Surf Forecasts:
Mewslade Bay surf forecast from 29 Aug 2026:
- Most powerful swell: Friday 4 Sep, 1AM (local time) - 10ft (3.0m), 9s period, W swell with 1,548 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 3.0m 9s and forecast to arrive on Friday (Sep 04) at 1AM. 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+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Fri 4th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let's have a look at what's on the cards for Mewslade Bay. I'm just going to focus on this one spot, so don't go comparing it to anywhere else.
First off, the water temp is sitting at 68°F right now, which is a whopping 6°F warmer than usual for this time of year. That's very unusual, makes the whole thing feel like a bit of a tropical getaway, which is a bonus.
Now, for the surf. Honestly, it's a grim picture for the next couple of weeks. We've got a long stretch of poor conditions ahead. The first recommendation doesn't really come through until the 30th of August, and even then, it's a write-off. The wind is howling from the south-southwest at 19 mph, onshore, with a risk of thunderstorms. The swell is there, 5 ft from the west-southwest, but it's useless. It's not worth paddling out for.
The next few days are more of the same. Monday the 31st of August has a bit more size, 8 ft from the west-southwest, but the wind is a fresh 22 mph from the west-northwest, cross-off. The energy is moderate (882), but the conditions are still marginal at best. The rest of the first week of September is a total washout with onshore winds and messy, lumpy seas. The swell sticks around, but the quality is just not there.
There's a big gap with no real recommendations. The next time we see something that could be worth a look is... well, the data doesn't really point to a standout. The 13th of September, a Sunday morning, has a 7 ft swell from the west-southwest with a long period of 12 seconds. That's a proper groundswell. The wind is from the north-west at 22 mph, giving us a cross-off breeze, which is clean. The energy is very strong (1168). That's a promising sign, but it's a long way off, so don't book your flights just yet. The afternoon of the same day is similar, with a 5 ft swell and a fresh north-west wind, keeping it clean, but the energy drops to 636 (moderate).
So, to be straight with you, there's nothing that screams "go now" in this 16-day window. There's a lot of poor surf and windy, messy conditions. The only real glimmer is that Sunday the 13th of September, which could be an interesting one for the more experienced crew, because that 7 ft swell is solid. But with the long period, it's going to be powerful and might be a bit much for the average punter. Keep an eye on it, but don't hold your breath.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Very mild (max 19°C on Sat afternoon, min 14°C on Mon morning). Winds increasing (light winds from the WSW on Sat afternoon, fresh winds from the SW by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Very mild (max 18°C on Wed morning, min 15°C on Thu night). Winds increasing (light winds from the SW on Tue night, strong winds from the SW by Wed morning). | |||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 7 | WSW 9 | WSW 9 | SW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | WSW 9 | WSW 8 | WSW 5 | SW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | W 9 | W 9 | W 8 | W 7 |
Wave Graph | ||||||||||||||||||||
147 | 435 | 288 | 398 | 715 | 882 | 577 | 276 | 137 | 125 | 49 | 229 | 637 | 475 | 388 | 514 | 1548 | 1040 | 619 | 251 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross | cross-off | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on |
High Tide | 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 | 10:51AM7.44m | 11:16PM7.20m | 11:43AM6.88m | 00:16AM6.58m | |||||||
Low Tide | 2:11AM0.34m | 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 | ||||||||
— | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | |
8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — | |
mm | — | 1 | 3 | 4 | 7 | — | — | — | 1 | — | 1 | 2 | 1 | 3 | — | — | — | — | — | — |
Temp °C | 19 | 17 | 18 | 17 | 17 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 17 | 17 |
Feels °C | 19 | 15 | 14 | 11 | 11 | 9 | 10 | 13 | 15 | 14 | 15 | 13 | 13 | 14 | 13 | 10 | 9 | 10 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 7 | WSW 9 | WSW 9 | WSW 8 | — | — | WSW 9 | WSW 10 | — | SW 18 | W 8 | W 16 | — | SW 15 | SW 15 | — | — | — | SW 15 | W 7 |
147 | 435 | 288 | 244 | — | — | 577 | 276 | — | 12 | 11 | 5 | — | 9 | 8 | — | — | — | 8 | 251 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 16 | — | — | — | — | — | — | — | — | SW 14 |
— | — | — | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | 8 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 16 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 7 | — | — | SW 8 | WSW 8 | WSW 9 | — | — | WSW 9 | WSW 8 | WSW 5 | SW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | W 9 | W 9 | W 8 | — |
93 | — | — | 398 | 715 | 882 | — | — | 137 | 125 | 49 | 229 | 637 | 475 | 388 | 514 | 1548 | 1040 | 619 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 31 | 33 | 379 | 418 | 33 | 358 | 33 | 31 | 124 | 124 | 148 | 903 | 311 | 365 | 603 | 358 | 358 | 419 | 33 | 82 |
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)
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.











