Surf Forecasts:
Swansea Bay Harbour Wall surf forecast from 12 Nov 2026:
- Best quality surf: No days rated 1★ or higher at Swansea Bay Harbour Wall in the next 16 days. The closest to surfable is Wednesday 25 Nov, 12AM (local time) – 3.5ft (1.1m), 14s period, WSW swell with cross-onshore winds.
- Most powerful swell: Wednesday 25 Nov, 12AM (local time) - 3.5ft (1.1m), 14s period, WSW swell with 452 kJ wave energy.
- Next surfable swell (1★+): None forecast at Swansea Bay Harbour Wall before Saturday 28 Nov. Conditions stay below 1★ throughout, with swell peaking at 3.5ft (1.1m), 14s on Wednesday 25 Nov.
Best Forecast Surf Conditions for Swansea Bay Harbour Wall this week:
The most powerful waves expected at Swansea Bay Harbour Wall in the next 16 days are 1.1m 14s and forecast to arrive on Wednesday (Nov 25) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 6s period and expected on Thursday (Nov 19) at 6AM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12AM (Wed 25th Nov) | 3.5ft (1.1m) 14s |
Table - best surf conditions forecast for Swansea Bay Harbour Wall over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Very mild (max 12°C on Sat night, min 4°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the SW by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Tue morning. Very mild (max 13°C on Tue morning, min 6°C on Mon night). Winds increasing (light winds from the SW on Mon afternoon, gales from the W by Tue afternoon). | ||||||||||||||||||||
Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 10 | SW 10 | W 10 | — | — | — | — | W 12 | W 12 | SW 7 | WSW 8 | W 9 | W 9 | WSW 10 | WSW 10 | SW 9 | WSW 10 | SW 11 | WSW 13 | WSW 17 | WSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 4 | 2 | 0 | 0 | 0 | 0 | 3 | 3 | 16 | 39 | 44 | 25 | 21 | 9 | 3 | 37 | 31 | 70 | 252 | 131 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-off | cross-off | cross-on | cross | cross-on | cross | cross-off | cross-off | off | cross-off |
High Tide | 7:54PM8.74m | 8:11AM8.75m | 8:30PM8.38m | 8:47AM8.37m | 9:08PM7.96m | 9:27AM7.95m | 9:51PM7.54m | 10:15AM7.54m | 10:45PM7.18m | 11:14AM7.24m | 11:51PM6.97m | 12:24PM7.14m | 1:05AM7.03m | ||||||||
Low Tide | 1:37PM1.71m | 1:51AM1.90m | 2:12PM2.03m | 2:26AM2.26m | 2:49PM2.43m | 3:05AM2.69m | 3:31PM2.86m | 3:50AM3.13m | 4:23PM3.26m | 4:48AM3.49m | 5:31PM3.53m | 6:03AM3.67m | 6:49PM3.53m | ||||||||
 | |  | | | |  | |  |  | |  |  | |  |  | |  | | | | |
 | 7:26 | — | — | 7:28 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:37 | — | — |
 | — | 4:30 | — | — | 4:29 | — | — | 4:28 | — | — | 4:25 | — | — | 4:24 | — | — | 4:23 | — | — | 4:22 | — |
mm | — | — | — | — | — | — | — | — | 4 | 3 | 2 | — | — | — | 6 | 13 | 5 | 1 | — | — | — |
Temp °C | 8 | 8 | 4 | 7 | 7 | 6 | 8 | 9 | 12 | 11 | 11 | 9 | 8 | 8 | 9 | 13 | 9 | 7 | 9 | 9 | 6 |
Feels °C | 2 | 2 | -1 | 5 | 4 | 3 | 3 | 4 | 5 | 5 | 3 | -1 | 4 | 5 | 3 | 5 | -4 | 4 | 5 | 4 | 2 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | W 10 | — | — | — | — | W 12 | W 12 | W 11 | — | — | W 9 | WSW 10 | WSW 10 | SW 9 | WSW 10 | SW 11 | WSW 13 | WSW 17 | WSW 15 |
| kJ | 4 | 4 | 2 | — | — | — | — | 3 | 3 | 2 | — | — | 25 | 21 | 9 | 3 | 37 | 31 | 70 | 252 | 131 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 19 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 35 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 5 | SW 7 | WSW 8 | W 9 | WSW 9 | — | — | — | — | — | — | — | NW 4 |
| kJ | — | — | — | — | — | — | — | — | 1 | 16 | 39 | 44 | 17 | — | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 9 | 21 | 26 | 26 | 26 | 26 | 26 | 391 | 179 | 386 | 341 | 17 | 43 | 119 | 500 | 418 | 8 | 7 | 8 | 7 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Swansea Bay Harbour Wall Surf forecast
The above surf forecast table for Swansea Bay Harbour Wall provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Swansea Bay Harbour Wall can be found by selecting the local surf guide option on the grey menu. Our Swansea Bay Harbour Wall 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 (Swansea Bay Harbour Wall) 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 Swansea Bay Harbour Wall 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.
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