Surf Forecasts:
Mewslade Bay surf forecast from 23 Jul 2026:
- Best quality surf: Sunday 26 Jul, 10PM (local time) - 3.5ft (1.1m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 4PM (local time) - 4.5ft (1.3m), 7s period, W swell with 148 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 10PM (local time) - 3.5ft (1.1m), 6s 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 Sunday (Jul 26) at 10PM. The primary swell is predicted to be 1.1m and 6s period. 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 1.3m 7s and forecast to arrive on Sunday (Jul 26) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 24) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 26th Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 10PM (Sun 26th Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 4PM (Sun 26th Jul) | 4.5ft (1.3m) 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 Mewslade Bay has in store for us over the next couple of weeks.
Alright, I’m gonna be straight with you – this is a tough one. The first week and a half is pretty much a write-off. We’ve got a long stretch of tiny, weak waves and messy wind. There’s a bit of a pulse showing up right at the end of the first week, but the wind is all wrong for it. It’s a real test of patience.
The water is running at 69°, which is much warmer than usual for this time of year – a proper anomaly of 8°, so you can leave the thickest rubber at home.
The first real chance of anything surfable doesn’t roll in until Saturday, 1st August. The morning sees a solid 8ft swell from the WSW, but it’s blown out by a cross-onshore breeze. The energy is moderate, sitting at 853. The afternoon, though? That’s where it gets interesting. The swell jumps to a whopping 10ft (WSW) with a combined energy of 1291, and the wind swings onshore. The model says the wind and tide are favorable, but honestly, the swell is too big for this break. This is expert-only territory, and even then, it’s a bit of a beast. Not a day for the casual surfer.
After that, it drops off again. The rest of the first week of August stays small and choppy. We get a few clean-ish mornings with light cross-off winds on 7th August, but the swell is only 2ft to 3ft from the SW, and the energy is weak (29 to 58).
So, for the standout? I’d have to say Saturday, 1st August afternoon is the only true standout on offer, but it’s for the big-wave crew only. The swell is massive and the wind is onshore, so it’s gonna be a wild, bumpy, and powerful session. If you’re not an expert, give it a wide berth.
For the rest of the window, it’s a waiting game. The forecast can change, but as it stands, bring a longboard and a lot of patience, or just go for a swim.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 15°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the WNW by Sun morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Tue afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun afternoon, calm by Mon night). | |||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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 14 | W 14 | SW 13 | SW 13 | WNW 3 | W 4 | W 4 | W 6 | W 6 | W 7 | W 6 | W 7 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | W 5 | W 5 | W 10 | W 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 4 | 4 | 7 | 7 | 2 | 6 | 31 | 81 | 137 | 148 | 74 | 56 | 39 | 11 | 6 | 5 | 5 | 4 | 8 | 8 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-on | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross-off |
High Tide | 2:29AM5.85m | 3:07PM5.83m | 3:44AM5.81m | 4:19PM5.96m | 4:51AM6.02m | 5:18PM6.29m | 5:43AM6.38m | 6:05PM6.72m | 6:26AM6.77m | 6:46PM7.16m | 7:04AM7.15m | 7:22PM7.55m | ||||||||
Low Tide | 8:09PM2.70m | 8:45AM2.76m | 9:24PM2.78m | 9:58AM2.73m | 10:35PM2.61m | 11:02AM2.48m | 11:32PM2.28m | 11:53AM2.12m | 00:19AM1.89m | 12:35PM1.72m | 00:58AM1.50m | 1:12PM1.35m | 1:34AM1.18m | |||||||
 |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — |
 | — | 9:19 | — | — | 9:17 | — | — | 9:15 | — | — | 9:15 | — | — | 9:13 | — | — | 9:12 | — | — | 9:10 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 17 | 18 | 22 | 18 | 17 | 17 | 17 | 18 | 19 | 17 | 15 | 17 | 16 | 20 | 22 | 22 | 19 | 23 | 21 |
Feels °C | 19 | 14 | 16 | 17 | 15 | 13 | 14 | 15 | 12 | 14 | 14 | 12 | 15 | 15 | 19 | 19 | 19 | 17 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | WNW 3 | W 8 | S 12 | — | — | — | W 6 | W 7 | — | WSW 6 | WSW 6 | WSW 5 | W 5 | W 5 | W 8 | W 4 |
| kJ | 1 | 1 | 1 | 1 | 2 | 1 | 3 | — | — | — | 74 | 56 | — | 11 | 6 | 5 | 5 | 4 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | W 14 | W 14 | — | SW 13 | W 8 | — | — | — | — | — | — | — | — | W 9 | W 8 | W 8 | W 8 | W 11 | W 10 | W 8 |
| kJ | 4 | 4 | — | 7 | 1 | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 2 | 8 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | W 11 | W 8 | — | W 10 |
| kJ | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 1 | — | 8 |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | — | — | N 3 | W 4 | W 4 | W 6 | W 6 | W 7 | — | — | WSW 6 | — | — | — | — | — | W 3 | NNW 3 |
| kJ | — | 2 | — | — | 1 | 6 | 31 | 81 | 137 | 148 | — | — | 39 | — | — | — | — | — | 5 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 847 | 378 | 406 | 894 | 435 | 896 | 395 | 432 | 358 | 370 | 1 | 180 | 195 | 81 | 125 | 180 | 125 | 180 | 181 | 181 |
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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