Surf Forecasts:
Mewslade Bay surf forecast from 4 Sep 2026:
- Most powerful swell: Monday 7 Sep, 4PM (local time) - 7ft (2.1m), 13s period, WSW swell with 1,420 kJ wave energy.
Best Forecast Surf Conditions for Mewslade Bay this week:
The most powerful waves expected at Mewslade Bay in the next 16 days are 2.1m 13s and forecast to arrive on Monday (Sep 07) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Mon 7th Sep) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
G’day, I’m Rusty.
Look, if you’re hanging out for a wave at Mewslade Bay over the next couple of weeks, you’re going to need to be patient. It’s a pretty grim start, but there’s a couple of promising windows late in the game if you’re willing to wait.
We kick off Friday the 4th with a messy 7ft WSW swell, but a fresh 35 km/h cross wind from the WNW is just ruining it. Lumpy cross-chop, poor conditions – don’t waste your petrol. That rubbish settles a bit over the weekend into Monday the 7th, but still not worth a paddle.
Then on Monday morning the 7th, a proper groundswell rolls in – 6ft from the west with a long 13-second period. The wave energy is strong (1228), but the wind is still a moderate cross-shore, so it’s going to be a bit bumpy. It’s marked as marginal, so keep an eye on it, but don’t get too excited. The water is sitting at 67°, which is a full 6° warmer than normal – very unusual for this time of year.
The rest of that week stays average, with onshore winds and lumpy waves. Nothing special.
The real glimmer comes from Thursday the 17th. A morning session with a 5ft WSW swell, clean offshore winds from the NNE at 10 km/h, and the wave comment is “expect good surf conditions.” A light breeze, clean faces – that’s the one to circle. This break is exposed to the SW, and that swell direction matches the optimum. The combined energy is moderate (222), so it won't be a monster, but it’ll be clean and fun.
Friday the 18th morning also looks solid – 6ft from the west, clean offshore from the NNE at 10 km/h, and again “expect good surf conditions.” Slightly bigger, still clean. That’s your best wave of the whole outlook. It’s a touch over 5ft, so it might be a bit punchy for beginners, but intermediates will have a ball.
The Saturday the 19th morning goes glassy with a slight 4ft SW swell, but the energy is weak (151) and the wave comment is “surfable but very ordinary.” Good for a log if you’re desperate.
Overall, the first week is a write-off. Don’t bother until Thursday the 17th, and then Friday the 18th morning is the standout. Get on it.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Fri afternoon, light winds from the SSE by Sat night). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 14°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 | W 7 | W 7 | WSW 7 | WSW 9 | WSW 9 | WSW 6 | WSW 8 | W 13 | WSW 13 | WSW 8 | WSW 10 | WSW 7 | W 8 | W 7 | W 7 | W 6 | WSW 6 | WSW 7 | WSW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 416 | 269 | 89 | 91 | 86 | 62 | 57 | 123 | 1001 | 1420 | 636 | 692 | 371 | 459 | 352 | 217 | 94 | 162 | 342 | 303 |
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 | cross-on | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:16AM6.58m | 12:52PM6.37m | 1:38AM6.14m | 2:24PM6.19m | 3:16AM6.18m | 3:56PM6.54m | 4:36AM6.67m | 5:04PM7.20m | 5:34AM7.31m | 5:56PM7.89m | 6:21AM7.90m | 6:40PM8.44m | ||||||||
Low Tide | 5:45PM1.90m | 6:20AM2.24m | 7:06PM2.39m | 7:55AM2.58m | 8:54PM2.45m | 9:38AM2.39m | 10:25PM1.99m | 10:53AM1.83m | 11:27PM1.35m | 11:47AM1.20m | 00:15AM0.74m | 12:31PM0.65m | 00:56AM0.29m | |||||||
 |  |  | |  | | | | | |  |  | | | |  |  | | | | |
 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — |
 | 7:58 | — | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 1 | 1 | 1 | — | 2 | — | — | 1 |
Temp °C | 17 | 16 | 15 | 15 | 16 | 21 | 22 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 17 | 18 |
Feels °C | 11 | 11 | 13 | 13 | 14 | 17 | 20 | 16 | 11 | 12 | 11 | 9 | 9 | 10 | 9 | 10 | 12 | 11 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | W 7 | WSW 7 | WSW 9 | WSW 9 | WSW 6 | WSW 16 | W 13 | — | W 8 | — | — | — | — | — | W 8 | W 12 | W 11 | W 8 |
| kJ | 8 | 8 | 89 | 91 | 86 | 62 | 57 | 53 | 1001 | — | 355 | — | — | — | — | — | 12 | 3 | 3 | 245 |
Swell 2 Height (m) Direction Period (s) | — | W 16 | WSW 8 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | — | — | W 11 | — | — | — | — | — | — | — | W 11 | — |
| kJ | — | 5 | 57 | 7 | 7 | 7 | 6 | 6 | — | — | 251 | — | — | — | — | — | — | — | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | W 15 | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 8 | W 7 | — | — | — | SE 3 | — | WSW 8 | — | WSW 13 | WSW 8 | WSW 10 | WSW 7 | W 8 | W 7 | W 7 | W 6 | WSW 6 | WSW 7 | WSW 8 |
| kJ | 416 | 269 | — | — | — | 2 | — | 123 | — | 1420 | 636 | 692 | 371 | 459 | 352 | 217 | 94 | 162 | 342 | 303 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 127 | 322 | 31 | 0 | 104 | 6 | 46 | 172 | 68 | 33 | 135 | 33 | 615 | 322 | 322 | 365 | 321 | 378 | 124 | 135 |
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