Surf Forecasts:
Mewslade Bay surf forecast from 27 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 7AM (local time) - 2.5ft (0.7m), 6s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 7AM (local time) - 8ft (2.4m), 10s period, WSW swell with 1,117 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 7AM (local time) - 2.5ft (0.7m), 6s 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 Wednesday (Sep 02) at 7AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.3m and 8s. Another secondary swell of 0.7m and 6s is also forecast. 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 2.4m 10s and forecast to arrive on Monday (Aug 31) at 7AM. 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 (Wed 2nd Sep) | 2.5ft (0.7m) 6s |
| Best Surf | 7AM (Wed 2nd Sep) | 2.5ft (0.7m) 6s |
| Most Powerful | 7AM (Mon 31st Aug) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright, Rusty here, looking at the next couple of weeks for Mewslade Bay.
First off, the water is proper warm, 68°F, which is a massive 6°F above normal for this time of year. That's unusual, you’d be in a spring suit and still sweating if the waves were any good. The problem is, for the next several days, it’s a write-off. We’ve got a run of poor surf with onshore winds and chop from Thursday the 27th right through to the end of the month. The swell is small and weak, under 20 (combined energy), so don't even bother paddling out. There’s a gap of no real recommendations until the end of the first week.
Things start to change on Monday the 31st. That morning we see a 7ft swell from the west with a 10-second period, and the combined energy jumps to a very strong 1928. That’s a lot of power, but it’s still a bit messy with the cross-shore wind. The score is still low because of questionable tide, so it’s a marginal call for a wave.
The real standout window looks to be Saturday the 5th of September. Saturday morning delivers a solid 10ft swell from the WSW, with an 8-second period and moderate energy (927). The wind is light from the WNW, almost offshore, so the surface will be clean. Now, at 10ft, this is big and for experts only. It’s also noted that the swell may be too big for this break, which makes it a heavy, serious session. Saturday afternoon calms down a little to a 7ft west swell, with a light east breeze giving clean, glassy conditions. That is the pick of the window for experienced surfers. There’s still plenty of energy (1105), and the wind is cross-offshore, so shape should be there.
For the rest of the second week, it's mostly a mixed bag with onshores or small, weak swell. Nothing else really stands out as a must-go. Monday the 7th has some size again, 8ft, but it's onshore and messy, so it's not a goer.
So to wrap it up, sit tight through this week. The target is Saturday the 5th of September, especially the afternoon session. It’s a powerful, clean swell for those who can handle it. Keep an eye on that one.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat morning. Very mild (max 19°C on Thu afternoon, min 16°C on Fri night). Winds increasing (light winds from the W on Thu afternoon, strong winds from the W by Sat afternoon). | Days 4-6 Weather SummaryHeavy rain (total 20mm), heaviest during Sun night. Very mild (max 18°C on Sun morning, min 13°C on Tue night). Winds decreasing (fresh winds from the SSW on Sun afternoon, light winds from the NW by Tue night). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 | SW 6 | SW 6 | WSW 7 | WSW 6 | SW 6 | SW 7 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 10 | WSW 10 | WSW 9 | WSW 6 | WSW 6 | WSW 5 | WSW 6 | WSW 5 | WSW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 4 | 33 | 137 | 222 | 132 | 213 | 112 | 497 | 311 | 411 | 713 | 967 | 529 | 409 | 123 | 64 | 39 | 34 | 21 | 83 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | cross | cross | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-on | on |
High Tide | 6:58PM7.78m | 7:15AM7.75m | 7:31PM8.20m | 7:48AM8.10m | 8:03PM8.47m | 8:20AM8.30m | 8:36PM8.58m | 8:54AM8.35m | 9:11PM8.50m | 9:30AM8.21m | 9:48PM8.23m | 10:08AM7.90m | 10:28PM7.78m | ||||||||
Low Tide | 12:49PM1.17m | 1:10AM0.90m | 1:21PM0.77m | 1:41AM0.55m | 1:52PM0.48m | 2:11AM0.34m | 2:22PM0.33m | 2:42AM0.28m | 2:54PM0.34m | 3:14AM0.38m | 3:28PM0.51m | 3:49AM0.66m | 4:06PM0.85m | ||||||||
 |  |  |  | |  | | |  |  | | | |  | | | |  | | | | |
 | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:04 | — | — | 8:01 | — |
mm | 2 | — | 3 | 2 | 1 | 4 | 11 | — | — | 3 | 5 | 6 | — | — | 2 | 1 | 1 | 2 | — | — | 2 |
Temp °C | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 18 | 17 | 16 | 17 | 17 | 16 | 17 | 17 | 17 | 15 | 17 | 18 |
Feels °C | 16 | 18 | 18 | 14 | 15 | 15 | 15 | 13 | 14 | 13 | 11 | 11 | 13 | 13 | 12 | 14 | 12 | 14 | 13 | 16 | 12 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | S 12 | — | — | — | SW 7 | WSW 9 | WSW 9 | — | — | WSW 10 | — | W 10 | WSW 6 | WSW 9 | WSW 5 | WSW 6 | W 7 | W 8 |
| kJ | 10 | 4 | 4 | 3 | — | — | — | 112 | 497 | 311 | — | — | 961 | — | 307 | 123 | 25 | 39 | 34 | 10 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 6 | ESE 3 | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | WSW 9 | SW 18 | WSW 8 | W 8 | SW 16 | SW 15 |
| kJ | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 28 | 12 | 19 | 5 | 10 | 9 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 7 | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | SW 16 | — | — |
| kJ | 6 | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 10 | — | — |
Wind waves Height (m) Direction Period (s) | ESE 3 | — | SW 6 | SW 6 | WSW 7 | WSW 6 | SW 6 | — | — | — | WSW 9 | WSW 8 | W 10 | WSW 10 | WSW 9 | — | WSW 6 | — | W 6 | WSW 5 | WSW 5 |
| kJ | 3 | — | 33 | 137 | 222 | 132 | 213 | — | — | — | 411 | 713 | 967 | 529 | 409 | — | 64 | — | 31 | 21 | 83 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 153 | 172 | 172 | 299 | 286 | 398 | 62 | 141 | 33 | 104 | 418 | 33 | 31 | 33 | 135 | 395 | 322 | 299 | 0 | 172 | 366 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mewslade Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest