Surf Forecasts:
Mewslade Bay surf forecast from 2 Aug 2026:
- Best quality surf: Sunday 9 Aug, 1AM (local time) - 4ft (1.2m), 7s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 5.5ft (1.7m), 8s period, WSW swell with 355 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 1AM (local time) - 4ft (1.2m), 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 1.2m 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 1.7m 8s and forecast to arrive on Wednesday (Aug 05) at 4PM. 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 3s period and expected on Sunday (Aug 09) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 9th Aug) | 4ft (1.2m) 7s |
| Best Surf | 1AM (Sun 9th Aug) | 4ft (1.2m) 7s |
| Most Powerful | 4PM (Wed 5th Aug) | 5.5ft (1.7m) 8s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it for Mewslade Bay.
First thing you’ll notice is the water: it’s sitting at 67°F, which is a whopping 6°F warmer than normal for this time of year. That’s seriously unusual – you’ll feel like you’re surfing in summer, not early August.
Now, the bad news. The next two weeks are a real struggle. We’ve got a long stretch of poor surf conditions, with almost nothing on the cards until the second week. From Sunday 2nd right through to Wednesday 13th August, it’s a write-off. The swell is tiny, wind is messy, and the wave quality is just not there. You’ll be staring at flat, choppy, or onshore junk. Not worth the drive.
The first real glimmer of hope lands on Thursday 13th August morning. We get a tiny 2ft swell from the WSW, with a clean, glassy feel thanks to a light NW cross-off breeze. The energy is weak (60), but at least it’s surfable. It’s small and ordinary, but you could get a few fun little ones if you’re desperate.
Thursday 14th August sees a bump in size – 5ft from the WSW, period around 8 seconds. The energy picks up to moderate (257). The wind is a gentle cross-shore from the ESE in the morning, which is okay, but it’s not clean. Still, it’s the best of a bad bunch for a few days.
But the real standout? That’s Sunday 16th August morning. The swell jumps to 6ft from the WSW, and the energy is pumping (589). The wind is a light NW cross-off, making for clean conditions. The forecast says “expect very good surf conditions,” and I’m calling it – that’s your best window. The swell is a bit solid for beginners, but intermediates will love it. Just remember, it’s over a week away, so keep an eye on the forecast.
The afternoons on that Sunday get messy with onshore wind, so get out early. After that, Monday 17th drops back to 4ft and cross-shore chop, so don’t sleep on that Sunday morning window.
Bottom line: for the next 11 days, you’re basically waiting. Then Thursday 14th offers a small but possible session, and Saturday 16th morning is the clear winner. Mark it, but don’t book holidays yet – long-range stuff can shift.
Rusty out.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 22°C on Sun afternoon, min 16°C on Sun morning). Winds increasing (calm on Sun afternoon, fresh winds from the WSW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Fri night. Very mild (max 18°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed morning, calm by Thu night). | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 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) | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | SW 7 | SW 6 | SW 7 | WSW 8 | WSW 8 | W 7 | W 6 | WSW 6 | W 5 | WSW 5 | WSW 5 | W 5 | W 5 | WSW 6 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 22 | 13 | 49 | 84 | 84 | 44 | 122 | 144 | 271 | 302 | 355 | 176 | 123 | 60 | 21 | 9 | 14 | 21 | 59 | 225 | 131 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | cross | cross | cross-on | on | on | cross-on | cross | cross-on | cross-off | cross-off | cross-on | glassy | on | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 9:38PM8.11m | 9:57AM7.77m | 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 | ||||||||
Low Tide | 3:22PM0.78m | 3:44AM0.79m | 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 | ||||||||
 | |  |  | |  |  |  | | | |  | | | |  | |  | | | | |
 | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — |
mm | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | 1 | — | 14 | 5 | — | — |
Temp °C | 19 | 22 | 20 | 21 | 21 | 19 | 18 | 18 | 18 | 17 | 18 | 17 | 15 | 16 | 15 | 17 | 17 | 17 | 17 | 17 | 16 |
Feels °C | 16 | 20 | 17 | 18 | 18 | 18 | 16 | 15 | 14 | 12 | 12 | 12 | 10 | 12 | 12 | 14 | 14 | 16 | 16 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | — | W 15 | — | W 13 | W 13 | SW 13 | W 10 | W 10 | W 10 | WSW 5 | W 9 | W 9 | — | — | WSW 7 |
| kJ | 22 | 13 | 49 | 84 | 84 | 44 | — | 4 | — | 4 | 3 | 7 | 2 | 8 | 7 | 9 | 7 | 6 | — | — | 131 |
Swell 2 Height (m) Direction Period (s) | — | WSW 9 | — | — | — | — | — | — | — | — | — | — | S 13 | SW 12 | SW 12 | W 9 | SW 12 | SW 12 | — | — | — |
| kJ | — | 7 | — | — | — | — | — | — | — | — | — | — | 3 | 6 | 6 | 7 | 6 | 6 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 12 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SW 7 | SW 6 | SW 7 | WSW 8 | WSW 8 | W 7 | W 6 | WSW 6 | W 5 | — | WSW 5 | W 5 | W 5 | WSW 6 | — |
| kJ | — | — | — | — | — | — | 122 | 144 | 271 | 302 | 355 | 176 | 123 | 60 | 21 | — | 14 | 21 | 59 | 225 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 395 | 180 | 4 | 6 | 1 | 138 | 124 | 322 | 159 | 358 | 358 | 1 | 195 | 322 | 241 | 367 | 403 | 367 | 138 | 31 | 0 |
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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