Surf Forecasts:
Mewslade Bay surf forecast from 1 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 1AM (local time) - 2.5ft (0.7m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 4.5ft (1.4m), 7s period, SW swell with 211 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 1AM (local time) - 2.5ft (0.7m), 8s 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 Tuesday (Aug 04) at 1AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.2m and 2s. 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 1.4m 7s and forecast to arrive on Wednesday (Aug 05) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 02) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 4th Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 1AM (Tue 4th Aug) | 2.5ft (0.7m) 8s |
| Most Powerful | 7PM (Wed 5th Aug) | 4.5ft (1.4m) 7s |
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 on the cards for this stretch of coast.
Right off the bat, I gotta be straight with you – it’s a quiet run. We’re looking at a solid gap of poor conditions right through the start of the period. For the first few days, there’s just nothing to get excited about. The swell is tiny, mostly around 1ft to 1ft, with weak energy (37), and the wind is all over the shop. It’s a real waiting game.
The first real flicker of hope comes on Thursday the 6th. The morning session at Mewslade Bay is the first time we see anything surfable, with a clean 4ft WSW swell. The wind is light and offshore-ish from the NW, so it’s tidy. The energy is still moderate (131), but it’s the best we’ve seen. The waves are short-period (7 seconds), so it’s a bit crumbly, but at least you can get a few. The water temp is about average for the time of year, nothing wild there.
After that, it gets messy again. A few glassy moments on the 7th and 8th, but the swell is either non-existent or too small to bother with. The 9th has a clean morning with a tiny 0.7ft swell and offshore wind, but honestly, it’s a knee-slapper. You’d be better off waiting.
Now, if you’ve got patience, there’s a potential standout brewing. Into the second week, around Tuesday the 11th and Wednesday the 12th, the swell picks up. We’re looking at 3ft to 4ft from the WSW, with moderate energy (277 on the 11th afternoon). The catch? The wind is mostly cross-on or onshore, so it’s not going to be clean. It’s a bit of a messy, choppy proposition. The swell period is a bit better, around 9 to 10 seconds, so it’ll have a bit more push. It’s a long way out, so treat that as a promising but uncertain option.
Honestly, for this stretch, Thursday the 6th morning is your best bet. It’s the only window that’s genuinely clean and has a bit of size. After that, it’s a lot of wind and chop. The crowd factor at Mewslade Bay can be an issue sometimes, but with this forecast, you’ll likely have it to yourself.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 8 | WSW 7 | SW 6 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | SW 6 | WSW 6 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 27 | 24 | 22 | 13 | 50 | 86 | 80 | 59 | 28 | 96 | 116 | 111 | 189 | 178 | 125 | 64 | 21 | 8 | 6 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | off | cross | glassy | off | cross | cross | cross-off | on | cross-on | on | on | cross-on | cross-off | cross-off | cross-on | cross-off | cross | glassy | off |
High Tide | 8:47AM7.83m | 9:04PM8.16m | 9:21AM7.85m | 9:38PM8.11m | 9:57AM7.77m | 10:15PM7.93m | 10:35AM7.56m | 10:55PM7.62m | 11:18AM7.25m | 11:41PM7.22m | 12:09PM6.87m | 00:38AM6.78m | 1:13PM6.52m | 1:52AM6.45m | |||||||
Low Tide | 2:50PM0.77m | 3:11AM0.73m | 3:22PM0.78m | 3:44AM0.79m | 3:56PM0.90m | 4:18AM0.96m | 4:33PM1.13m | 4:58AM1.24m | 5:17PM1.45m | 5:45AM1.61m | 6:11PM1.84m | 6:46AM2.01m | 7:22PM2.17m | ||||||||
 |  |  | | | | | | |  | | | | |  | | | | | | | |
 | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — |
 | — | — | 9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 18 | 23 | 20 | 20 | 21 | 19 | 19 | 20 | 19 | 20 | 18 | 17 | 16 | 17 | 17 | 15 | 18 | 18 |
Feels °C | 12 | 11 | 13 | 15 | 19 | 17 | 17 | 18 | 16 | 18 | 18 | 16 | 17 | 15 | 14 | 12 | 13 | 13 | 13 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 8 | W 9 | — | SW 13 | W 13 | SW 13 | WSW 7 | WSW 6 | WSW 6 | SW 6 | WSW 6 | SW 7 |
| kJ | 18 | 27 | 24 | 22 | 13 | 50 | 86 | 80 | 59 | 28 | 2 | — | 7 | 3 | 7 | 125 | 64 | 21 | 8 | 3 | 13 |
Swell 2 Height (m) Direction Period (s) | WSW 10 | — | WNW 4 | — | WSW 9 | NNW 3 | — | — | WNW 2 | W 9 | W 15 | — | — | — | — | SW 13 | W 10 | W 10 | W 9 | W 9 | SW 12 |
| kJ | 19 | — | 3 | — | 7 | 1 | — | — | 1 | 7 | 4 | — | — | — | — | 6 | 2 | 8 | 7 | 2 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | SW 12 | SW 12 | SW 12 | SW 12 | W 9 |
| kJ | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | 6 | 6 | 2 |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | — | — | NNE 3 | — | — | — | — | WSW 7 | SW 6 | SW 7 | SW 7 | WSW 7 | — | — | — | ESE 2 | E 3 | — |
| kJ | — | 10 | — | — | — | 2 | — | — | — | — | 96 | 116 | 111 | 189 | 178 | — | — | — | 1 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 181 | 195 | 191 | 191 | 180 | 4 | 6 | 1 | 0 | 172 | 322 | 322 | 141 | 141 | 1 | 0 | 168 | 180 | 384 | 384 | 54 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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