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Surf Forecasts:

Caswell Bay surf break

Caswell Bay surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 12 pm Saturday 30 Aug 2025 BST
Forecast update in hr  min  s Forecast update imminent
Caswell Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Caswell Bay sea temperature is
19.5° C
 (Which is 3.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Caswell Bay this week:

The surf forecast for Caswell Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 02) at 1PM. The primary swell is predicted to be 1.5m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Caswell Bay in the next 12 days are 3.0m 12s and forecast to arrive on Sunday (Aug 31) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Sep 03) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Tue 2nd Sep)5ft (1.5m) 9s
Best Surf 1PM (Tue 2nd Sep)5ft (1.5m) 9s
Most Powerful 4PM (Sun 31st Aug)10ft (3.0m) 12s

Table - best surf conditions forecast for Caswell Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
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Short Range Forecast Heavy rain (total 31mm), heaviest during Sat afternoon. Very mild (max 18°C on Sat afternoon, min 14°C on Mon night). Winds decreasing (strong winds from the SSW on Sat afternoon, light winds from the SSE by Mon night).

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Tue night. Very mild (max 19°C on Wed morning, min 14°C on Tue night). Winds increasing (light winds from the W on Tue afternoon, fresh winds from the SSW by Wed morning).

Saturday
30
Sunday
31
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
WSW
1.7
SW
2.5
WSW
3
WSW
3
WSW
2.5
WSW
2.5
WSW
2.5
WSW
1.6
WSW
1.5
WSW
1.3
WSW
1.5
WSW
1.5
WSW
1.3
WSW
0.8
WSW
0.9
WSW
0.9
WSW
0.8
WSW
1.3
WSW
1.2
WSW
1.3
WSW
Period(s) (?)979121212121281099121111109910106
Wave
Graph
(?)Metric surfscale
Energy (?)268300190444292907369817511913564395563486614423239181192231508269169
Wind
(km/h)
25
S
45
SSW
40
SW
40
SSW
40
SW
35
SSW
35
WSW
35
WSW
25
SW
15
ESE
10
W
20
SW
40
SSW
35
SW
35
SSW
25
WNW
30
SW
15
W
15
NW
20
W
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		ononononcross-
on		oncross-
on		oncross-
off		cross-
on		onononcross-
on		crossoncross-
on		crosscross-
on		glass
High Tide
/ height (m)
10:52AM
7.85
11:07PM
7.67
11:27AM
7.33
11:50PM
7.10
12:29PM
6.81
1:12AM
6.62
2:22PM
6.64
3:04AM
6.66
3:54PM
7.06
4:25AM
7.21
4:57PM
7.77
5:23AM
7.91
5:45PM
8.49
Low Tide
/ height (m)
4:50PM
2.77
5:05AM
3.07
5:31PM
3.35
5:52AM
3.65
6:48PM
3.89
7:41AM
4.08
8:46PM
3.93
9:31AM
3.84
10:08PM
3.42
10:42AM
3.20
11:07PM
2.71
11:33AM
2.49
11:54PM
2.02
Saturday
30
Sunday
31
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Sunrise6:24--6:26--6:26--6:28--6:30--6:31--6:33--
Sunset-8:07--8:06--8:02--8:00--7:59--7:57--7:53-
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
light rain
rain showers
rain showers
rain showers
rain showers
light rain
rain showers
cloud
rain showers
rain showers
thunderstorm
thunderstorm
clear
clear
clear
Rain (mm)
2622165251143-9135---
Temp. °C171816171716171716171716191818161616161615
Feels °C (?)111291099111111151613141313121013131214
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Wales - Gower

  1. weather stationWind Update The wind is still cross-on at Caswell Bay (moderate winds from the SSE at Llethryd Barns 7 km from Caswell Bay). 1.2m 5s windswell from the SSW with a 0.6m 9s swell from the WSW. 2 swells combining to make bigger set waves.

    1 hour 33 minutes ago Caswell Bay
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1 h 33 min ago

24 km/h
SSE
Cross-On
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Caswell Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Caswell Bay at:
surf-forecast.com

Information about the Caswell Bay Surf forecast

The above surf forecast table for Caswell Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Caswell Bay can be found by selecting the local surf guide option on the grey menu. Our Caswell Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Caswell Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Caswell Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Caswell Bay is 9 km (6 miles) from Swansea. If you plan a holiday in Wales - Gower, look for hotels and other accommodation in Swansea. Swansea has rooms for a wide range of budgets as well as car hire and transport links.

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