Surf Forecasts:
Mewslade Bay surf forecast from 3 Aug 2026:
- Best quality surf: Sunday 9 Aug, 1AM (local time) - 3.5ft (1.1m), 7s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 10AM (local time) - 7ft (2.1m), 8s period, WSW swell with 547 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 1AM (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 Sunday (Aug 09) at 1AM. The primary swell is predicted to be 1.1m and 7s period. 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 2.1m 8s and forecast to arrive on Wednesday (Aug 05) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 09) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 9th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 1AM (Sun 9th Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 10AM (Wed 5th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's on the cards for Mewslade Bay.
To be brutally honest with you, the first week and a half is a write-off. We’re looking at a long stretch of genuinely poor conditions starting August 3rd and running right through to August 15th. The swell is tiny, the winds are messy, and the water is just a mess. It’s a tough run for the Gower. The water temperature is sitting at 67°, which is a solid 6° warmer than usual for this time of year – it’s noticeable, but it won’t make the junk surf any better.
The first real flicker of life doesn’t show up until the morning of Sunday, August 16th. We’ve got a 6ft swell from the W, with a period of 8 seconds, and the combined energy is moderate at 320. The wind is cross-shore, so it’s not clean, but at least there’s some size. The afternoon sees a bit more push with 6ft from the W, and the energy jumps to 408, but the wind swings cross-onshore and it’s only marginal. This is the only real window in the whole outlook, and even then, it’s barely a whisper.
The standout across the entire 16-day window is Sunday, August 16th. It’s the only day with any legitimate size. The morning shows a 6ft W swell, and while the cross-shore wind won’t make it perfect, it’s the closest thing to a surfable wave we’re going to see. The afternoon has a bit more energy (408) but the wind is light cross-onshore, so it’s a gamble. For Mewslade Bay, an exposed south-west facing beach, this is your best bet. Don’t expect anything clean, but it’s the only one on the board.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 21°C on Mon morning, min 14°C on Wed night). Winds increasing (light winds from the W on Mon night, fresh winds from the W by Wed morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 15°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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) | WSW 9 | WSW 9 | WSW 8 | SW 7 | SW 7 | SW 6 | WSW 8 | WSW 7 | W 7 | W 6 | W 6 | W 5 | W 5 | WSW 5 | W 9 | WSW 5 | WSW 6 | WSW 7 | WSW 6 | WSW 7 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 84 | 94 | 45 | 136 | 132 | 201 | 547 | 310 | 200 | 143 | 71 | 20 | 20 | 14 | 6 | 44 | 155 | 111 | 30 | 28 | 23 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | on | cross-on | cross | cross-on | cross | cross | cross | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-off | glassy | cross-on | off |
High Tide | 10:15PM7.93m | 10:35AM7.56m | 10:55PM7.62m | 11:18AM7.25m | 11:41PM7.22m | 12:09PM6.87m | 00:38AM6.78m | 1:13PM6.52m | 1:52AM6.45m | 2:35PM6.38m | 3:19AM6.43m | 3:59PM6.64m | |||||||||
Low Tide | 3:56PM0.90m | 4:18AM0.96m | 4:33PM1.13m | 4:58AM1.24m | 5:17PM1.45m | 5:45AM1.61m | 6:11PM1.84m | 6:46AM2.01m | 7:22PM2.17m | 8:06AM2.27m | 8:52PM2.25m | 9:36AM2.19m | 10:20PM1.94m | ||||||||
 | |  |  | | | |  |  | | | | | | | | | | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 19 | 19 | 18 | 16 | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 16 | 17 | 17 | 17 | 18 | 22 | 19 |
Feels °C | 18 | 18 | 19 | 17 | 17 | 14 | 10 | 10 | 11 | 11 | 11 | 13 | 15 | 15 | 14 | 14 | 13 | 16 | 17 | 20 | 16 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 8 | — | W 15 | — | — | SW 13 | SW 13 | W 10 | W 10 | W 5 | W 5 | W 9 | W 9 | W 9 | W 9 | WSW 7 | WSW 6 | W 8 | WSW 6 |
| kJ | 84 | 94 | 45 | — | 4 | — | — | 7 | 7 | 2 | 8 | 20 | 20 | 6 | 6 | 6 | 2 | 111 | 30 | 6 | 23 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 13 | SW 12 | W 10 | W 9 | SW 12 | SW 12 | — | W 13 | — | WSW 8 | S 12 | W 8 |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 6 | 7 | 7 | 6 | 5 | — | 3 | — | 6 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 12 | SW 12 | — | — | — | — | — | W 8 | W 8 | S 12 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | — | — | — | — | — | 1 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | ESE 2 | — | — | SW 7 | SW 7 | SW 6 | WSW 8 | WSW 7 | W 7 | W 6 | W 6 | — | SSW 2 | WSW 5 | WSW 4 | WSW 5 | WSW 6 | — | — | WSW 7 | N 3 |
| kJ | 1 | — | — | 136 | 132 | 201 | 547 | 310 | 200 | 143 | 71 | — | 1 | 14 | 5 | 44 | 155 | — | — | 28 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 1 | 4 | 124 | 381 | 398 | 419 | 896 | 31 | 358 | 387 | 359 | 367 | 378 | 214 | 181 | 395 | 0 | 4 | 168 | 318 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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