Surf Forecasts:
Mewslade Bay surf forecast from 30 Aug 2026:
- Best quality surf: Saturday 5 Sep, 10AM (local time) - 4.5ft (1.3m), 7s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 1PM (local time) - 10ft (3.0m), 8s period, W swell with 1,123 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 10AM (local time) - 4.5ft (1.3m), 7s period with W 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 Saturday (Sep 05) at 10AM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 1.2m and 7s. Another secondary swell of 0.3m and 11s 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 3.0m 8s and forecast to arrive on Friday (Sep 04) at 1PM. 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+) | 10AM (Sat 5th Sep) | 4.5ft (1.3m) 7s |
| Best Surf | 10AM (Sat 5th Sep) | 4.5ft (1.3m) 7s |
| Most Powerful | 1PM (Fri 4th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s talk surf for the Gower in feet and miles per hour.
Right now, the scene at Mewslade Bay is a slow burner. The first week is mostly junk, with a lot of wind and lumpy conditions. You gotta dig through the trash to find a couple of clean windows. The water is running way warmer than usual for the season – a full 6°F anomaly – so the water temp is about 68°F. That’s a real treat if you’re paddling out.
From the start, it’s a mess. Sunday the 30th has a risk of thunderstorms and a strong onshore wind blowing 19 mph. The swell is a messy 5ft, but the wind is on it like a dirty shirt. The wave energy is moderate (535), but it’s not surfable. That onshore pattern sticks through Tuesday, with cross-onshore chop ruining anything with size. On Friday the 4th of September, there’s a big 10ft west swell with strong energy (1081), but the wind is cross-shore at 22 mph, turning it into a chunky, lumpy mess. That’s a kite-surfing day, not a paddling day.
Your first real chance comes on the morning of Saturday the 5th of September. The wind swings around to the northwest at a light 6 mph, blowing cross-offshore. That cleans up a 4ft west swell perfectly. It’s glassy and lined up. That’s your go-to.
After that, it flat-lines for a few days. The next good look is the morning of Tuesday the 8th of September. A tiny 3ft west-southwest swell with a light cross-offshore breeze from the north-northwest makes it a clean, small-wave session. The energy is weak (208), so it’s longboard territory.
The standout in this whole forecast is without a doubt Saturday the 5th of September morning. A clean 4ft swell with a light, offshore wind. The period is short (7 seconds), so it’s a bit of a windswell, but with the offshore breeze, it’ll shape up alright on the banks. Mewslade can handle a crowd when it’s clean, so expect some company. The rest of the run into the second week is tiny or blown out. Pick your moment wisely.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Sun afternoon. Very mild (max 18°C on Sun morning, min 14°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Thu night. Very mild (max 18°C on Wed morning, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Wed morning, moderate winds from the NW by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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 | SW 7 | WSW 8 | W 9 | WSW 10 | WSW 10 | WSW 9 | WSW 6 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | W 7 | W 8 | W 8 | W 8 | W 7 | WSW 6 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 338 | 362 | 665 | 792 | 618 | 276 | 137 | 66 | 53 | 356 | 449 | 410 | 257 | 277 | 467 | 1081 | 925 | 413 | 154 | 53 | 32 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-on | glassy |
High Tide | 8:36PM8.58m | 8:54AM8.35m | 9:11PM8.50m | 9:30AM8.21m | 9:48PM8.23m | 10:08AM7.90m | 10:28PM7.78m | 10:51AM7.44m | 11:16PM7.20m | 11:43AM6.88m | 00:16AM6.58m | 12:52PM6.37m | 1:38AM6.14m | ||||||||
Low Tide | 2:22PM0.33m | 2:42AM0.28m | 2:54PM0.34m | 3:14AM0.38m | 3:28PM0.51m | 3:49AM0.66m | 4:06PM0.85m | 4:28AM1.10m | 4:49PM1.33m | 5:16AM1.67m | 5:45PM1.90m | 6:20AM2.24m | 7:06PM2.39m | ||||||||
 | |  |  | |  |  | |  |  |  | | | |  | | |  | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 8:08 | — | — | 8:07 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — | — | 7:54 | — |
mm | 3 | 7 | 7 | — | — | — | — | — | 1 | 1 | — | — | — | — | 10 | — | — | — | — | — | — |
Temp °C | 18 | 17 | 17 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 16 | 15 | 15 | 14 |
Feels °C | 14 | 12 | 11 | 9 | 11 | 13 | 13 | 14 | 14 | 13 | 14 | 14 | 15 | 14 | 13 | 10 | 12 | 9 | 13 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | — | — | — | — | WSW 10 | — | SW 18 | W 8 | W 16 | — | W 15 | SW 15 | SW 15 | W 12 | — | — | W 11 | W 7 | W 10 | WSW 6 |
| kJ | 197 | — | — | — | — | 276 | — | 12 | 11 | 5 | — | 4 | 8 | 9 | 27 | — | — | 9 | 134 | 18 | 32 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 16 | — | — | — | SW 15 | — | — | — | — | SW 14 | WSW 11 | SW 13 | W 10 |
| kJ | — | — | — | — | — | — | — | — | 10 | — | — | — | 8 | — | — | — | — | 8 | 22 | 7 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 13 | SW 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | WSW 9 | SW 7 | WSW 8 | W 9 | WSW 10 | — | WSW 9 | WSW 6 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | W 7 | W 8 | W 8 | W 8 | W 7 | WSW 6 | — |
| kJ | 338 | 362 | 665 | 792 | 618 | — | 137 | 66 | 53 | 356 | 449 | 410 | 257 | 277 | 467 | 1081 | 925 | 413 | 154 | 53 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 286 | 377 | 33 | 126 | 33 | 64 | 124 | 172 | 124 | 322 | 415 | 260 | 124 | 124 | 311 | 358 | 358 | 154 | 0 | 181 | 4 |
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