Surf Forecasts:
Mewslade Bay surf forecast from 26 Jul 2026:
- Best quality surf: Sunday 2 Aug, 10AM (local time) - 3.5ft (1.1m), 10s period, WSW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 4PM (local time) - 5ft (1.6m), 7s period, W swell with 257 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 7AM (local time) - 3ft (0.9m), 10s 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 Sunday (Aug 02) at 7AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.2m and 6s. 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 1.6m 7s and forecast to arrive on Sunday (Jul 26) 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 (Sun 2nd Aug) | 3ft (0.9m) 10s |
| Best Surf | 10AM (Sun 2nd Aug) | 3.5ft (1.1m) 10s |
| Most Powerful | 4PM (Sun 26th Jul) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Mewslade Bay has got cookin’ for us.
Right off the bat, I gotta be straight with you – this outlook is a bit of a gut punch. We’re looking at a long, dry spell. For the first seven days, from Sunday the 26th of July right through to Saturday the 1st of August, it’s pretty much a write-off. The swell is tiny, the wind is all over the shop, mostly cross or cross-onshore, and the water is a messy, lumpy chop. There’s just no love for the surfer here. The water temperature is sitting at a very unusual 68°F at the start, which is a whopping 8°F warmer than normal for this time of year, but that’s little comfort when the waves are junk.
We hit a bit of a turning point on Sunday the 2nd of August. The morning session is the only real standout in this whole 16-day window. The wind is light and offshore from the east, with a light breeze, so the surface is clean. We’ve got a 4ft swell from the southwest, but here’s the kicker – it’s got a period of 10 seconds, which is a proper groundswell. The combined energy is moderate at 207. This is a window of opportunity for an intermediate surfer at Mewslade Bay, groundswell like this tends to offer better shape. Just keep an eye on the crowd, as it can get busy here sometimes.
After that little tease, it’s back to the struggle. The following week is a real mixed bag of onshore winds, rain, and weak, short-period junk. There’s a big spike in size on Friday the 7th of August, with a 10ft swell from the WSW, but the wind is a moderate cross-onshore and the wave energy is a very strong 1469. That’s a lot of power, but it’s going to be a choppy, blown-out mess. That’s honestly more of a kite-surfing show than a day for a paddle board. The wind picks up again on the 8th, with a strong breeze blowing offshore, but the swell is inconsistent and weak.
So, to sum it up: the only window worth paddling out for is the morning of Sunday the 2nd of August. The rest of the period is a long stretch of waiting for the ocean to get its act together. Don’t lose hope, the forecasts can change, but for now, that’s the honest truth.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue afternoon, min 14°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun morning, light winds from the NW by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Wed morning, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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) | W 7 | W 7 | W 7 | W 7 | WSW 6 | W 6 | WSW 6 | W 5 | WSW 5 | WSW 5 | WSW 5 | W 10 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 5 | W 6 | W 5 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 282 | 257 | 134 | 107 | 77 | 76 | 34 | 13 | 8 | 5 | 5 | 8 | 62 | 134 | 98 | 60 | 62 | 20 | 32 | 13 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | on | cross | off | cross | cross | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-off | cross-on | cross-off |
High Tide | 5:18PM6.29m | 5:43AM6.38m | 6:05PM6.72m | 6:26AM6.77m | 6:46PM7.16m | 7:04AM7.15m | 7:22PM7.55m | 7:40AM7.47m | 7:57PM7.87m | 8:14AM7.70m | 8:30PM8.07m | 8:47AM7.83m | 9:04PM8.16m | ||||||||
Low Tide | 11:02AM2.48m | 11:32PM2.28m | 11:53AM2.12m | 00:19AM1.89m | 12:35PM1.72m | 00:58AM1.50m | 1:12PM1.35m | 1:34AM1.18m | 1:46PM1.06m | 2:08AM0.93m | 2:18PM0.86m | 2:40AM0.78m | 2:50PM0.77m | 3:11AM0.73m | |||||||
 | |  |  | |  | | | | | | | | | | | | | | |  | |
 | 5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — |
 | — | — | 9:15 | — | — | 9:13 | — | — | 9:12 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 18 | 17 | 18 | 18 | 19 | 21 | 20 | 24 | 22 | 18 | 17 | 17 | 17 | 16 | 17 | 16 | 16 | 18 | 17 |
Feels °C | 13 | 14 | 15 | 14 | 16 | 18 | 19 | 21 | 20 | 24 | 21 | 17 | 13 | 13 | 15 | 11 | 13 | 13 | 13 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | W 7 | W 7 | — | — | WSW 6 | W 5 | WSW 5 | WSW 5 | W 10 | W 10 | W 10 | — | W 6 | WSW 6 | W 9 | W 5 | W 6 | W 5 | WSW 6 |
| kJ | — | — | 134 | 107 | — | — | 34 | 13 | 8 | 5 | 2 | 8 | 2 | — | 78 | 58 | 2 | 20 | 32 | 13 | 6 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 8 | W 8 | W 8 | W 8 | W 7 | W 10 | — | — | — | — | — | — | W 11 | W 10 | W 9 |
| kJ | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 12 | W 11 | W 11 | — | — | — | — | — | — | — | — | — | W 8 | W 8 |
| kJ | — | — | — | — | — | — | — | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — | 1 | 1 |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | — | W 6 | WSW 6 | W 6 | — | — | — | — | WSW 5 | WSW 4 | WSW 5 | WSW 6 | WSW 6 | W 6 | WSW 6 | — | — | — | — |
| kJ | 282 | 257 | — | 86 | 77 | 76 | — | — | — | — | 5 | 7 | 62 | 134 | 98 | 60 | 62 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 756 | 904 | 155 | 358 | 358 | 114 | 126 | 140 | 78 | 125 | 408 | 366 | 358 | 358 | 12 | 195 | 426 | 180 | 180 | 405 | 204 |
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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