Surf Forecasts:
Mewslade Bay surf forecast from 2 Sep 2026:
- Best quality surf: Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 4PM (local time) - 8ft (2.4m), 11s period, WSW swell with 1,365 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s period with WSW swell.
Best Forecast Surf Conditions for Mewslade Bay this week:
The surf forecast for Mewslade Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 7AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mewslade Bay in the next 16 days are 2.4m 11s and forecast to arrive on Monday (Sep 07) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 5th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 7AM (Sat 5th Sep) | 3.5ft (1.1m) 7s |
| Most Powerful | 4PM (Mon 7th Sep) | 8ft (2.4m) 11s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you. I've scanned the charts for Mewslade Bay over the next 16 days, and I have to be honest with you: it's looking pretty bleak. This is one of those stretches where the ocean just can't seem to get its act together. There isn't a single decent session on the cards for this stretch of coast, so let's just call it as it is.
The main problem is that whenever we get any kind of sizeable swell, the wind is just ruining it. We've got a bunch of poor surf conditions flagged up with strong cross-shore and onshore winds. That cleanup period from Wednesday the 2nd through to Friday the 4th, we're looking at waves around 4.3ft to 6.6ft, but it's all being blown out with a fresh breeze. The combined energy gets going, hitting 117 on Wednesday morning and climbing to 517 by Friday morning, but it's all messy, lumpy chop. Not worth your time.
There is one tiny window of hope on Saturday morning, the 5th. The wind drops to nothing, absolutely glassy, and we get a bit of leftover swell at 3.0ft from the WSW. The energy is weak at just 93, but it's the only time the bay looks like a surf spot instead of a washing machine. It'll be small and the period is a short 7 seconds, so it'll be a bit crumbly. Still, if you're desperate for a splash, that's your only real look and one of only two clean-ish windows. The crowd situation can be a bit real here at times too, so expect some company.
Other than that, it's a complete misery fest. There are a few days with a pulse of bigger swell – like the 7th and 8th of September where the energy numbers jump into the 1000s, but that's all tied to fresh cross-shore winds, a 6.9ft to 7.9ft swell, and just crap conditions. That's going to be a lumpy, unsurfable mess, and honestly, at that size and with that much wind, your time might be better spent with a kite than a surfboard. It's just not a paddle-surfing setup.
There's more of the same into the second week. The swell fades quickly after the 10th, and while we get a couple more glassy moments, the waves are just too small, down around 1.3ft to 1.6ft. You're just staring at a flat lake. This is a long, drawn-out blank period. The forecast can change, but as it stands, I'd find another way to spend your time. There's just nothing here worth paddling out for.
Stay salty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Very mild (max 19°C on Wed afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, light winds from the NW by Fri night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 23°C on Sun afternoon, min 14°C on Sat morning). Winds increasing (calm on Sat afternoon, strong winds from the W by Mon night). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 6 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | W 9 | WSW 8 | WSW 5 | WSW 7 | WSW 11 | WSW 9 | WSW 8 | WSW 7 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 107 | 306 | 369 | 256 | 226 | 459 | 509 | 392 | 191 | 86 | 123 | 65 | 40 | 22 | 59 | 319 | 1365 | 917 | 588 | 408 | 645 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | glassy | cross-on | cross | cross | cross-on | on | cross-on | cross | cross-on | cross | cross | cross |
High Tide | 10:08AM7.90m | 10:28PM7.78m | 10:51AM7.44m | 11:16PM7.20m | 11:43AM6.88m | 00:16AM6.58m | 12:52PM6.37m | 1:38AM6.14m | 2:24PM6.19m | 3:16AM6.18m | 3:56PM6.54m | 4:36AM6.67m | 5:04PM7.20m | ||||||||
Low Tide | 4:06PM0.85m | 4:28AM1.10m | 4:49PM1.33m | 5:16AM1.67m | 5:45PM1.90m | 6:20AM2.24m | 7:06PM2.39m | 7:55AM2.58m | 8:54PM2.45m | 9:38AM2.39m | 10:25PM1.99m | 10:53AM1.83m | 11:27PM1.35m | ||||||||
 |  |  |  | |  | |  |  | | | | | | | |  | | | | | |
 | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — |
 | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — |
mm | 2 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 1 | — | 2 | — | 1 | 2 | — |
Temp °C | 18 | 19 | 18 | 18 | 18 | 19 | 16 | 17 | 16 | 14 | 15 | 16 | 19 | 23 | 18 | 17 | 16 | 16 | 16 | 16 | 15 |
Feels °C | 13 | 15 | 14 | 16 | 15 | 12 | 10 | 12 | 12 | 15 | 14 | 15 | 15 | 20 | 17 | 11 | 9 | 8 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | — | SW 15 | SW 15 | — | — | SW 15 | SW 14 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | W 9 | WSW 8 | — | W 12 | — | — | — | — | — |
| kJ | 10 | — | 9 | 8 | — | — | 8 | 8 | 191 | 86 | 123 | 65 | 40 | 22 | — | 274 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 5 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 8 | 7 | 7 | 7 | 7 | 7 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 15 | — | — | — | — | SW 13 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 5 | — | — | — | — | 6 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | WSW 8 | — | — | — | — | ESE 4 | SSE 4 | WSW 5 | WSW 7 | WSW 11 | WSW 9 | WSW 8 | WSW 7 | W 8 |
| kJ | 107 | 306 | 369 | 256 | 226 | 459 | 509 | 392 | — | — | — | — | 19 | 10 | 59 | 319 | 1365 | 917 | 588 | 408 | 645 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 415 | 322 | 172 | 124 | 322 | 159 | 358 | 260 | 31 | 0 | 113 | 4 | 261 | 4 | 38 | 448 | 33 | 433 | 650 | 603 | 260 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Mewslade Bay Surf forecast
The above surf forecast table for Mewslade Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mewslade Bay can be found by selecting the local surf guide option on the grey menu. Our Mewslade 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 (Mewslade 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 Mewslade 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.
Mewslade Bay is 25 km (16 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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