Surf Forecasts:
Mewslade Bay surf forecast from 14 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 4AM (local time) - 1ft (0.3m), 10s period, WSW swell with 19 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 0.3m 10s and forecast to arrive on Wednesday (Jul 15) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Jul 15) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Wed 15th Jul) | 1ft (0.3m) 10s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what’s coming up for Mewslade Bay.
To be straight with you, the next week and a half is a write-off. We’re looking at flat, weak waves and mostly poor surf conditions right through until the 24th of July. The swell energy is tiny, with readings like 24, 30, or even just 3, which is barely a ripple. The water is a very warm 68°F, which is much warmer than normal for this time of year, but that’s about the only nice thing I can say. There’s a few glassy moments – like the morning of Friday the 17th and Sunday the 19th – but with swell heights of only 0.3ft to 1.0ft, it’s a lake session. You’d be better off with a kayak.
Then things get interesting. Around Friday the 24th of July, we finally see a pulse of life. A SW swell starts to push in, reaching 4ft to 4ft in the afternoon. That’s a proper size for Mewslade, but here’s the catch: the wind swings onshore and cross-onshore from the SW, making it choppy and messy. The swell energy climbs to a moderate 103, but the wind is ruining the party. Saturday the 25th and Sunday the 26th keep that same frustrating theme – some swell, but strong cross-onshore winds and even rain showers. The swell period is short, around 5 to 7 seconds, so it won’t have much push.
The standout window, if you can call it that, is the afternoon of the 24th of July. The swell is 4ft from the SW, which is the optimum direction for this exposed break, and the energy is moderate (103). It’s the biggest we’ll see, but it’s not clean. If you’re desperate, bring a grovel board and accept the chop. For the rest of the run, it’s a no-go for paddle surfing. With the strong winds and messy conditions, this setup looks more interesting for kite surfing than paddle surfing.
Keep an eye on the charts, but don’t get your hopes up for a clean wave until the wind co-operates.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 15°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Thu afternoon, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 19 | SW 15 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 7 | SW 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 19 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 8 | 12 | 12 | 10 | 19 | 16 | 16 | 8 | 8 | 9 | 7 | 7 | 5 | 5 | 5 | 5 | 2 | 2 | 7 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-off | glassy | cross | off | cross | cross | off | glassy | cross | cross-off | cross-off |
High Tide | 6:15PM7.91m | 6:43AM7.97m | 7:07PM8.37m | 7:34AM8.27m | 7:56PM8.68m | 8:21AM8.40m | 8:42PM8.78m | 9:06AM8.34m | 9:27PM8.66m | 9:50AM8.11m | 10:10PM8.34m | 10:33AM7.74m | 10:54PM7.85m | 11:17AM7.27m | |||||||
Low Tide | 00:29AM0.76m | 12:52PM0.68m | 1:22AM0.39m | 1:42PM0.41m | 2:11AM0.18m | 2:28PM0.29m | 2:57AM0.17m | 3:13PM0.36m | 3:41AM0.35m | 3:56PM0.60m | 4:24AM0.69m | 4:39PM0.98m | 5:07AM1.15m | ||||||||
 |  | |  | | | | | | | | | |  | | | | | | | | |
 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 |
 | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 23 | 23 | 28 | 27 | 24 | 29 | 27 | 24 | 26 | 26 | 21 | 26 | 24 | 22 | 23 | 19 | 20 | 23 | 20 | 23 |
Feels °C | 23 | 18 | 23 | 25 | 24 | 24 | 26 | 23 | 23 | 23 | 22 | 20 | 21 | 20 | 20 | 19 | 17 | 18 | 21 | 15 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 19 | W 12 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 7 | SW 7 | SSW 6 | NW 4 | W 8 | W 8 | W 8 | W 7 | — | W 8 | W 8 |
| kJ | 15 | 3 | 10 | 12 | 10 | 19 | 16 | 16 | 7 | 7 | 9 | 7 | 4 | 2 | 5 | 5 | 5 | 1 | — | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 18 | SW 18 | SW 14 | SW 16 | SW 7 | SW 6 | SW 14 | SW 6 | W 9 | W 8 | W 8 | W 8 | ESE 2 | SW 5 | S 11 | — | W 7 | W 19 | — |
| kJ | 8 | 8 | 12 | 12 | 7 | 10 | 2 | 1 | 8 | 1 | 6 | 5 | 5 | 5 | 1 | 1 | 3 | — | 1 | 7 | — |
Swell 3 Height (m) Direction Period (s) | W 8 | W 8 | SW 14 | SW 14 | S 6 | SW 7 | SW 16 | SW 16 | SW 6 | SW 14 | SW 15 | SW 12 | SW 13 | SW 6 | SW 6 | S 11 | — | W 9 | W 9 | — | — |
| kJ | 1 | 1 | 8 | 7 | 1 | 2 | 10 | 10 | 1 | 8 | 8 | 6 | 7 | 1 | 1 | 2 | — | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | E 3 | E 3 | E 4 | E 3 | E 3 | ESE 3 | E 3 | E 3 | E 3 | — | — | ENE 3 | — | — | NNW 3 | — | NE 2 | N 3 | — |
| kJ | 16 | 20 | 6 | 3 | 12 | 3 | 1 | 3 | 1 | 1 | 8 | — | — | 3 | — | — | 4 | — | 1 | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 168 | 158 | 54 | 118 | 118 | 125 | 383 | 180 | 299 | 167 | 78 | 125 | 767 | 384 | 384 | 429 | 364 | 387 | 465 | 367 | 367 |
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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