m	Moderate	1.8 mg/m3	0.9 g/m3	-
210	Thurso East	United Kingdom	5.8m	Moderate	1.8 mg/m3	0.9 g/m3	12.1°C
211	Joss Bay	United Kingdom	5.7m	Moderate	1.8 mg/m3	6.3 g/m3	16.3°C
212	Saunton Sands	United Kingdom	5.6m	Moderate	1.9 mg/m3	4.4 g/m3	16.1°C
213	Putsborough	United Kingdom	5.6m	Moderate	1.9 mg/m3	4.4 g/m3	15.9°C
214	Woolacombe	United Kingdom	5.6m	Moderate	1.9 mg/m3	4.4 g/m3	15.9°C
215	Croyde	United Kingdom	5.6m	Moderate	1.9 mg/m3	4.4 g/m3	16.0°C
216	Leucate	France	5.6m	Moderate	1.9 mg/m3	3.2 g/m3	19.3°C
217	Santa Cruz	Portugal	5.5m	Moderate	1.9 mg/m3	0.5 g/m3	16.5°C
218	Gordon's Bay	South Africa	5.3m	Moderate	2.0 mg/m3	0.7 g/m3	15.5°C
219	Hoddevik	Norway	5.0m	Moderate	2.2 mg/m3	0.3 g/m3	11.7°C
220	Muizenberg	South Africa	4.9m	Moderate	2.3 mg/m3	0.6 g/m3	15.8°C
221	Dakhla	Morocco	4.5m	Moderate	2.5 mg/m3	2.9 g/m3	21.5°C
222	Medewi	Indonesia	4.5m	Moderate	2.6 mg/m3	1.2 g/m3	26.6°C
223	Sandsend	United Kingdom	4.3m	Moderate	2.7 mg/m3	2.0 g/m3	13.4°C
224	Runswick Bay	United Kingdom	4.3m	Moderate	2.7 mg/m3	2.0 g/m3	13.4°C
225	Bamburgh	United Kingdom	4.1m	Moderate	2.9 mg/m3	2.3 g/m3	12.1°C
226	Cimaja	Indonesia	4.1m	Moderate	2.9 mg/m3	2.4 g/m3	27.1°C
227	Easkey	Ireland	4.0m	Moderate	3.1 mg/m3	0.5 g/m3	13.3°C
228	Baleal	Portugal	3.9m	Moderate	3.1 mg/m3	0.8 g/m3	16.0°C
229	Nazaré	Portugal	3.9m	Moderate	3.1 mg/m3	0.8 g/m3	16.4°C
230	Peniche/Supertubos	Portugal	3.9m	Moderate	3.1 mg/m3	0.8 g/m3	16.0°C
231	Cocoa Beach	United States	3.9m	Moderate	3.1 mg/m3	12.2 g/m3	25.3°C
232	Caswell Bay	United Kingdom	3.9m	Moderate	3.1 mg/m3	10.0 g/m3	16.3°C
233	Langland Bay	United Kingdom	3.9m	Moderate	3.1 mg/m3	10.0 g/m3	16.3°C
234	Llangennith	United Kingdom	3.8m	Moderate	3.2 mg/m3	5.6 g/m3	15.9°C
235	La Torche	France	3.7m	Moderate	3.4 mg/m3	0.4 g/m3	15.3°C
236	Brimms Ness	United Kingdom	3.7m	Moderate	3.4 mg/m3	0.2 g/m3	12.1°C
237	Outer Banks	United States	3.6m	Moderate	3.4 mg/m3	4.1 g/m3	16.5°C
238	Cayton Bay	United Kingdom	3.5m	Moderate	3.6 mg/m3	4.0 g/m3	13.9°C
239	Scarborough	United Kingdom	3.5m	Moderate	3.6 mg/m3	4.0 g/m3	-
240	Torres	Brazil	3.5m	Moderate	3.6 mg/m3	3.1 g/m3	17.0°C
241	Matosinhos	Portugal	3.4m	Moderate	3.9 mg/m3	0.7 g/m3	15.6°C
242	Anchor Point	Morocco	3.3m	Moderate	3.9 mg/m3	2.0 g/m3	19.9°C
243	Taghazout	Morocco	3.3m	Moderate	3.9 mg/m3	2.0 g/m3	19.9°C
244	Wrightsville Beach	United States	3.3m	Moderate	3.9 mg/m3	6.2 g/m3	21.0°C
245	New Smyrna Beach	United States	3.3m	Moderate	4.0 mg/m3	2.7 g/m3	25.3°C
246	Tynemouth	United Kingdom	3.1m	Moderate	4.3 mg/m3	2.6 g/m3	12.9°C
247	Rockaway Beach	United States	3.0m	Moderate	4.5 mg/m3	1.0 g/m3	17.0°C
248	Bolinas	United States	3.0m	Reduced	4.6 mg/m3	21.8 g/m3	18.0°C
249	Ocean Beach SF	United States	2.8m	Reduced	4.9 mg/m3	12.5 g/m3	17.2°C
250	Folly Beach	United States	2.8m	Reduced	5.0 mg/m3	5.3 g/m3	20.8°C
251	G-Land	Indonesia	2.8m	Reduced	5.0 mg/m3	0.8 g/m3	26.2°C
252	Pacific City	United States	2.7m	Reduced	5.3 mg/m3	0.9 g/m3	11.7°C
253	Rest Bay	United Kingdom	2.6m	Reduced	5.5 mg/m3	21.2 g/m3	15.7°C
254	Mirleft	Morocco	2.6m	Reduced	5.7 mg/m3	1.6 g/m3	21.0°C
255	Praia do Guincho	Portugal	2.6m	Reduced	5.7 mg/m3	6.3 g/m3	17.6°C
256	Carcavelos	Portugal	2.6m	Reduced	5.7 mg/m3	6.3 g/m3	17.5°C
257	Costa da Caparica	Portugal	2.6m	Reduced	5.7 mg/m3	6.3 g/m3	17.5°C
258	Elands Bay	South Africa	2.5m	Reduced	5.8 mg/m3	1.4 g/m3	14.4°C
259	Tybee Island	United States	2.5m	Reduced	5.9 mg/m3	7.8 g/m3	21.3°C
260	Bundoran	Ireland	2.5m	Reduced	6.0 mg/m3	1.0 g/m3	13.3°C
261	Mullaghmore Head	Ireland	2.5m	Reduced	6.0 mg/m3	1.0 g/m3	13.1°C
262	Strandhill	Ireland	2.4m	Reduced	6.3 mg/m3	0.6 g/m3	-
263	Filey	United Kingdom	2.0m	Reduced	8.8 mg/m3	3.0 g/m3	13.4°C
264	Cannon Beach	United States	1.9m	Reduced	9.4 mg/m3	2.4 g/m3	11.3°C
265	Lahinch	Ireland	1.7m	Reduced	11.7 mg/m3	18.6 g/m3	13.6°C
266	Portrush	United Kingdom	1.3m	Reduced	38.1 mg/m3	3.8 g/m3	13.7°C
267	Unstad	Norway	-	No data	- mg/m3	0.4 g/m3	9.9°C

#4Fernando de Noronha

#16Restaurants (Namotu)

#21Gran Canaria/El Confital

#43Fuerteventura/Cotillo

#66North Stradbroke Island

#89Reykjanes Peninsula

#112Scarborough Beach

#117La Union (San Juan)

#160Saltburn-by-the-Sea

#176Durban Bay of Plenty

#191Tsurigasaki Beach

#230Peniche/Supertubos

#244Wrightsville Beach

#257Costa da Caparica

Satellite ocean colour data from Copernicus Marine and NOAA CoastWatch. Data from 23 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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