Surf Forecasts:
Mewslade Bay surf forecast from 22 Aug 2026:
- Most powerful swell: Friday 28 Aug, 1AM (local time) - 5ft (1.6m), 10s period, SW swell with 541 kJ wave energy.
Best Forecast Surf Conditions for Mewslade Bay this week:
The most powerful waves expected at Mewslade Bay in the next 16 days are 1.6m 10s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Fri 28th Aug) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, let’s be real, Mewslade Bay is looking pretty bleak for a while. The next week is a total write-off. We're talking ankle-biters and onshore slop. There’s a little bump of energy around the 27th and 28th, but the wind is just going to shred it apart. We’ll have a few days of nothing before we get a sniff of a wave.
The only one that looks like it might have a bit of punch is Saturday the 5th of September. We’ve got some real swell coming in from the WSW, pushing overhead at around 5 feet. The energy is moderate, hitting 270 on the combined scale. That’s the most organized swell of the whole stretch. But here’s the kicker: the wind’s gonna be blowing a solid 18 mph from the SW. It’s going to be a lumpy, choppy mess. It’s one for the experts only, and even then, it’ll be a fight. A beach break like this will have a hard time holding any shape.
The afternoon of the 4th might offer a bit of relief with a cleaner cross-shore breeze and some energy at 173, but it’s small, only 3 feet, and the period is short. You might get a few grindy ones, but it won't be pretty.
To be honest, the whole 16-day outlook doesn't offer a single day that's both big and clean. The wind is just always going to be on it. With the poor surf quality and strong winds, a lot of these days will be better for a kite than a paddle board.
But hey, that last weekend shows some signs of life. If the wind backs off, that Saturday could be alright. For now, keep your board in the car and your expectations low.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 13°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the E by Mon morning). | Days 5-7 Weather SummaryHeavy rain (total 26mm), heaviest during Wed night. Warm (max 22°C on Tue afternoon, min 16°C on Thu afternoon). Winds increasing (calm on Wed afternoon, strong winds from the SSW by Thu afternoon). | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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) | WSW 10 | WSW 9 | W 9 | WSW 14 | SW 10 | SW 9 | W 9 | W 9 | W 8 | W 8 | W 9 | W 8 | W 8 | SW 6 | SSW 4 | SW 8 | SW 10 | SW 9 | SW 8 | SW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 18 | 16 | 8 | 18 | 25 | 14 | 7 | 7 | 7 | 5 | 7 | 13 | 12 | 10 | 17 | 177 | 541 | 405 | 196 | 82 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross | cross |
High Tide | 3:07AM5.42m | 3:51PM5.63m | 4:30AM5.72m | 4:59PM6.09m | 5:25AM6.23m | 5:45PM6.67m | 6:06AM6.78m | 6:23PM7.25m | 6:42AM7.30m | 6:58PM7.78m | 7:15AM7.75m | 7:31PM8.20m | ||||||||
Low Tide | 8:44PM3.11m | 9:29AM3.09m | 10:16PM2.89m | 10:45AM2.71m | 11:17PM2.42m | 11:36AM2.19m | 00:01AM1.88m | 12:15PM1.66m | 00:37AM1.35m | 12:49PM1.17m | 1:10AM0.90m | 1:21PM0.77m | 1:41AM0.55m | |||||||
 |  | | | |  |  |  | | | | | |  |  |  |  |  | | | |
 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 5 | 3 | 7 | 3 | 2 | 4 |
Temp °C | 18 | 14 | 16 | 21 | 19 | 19 | 23 | 20 | 20 | 22 | 20 | 19 | 22 | 20 | 18 | 17 | 17 | 17 | 17 | 16 |
Feels °C | 15 | 10 | 15 | 17 | 16 | 14 | 19 | 14 | 16 | 19 | 17 | 18 | 22 | 18 | 16 | 11 | 13 | 16 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 9 | W 9 | WSW 14 | SW 10 | SW 9 | SW 9 | W 9 | W 8 | SW 8 | SSW 8 | W 8 | W 8 | SW 6 | W 7 | SW 14 | SW 10 | SW 9 | SW 8 | SW 8 |
| kJ | 18 | 16 | 6 | 18 | 25 | 14 | 3 | 6 | 5 | 3 | 7 | 13 | 12 | 9 | 4 | 7 | 541 | 405 | 196 | 82 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | W 8 | SW 14 | SW 14 | W 9 | SW 13 | SW 13 | W 8 | W 9 | SSW 8 | SSW 8 | W 8 | — | SW 14 | — | — | — | W 11 |
| kJ | 8 | 8 | 8 | 6 | 8 | 8 | 6 | 7 | 7 | 5 | 7 | 6 | 6 | 10 | — | 7 | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | SW 12 | — | — | SW 14 | W 9 | SW 14 | SW 9 | SW 9 | W 10 | SW 13 | SW 13 | SW 4 | SW 12 | W 12 | W 12 | — | — | — | — |
| kJ | — | 6 | — | — | 8 | 2 | 7 | 3 | 3 | 2 | 7 | 6 | 1 | 6 | 3 | 3 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 3 | — | — | — | E 3 | E 4 | E 4 | E 4 | E 3 | SE 3 | SE 3 | ESE 2 | — | SSW 4 | SW 8 | — | — | — | WSW 8 |
| kJ | — | 2 | — | — | — | 11 | 7 | 18 | 18 | 3 | 2 | 2 | 1 | — | 17 | 177 | — | — | — | 64 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 188 | 180 | 78 | 118 | 4 | 377 | 321 | 270 | 125 | 78 | 126 | 153 | 54 | 66 | 79 | 135 | 64 | 2 | 138 | 406 |
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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