Surf Forecasts:
Mewslade Bay surf forecast from 24 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 10PM (local time) - 4.5ft (1.3m), 10s period, SW swell with 324 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 1.3m 10s and forecast to arrive on Thursday (Aug 27) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Thu 27th Aug) | 4.5ft (1.3m) 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 coming up for Mewslade Bay over the next couple of weeks.
To be honest, it’s a pretty grim run for the most part. We’re looking at a long stretch of poor surf, with very little on offer for the next week or so. The water is sitting at 68°, which is a solid 7° warmer than usual for this time of year – that’s a real anomaly, makes you feel like you’re surfing in a bath.
The first session that even gets a sniff of a chance is Thursday the 27th of August, but it’s a marginal call. You’ve got a 4ft swell from the SW with a period of 8 seconds, and the combined energy is moderate at 330. The wind is a light cross-onshore, so it’s going to be a bit bumpy. It’s not going to be pretty, but it might be the best you’ll get for a while.
The next real glimmer of hope doesn’t show up until Thursday the 3rd of September. Early morning looks clean with a gentle cross-offshore breeze from the NW. The swell is 5ft from the WSW, period of 8 seconds, and the energy is moderate at 241. It’s a marginal forecast, but those clean conditions are a major positive. That’s the standout of the whole outlook, but it’s still a gamble.
From there, the swell picks up significantly. Saturday the 5th of September sees a 7ft SW swell, but it’s blowing 22 mph onshore, making it a total mess. That’s only for experts who don’t mind a beating, and I’d say it looks more interesting for a kite surfer than a paddle surfer.
Sunday the 6th of September actually has some decent size – 8ft from the W with a period of 8 seconds and a very strong energy reading of 712. The morning shows a clean offshore breeze from the NE. That’s a solid swell, but it’s right on the edge for beginners. If you’re an experienced surfer, that Sunday morning (6th September) is the closest thing to a proper session we’ve got in this whole forecast. The swell is a bit too straight for the beach break, but with that clean wind, it’s worth a look.
The rest of the run is a write-off with strong winds, chop, and onshore drivel. Don’t get your hopes up for the second week. It’s a long, lean spell, but that’s how it goes sometimes.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue afternoon, min 15°C on Sun night). Winds decreasing (fresh winds from the E on Mon morning, calm by Wed afternoon). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Sat afternoon. Warm (max 20°C on Wed night, min 15°C on Sat afternoon). Winds increasing (light winds from the WNW on Thu night, fresh winds from the WSW by Sat afternoon). | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | SW 9 | W 9 | W 9 | W 8 | W 8 | W 10 | W 9 | W 8 | W 8 | W 7 | SW 12 | SW 10 | SW 5 | WSW 6 | W 6 | WSW 7 | WSW 6 | SW 7 | SW 8 | SW 8 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 7 | 7 | 7 | 5 | 17 | 13 | 12 | 10 | 9 | 193 | 235 | 124 | 176 | 158 | 96 | 77 | 14 | 64 | 164 | 233 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:30AM5.72m | 4:59PM6.09m | 5:25AM6.23m | 5:45PM6.67m | 6:06AM6.78m | 6:23PM7.25m | 6:42AM7.30m | 6:58PM7.78m | 7:15AM7.75m | 7:31PM8.20m | 7:48AM8.10m | 8:03PM8.47m | 8:20AM8.30m | 8:36PM8.58m | |||||||
Low Tide | 10:45AM2.71m | 11:17PM2.42m | 11:36AM2.19m | 00:01AM1.88m | 12:15PM1.66m | 00:37AM1.35m | 12:49PM1.17m | 1:10AM0.90m | 1:21PM0.77m | 1:41AM0.55m | 1:52PM0.48m | 2:11AM0.34m | 2:22PM0.33m | 2:42AM0.28m | |||||||
 |  |  |  | | | | |  | | | | | | | |  | |  | | | |
 | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — |
mm | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | 2 | — | 7 | 4 | 1 | 1 | 3 |
Temp °C | 20 | 24 | 20 | 21 | 25 | 20 | 19 | 21 | 20 | 18 | 19 | 17 | 18 | 18 | 17 | 17 | 18 | 18 | 17 | 17 | 17 |
Feels °C | 14 | 20 | 14 | 18 | 22 | 19 | 19 | 21 | 19 | 16 | 18 | 16 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 9 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 9 | W 9 | W 9 | W 8 | SW 8 | W 10 | W 9 | W 8 | W 8 | W 7 | SW 12 | SW 10 | W 9 | — | — | — | — | W 5 | SW 8 | W 12 | W 10 |
| kJ | 14 | 6 | 6 | 5 | 3 | 17 | 13 | 12 | 10 | 9 | 193 | 235 | 6 | — | — | — | — | 14 | 64 | 3 | 18 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 9 | SW 13 | SW 13 | W 8 | SSW 8 | SSW 8 | SSW 7 | SW 7 | SW 7 | W 7 | — | — | — | — | — | — | SW 7 | SW 8 | — | — |
| kJ | 8 | 3 | 7 | 7 | 5 | 7 | 6 | 5 | 2 | 2 | 4 | — | — | — | — | — | — | 11 | 11 | — | — |
Swell 3 Height (m) Direction Period (s) | W 9 | SW 14 | SW 9 | SW 8 | W 10 | — | SW 13 | — | — | SW 12 | — | W 7 | — | — | — | — | — | — | W 5 | — | — |
| kJ | 2 | 7 | 3 | 3 | 2 | — | 6 | — | — | 6 | — | 1 | — | — | — | — | — | — | 2 | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 4 | E 4 | E 4 | E 4 | — | — | — | SE 3 | SSW 5 | SW 4 | — | SW 5 | WSW 6 | W 6 | WSW 7 | WSW 6 | — | — | SW 8 | SW 7 |
| kJ | 7 | 10 | 27 | 18 | 9 | — | — | — | 2 | 9 | 15 | — | 124 | 176 | 158 | 96 | 77 | — | — | 164 | 233 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 54 | 377 | 321 | 270 | 125 | 322 | 4 | 4 | 78 | 299 | 6 | 1 | 0 | 135 | 135 | 10 | 299 | 311 | 95 | 4 | 126 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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