Surf Forecasts:
Mewslade Bay surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 13 Aug, 1AM (local time) - 3.5ft (1.0m), 9s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 7AM (local time) - 3.5ft (1.0m), 10s period, WSW swell with 193 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 1AM (local time) - 3.5ft (1.0m), 9s 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 Thursday (Aug 13) at 1AM. The primary swell is predicted to be 1.0m and 9s 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 1.0m 10s and forecast to arrive on Thursday (Aug 13) at 7AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Monday (Aug 10) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 13th Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 1AM (Thu 13th Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 7AM (Thu 13th Aug) | 3.5ft (1.0m) 10s |
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’s cookin’ for Mewslade Bay over the next couple of weeks.
I gotta be straight with you – this is a tough stretch. The forecast is showing a long, dry spell with barely a ripple. For the first week, from the 6th of August right through to the 12th, there’s just nothing doing. We’re talking flat, tiny dribble, and the wind is all wrong, mostly cross-shore or onshore. It’s a real bummer, a proper gap with no surf to speak of. You’d be better off takin’ a walk along the cliffs.
Things start to show a tiny pulse of life around Thursday the 13th of August. We’ve got a WSW swell creepin’ in at 3ft, with a period of 10 seconds. The combined energy is a modest 193, which is weak to moderate, but it’s something. The real kicker is the morning – glassy conditions with a light SSW wind. That’s clean. The wave comment says “surfable waves but very ordinary conditions,” and I’d agree. It’s not going to be a classic, but it’s the only window with a hint of quality. The swell is small, so it’s fine for beginners and intermediates.
After that, the 15th and 16th of August see a bit more push in the swell, with heights up to 4ft, but the wind turns sour again. The afternoon of the 15th has a 4ft WSW swell, 8-second period, and moderate energy of 172, but it’s accompanied by a fresh cross-onshore breeze that’ll chop it up. The 16th is similar – onshore wind and messy. Not worth paddlin’ out for.
The end of the run, around the 17th to the 21st, is back to small, weak swells, but we get some clean mornings with cross-offshore winds from the N and NNW. The 17th and 18th of August mornings have 2ft to 2ft of swell with clean conditions, but the energy is pitiful, between 27 and 53. It’s dribbly, but if you’re desperate for a float on a log, you might find a ripple.
Honestly, if you’re lookin’ for the one standout, it’s the morning of Thursday the 13th of August. That’s your best bet – glassy, clean, and just enough swell to get a few fun ones. It’s not a day to call in sick for, but it’s the only real chance in this quiet stretch.
Stay patient, and keep an eye on the charts. Forecasts can change. This is Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 13°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 6 | WSW 6 | WSW 5 | W 9 | W 9 | W 9 | W 9 | W 9 | SW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 8 | W 10 | WSW 11 | WSW 10 | WSW 9 | WSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 76 | 43 | 9 | 7 | 7 | 6 | 2 | 2 | 13 | 18 | 15 | 4 | 8 | 14 | 4 | 5 | 7 | 24 | 77 | 149 | 169 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | on | cross-on | cross-off | glassy | cross | cross-off | cross-off | cross | cross-off | glassy | cross-on | cross-off | cross | cross | cross-off | on | cross-on | cross-off |
High Tide | 12:09PM6.87m | 00:38AM6.78m | 1:13PM6.52m | 1:52AM6.45m | 2:35PM6.38m | 3:19AM6.43m | 3:59PM6.64m | 4:38AM6.79m | 5:10PM7.20m | 5:42AM7.35m | 6:08PM7.85m | 6:35AM7.89m | 6:57PM8.42m | ||||||||
Low Tide | 5:45AM1.61m | 6:11PM1.84m | 6:46AM2.01m | 7:22PM2.17m | 8:06AM2.27m | 8:52PM2.25m | 9:36AM2.19m | 10:20PM1.94m | 10:54AM1.77m | 11:30PM1.39m | 11:55AM1.22m | 00:26AM0.80m | 12:45PM0.69m | 1:13AM0.33m | |||||||
 | |  | | | | | | | | | | | | | | |  |  |  | | |
 | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 19 | 18 | 20 | 24 | 21 | 24 | 27 | 23 | 21 | 22 | 19 | 20 | 21 | 20 |
Feels °C | 12 | 11 | 12 | 14 | 13 | 14 | 15 | 15 | 15 | 16 | 20 | 17 | 21 | 22 | 20 | 19 | 19 | 17 | 19 | 20 | 22 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 10 | WSW 5 | WSW 5 | W 9 | W 4 | W 4 | W 4 | SW 7 | WSW 7 | SW 12 | WSW 6 | WSW 6 | W 8 | WSW 6 | WSW 6 | WSW 6 | WSW 11 | WSW 10 | WSW 9 | WSW 9 |
| kJ | 76 | 8 | 9 | 4 | 6 | 3 | 1 | 1 | 13 | 18 | 6 | 4 | 8 | 1 | 4 | 4 | 4 | 24 | 77 | 149 | 169 |
Swell 2 Height (m) Direction Period (s) | W 10 | SW 12 | W 10 | W 9 | SW 12 | W 9 | W 9 | SW 8 | — | SW 12 | W 8 | W 8 | W 8 | — | W 8 | W 8 | W 10 | SW 6 | SW 6 | — | — |
| kJ | 2 | 6 | 7 | 7 | 6 | 6 | 2 | 2 | — | 6 | 1 | 1 | 1 | — | 1 | 5 | 7 | 2 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | SW 13 | — | SW 12 | SW 6 | — | SW 12 | W 8 | W 9 | W 9 | — | — | S 12 | — | W 11 | W 11 | W 10 | — | W 8 | — | — | — |
| kJ | 7 | — | 6 | 1 | — | 5 | 1 | 2 | 2 | — | — | 3 | — | 2 | 2 | 2 | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | — | — | WSW 4 | — | — | — | — | — | WSW 6 | WNW 3 | — | WSW 6 | NW 4 | — | — | — | — | — | WNW 3 |
| kJ | — | 43 | — | — | 7 | — | — | — | — | — | 15 | 2 | — | 14 | 4 | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 195 | 387 | 387 | 367 | 395 | 378 | 358 | 180 | 180 | 358 | 180 | 358 | 195 | 395 | 377 | 384 | 347 | 172 | 76 | 172 | 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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