Surf Forecasts:
Mewslade Bay surf forecast from 14 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 1AM (local time) - 1ft (0.3m), 10s period, WSW swell with 20 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 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Jul 15) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Wed 15th Jul) | 1ft (0.3m) 10s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Let’s talk imperial, ‘cause I know some of you think in feet and miles.
Same story: Mewslade Bay has nothing on offer from Tuesday 14 July through Wednesday 29 July. Every session is poor. The water temperature on Tuesday morning is 69°F, which is 9°F warmer than normal – that’s a major anomaly for here.
Swell heights are tiny: 0.3ft to 1.0ft for the first week and a half. Periods are long (18 seconds, 14 seconds) but the height just isn’t there. Combined energy numbers are weak: 30, 15, 9 – nothing.
In the second week, heights creep up – 3ft on Saturday 25 July morning, 3ft on Monday 27 July morning – but the wind turns onshore or cross-shore, making it messy. The combined energy hits 267 on Monday morning, but with a fresh cross wind and lumpy chop, it’s not surfable.
Wednesday 29 July has 4ft swell (WSW, 9 seconds) but onshore wind and rain. Energy 260 – moderate to strong – but again, poor surf. This setup is more for kite surfers than paddle surfers.
No good options. Mewslade is a solid break, but this 16-day window is a bust. Keep an eye on it – forecasts change – but for now, don’t bother.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 18°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Fri afternoon, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 4 | W 11 | W 19 | W 10 | W 9 | W 18 | W 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 12 | 12 | 20 | 19 | 16 | 10 | 8 | 7 | 6 | 6 | 7 | 7 | 5 | 5 | 1 | 2 | 7 | 2 | 2 | 6 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | glassy | cross-off | off | cross | glassy | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 11:38PM7.27m | ||||||||
Low Tide | 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 | 5:22PM1.45m | ||||||||
 | |  | | | |  |  |  | | | | | | | | | | | | | |
 | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — |
 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 27 | 26 | 25 | 29 | 27 | 24 | 25 | 24 | 23 | 25 | 22 | 21 | 23 | 19 | 21 | 24 | 20 | 21 | 21 | 22 |
Feels °C | 22 | 24 | 23 | 25 | 26 | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 17 | 18 | 22 | 16 | 17 | 16 | 19 |
Swell 1 Height (m) Direction Period (s) | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | NW 4 | SSW 6 | W 8 | W 8 | W 8 | W 8 | WNW 4 | NNW 3 | — | NW 3 | W 9 | W 8 | W 8 |
| kJ | 10 | 12 | 20 | 19 | 16 | 8 | 5 | 7 | 4 | 4 | 5 | 5 | 5 | 5 | 1 | 1 | — | 2 | 2 | 1 | 5 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 14 | SW 16 | SW 7 | SW 6 | SW 14 | E 3 | W 8 | W 8 | SW 6 | SW 6 | — | SW 5 | W 8 | W 7 | W 7 | W 7 | — | W 18 | W 11 |
| kJ | 12 | 12 | 7 | 10 | 2 | 1 | 8 | 1 | 6 | 5 | 2 | 1 | — | 1 | 1 | 1 | 1 | 1 | — | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 14 | S 6 | SW 7 | SW 16 | SW 16 | W 10 | SW 7 | SW 7 | SW 12 | SW 13 | SW 13 | SW 6 | S 11 | — | W 11 | W 19 | W 10 | — | — | W 18 |
| kJ | 8 | 7 | 1 | 2 | 10 | 10 | 2 | 2 | 2 | 6 | 7 | 7 | 1 | 2 | — | 2 | 7 | 2 | — | — | 6 |
Wind waves Height (m) Direction Period (s) | E 4 | ESE 4 | E 4 | E 3 | E 3 | E 4 | E 2 | NE 3 | ENE 3 | E 3 | — | NW 3 | — | NW 2 | N 3 | — | — | NNE 2 | — | — | NNW 3 |
| kJ | 9 | 4 | 12 | 5 | 3 | 13 | 1 | 2 | 5 | 1 | — | 1 | — | 1 | 2 | — | — | 1 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 54 | 118 | 78 | 191 | 395 | 326 | 288 | 168 | 125 | 299 | 374 | 377 | 404 | 902 | 416 | 429 | 429 | 364 | 153 | 377 | 299 |
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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