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Caswell Bay's horseshoe cove and cliffside homes above clean Gower surf
Conditions forecast

Caswell Bay, Mumbles

United Kingdom · Part of South Wales

Updated recently

As of 19:24 BST on 15 October 2026, Caswell Bay, Mumbles scores 19/100 (Flat) for surf on PeakWave.

Wind
Surf · Today’s score · Flat
19/100

Wind: limiting. Tide: ideal.

Swell
2.3 m
9 s · W
Wind
28 km/h
Cross-onshore
Tide
High
Approximate timing
Water
14.1 °C
⚠ Rip risk elevated
  • Solid swell: Solid swell: limiting. Shown separately from the conditions score.
  • Strong current: Strong current: limiting. Shown separately from the conditions score.
  • Storm forecast unavailable
Main limiter
Wind
Strongest positive
Tide

PeakWave scores are planning signals, not safety clearance. Check local authorities, official bulletins and on-site conditions before you go. Read our editorial policy.

What matters for this session

Read the swell size, period and direction together with the wind at the beach. The tide chart below adds timing context for this break.

Today's forecast

Local time 9:49pm

Session recommendations are unavailable while safety or forecast evidence is incomplete or a red flag is active.

12am
☁️
Dark
1am
☁️
Dark
2am
☁️
Dark
3am
☁️
Dark
4am
☁️
Dark
5am
☁️
Dark
6am
☁️
Dark
7am
🌤️
Dark
8am
☀️
16
Flat
2.1m · 9s
↗ 26 km/h
14.1°C water
9am
☁️
15
Flat
2.2m · 9s
↗ 28 km/h
14.1°C water
10am
☁️
16
Flat
2.3m · 9s
↗ 27 km/h
14.1°C water
11am
🌤️
15
Flat
2.3m · 9s
↗ 28 km/h
14.1°C water
12pm
☁️
16
Flat
2.3m · 9s
↗ 27 km/h
14.1°C water
1pm
☁️
19
Flat
2.3m · 9s
↗ 23 km/h
14.1°C water
2pm
☁️
19
Flat
2.3m · 9s
↗ 23 km/h
14.1°C water
3pm
☁️
19
Flat
2.3m · 9s
↗ 23 km/h
14.1°C water
4pm
☁️
18
Flat
2.3m · 9s
↗ 25 km/h
14.1°C water
5pm
🌧️
21
Poor
2.3m · 9s
↗ 23 km/h
14.1°C water
6pm
🌧️
19
Flat
2.3m · 9s
↗ 24 km/h
14.1°C water
7pm
🌧️
Dark
8pm
🌧️
Dark
9pm
🌧️
Dark
10pm
🌧️
Dark
11pm
🌧️
Dark

Tide

Approximate model

Heights relative to mean sea level

5am8pm
High 08:50+3.0 m
Low 14:58-2.8 m
8:00amsunrise7:00pmsunset

Next 7 days

Forecast via Open-Meteo
Today
15 Oct
🌧️
19/100
2.3 m swell · 9 s
Wind 28 km/h
empty
Midweek
Caution
Tomorrow
16 Oct
🌧️
31/100
2.1 m swell · 8 s
Wind 21 km/h
empty
Friday
Best conditions
Sat
17 Oct
☁️
20/100
1.3 m swell · 8 s
Wind 14 km/h
quiet
Saturday
Sun
18 Oct
🌤️
5/100
0.6 m swell · 8 s
Wind 14 km/h
quiet
Sunday
Mon
19 Oct
☁️
10/100
0.6 m swell · 11 s
Wind 10 km/h
empty
Midweek
Tue
20 Oct
🌧️
9/100
0.6 m swell · 10 s
Wind 13 km/h
empty
Midweek
Wed
21 Oct
🌧️
25/100
0.6 m swell · 11 s
Wind 16 km/h
empty
Midweek

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Frequently asked questions

How often is this page updated?

Each location is refreshed every three hours. The hourly view, 7-day forecast, luck factor and packing notes come from the same stored update.

What is the luck factor?

We compare the 7-day forecast with the version-matched historical observations available for the same time of year at Caswell Bay. The delta shows whether conditions look better, worse or about the same as a typical mid-October.

How is 'best session' picked?

We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.

Where does the data come from?

Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).

Does the score capture local knowledge?

Partly. The model uses stored spot geometry, swell ranges and tide preferences where configured. It cannot see changing banks, crowds, access, closures or everything visible on a local cam, so treat it as a starting point.

When is the best time for Surf at Caswell Bay?

The best week for surf at Caswell Bay is the week of 23 November (score 3/5) with low crowds.