Surf Forecasts:
Mewslade Bay surf forecast from 11 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 1.3m 5s period and expected on Monday (Jul 13) 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.
Alright folks, Rusty here. Let’s break down what Mewslade Bay has in store for the next couple of weeks.
Straight up, I’ll be honest – it’s a rough start. The first week is a total dud, with no real surf to speak of until the 20th of July. That’s a long gap of flat, poor conditions.
The first real chance to paddle out comes Monday morning, the 20th of July. We’re looking at a small, clean 3 ft swell from the west. The wind is a light cross-off from the ENE at 9 mph, so the surface will be nice and tidy. The wave energy is weak (77), so it’s a longboard kind of day. The water temp is a remarkable 67°F, which is a whopping 8°F warmer than usual for this time of year – incredibly unusual, so you can leave the thick wetsuit at home. It’s surfable, but nothing to write home about.
The only real standout comes on the 26th of July, a Sunday morning. That’s when we get a proper bump of energy. A 5 ft west swell rolls in, pushing the combined energy to a solid 250 – finally some moderate power. The wind is light from the ESE at 3 mph, giving us a glassy cross-shore. This is the best on offer, but it’s over a week out, so keep expectations in check. Anything over 5 ft is getting a bit much for beginners, and with a short period of 7 seconds, it’ll be a bit lumpy and dumpy on the beach break.
The rest of the time, it’s small, weak, and often onshore. For the first week, the wind is stronger than the surf, so it might be more interesting for kite surfers than paddle surfers.
Keep it salty,
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Sun afternoon, min 15°C on Mon night). Winds increasing (calm on Sat afternoon, fresh winds from the ENE by Sun night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Warm (max 32°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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) | WSW 8 | WSW 8 | W 8 | W 21 | W 16 | SW 20 | SW 19 | SW 15 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | SW 7 | SW 7 | SW 6 | SW 7 | SW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 6 | 10 | 10 | 5 | 15 | 15 | 8 | 12 | 12 | 10 | 19 | 16 | 16 | 8 | 8 | 8 | 6 | 7 | 15 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | glassy | cross-on | cross-on | on | cross-on | cross-on | on |
High Tide | 4:12PM6.95m | 4:45AM7.15m | 5:17PM7.41m | 5:48AM7.57m | 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 | |||||||
Low Tide | 10:24PM1.63m | 10:57AM1.45m | 11:30PM1.21m | 11:58AM1.06m | 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 | ||||||||
 |  | |  |  | | | | | |  |  |  |  |  | | | | | | | |
 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 |
 | — | 9:31 | — | — | 9:30 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | 9:24 |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 26 | 31 | 25 | 24 | 28 | 24 | 24 | 31 | 27 | 26 | 32 | 25 | 22 | 21 | 22 | 18 | 19 | 18 | 17 |
Feels °C | 27 | 25 | 24 | 27 | 18 | 19 | 25 | 18 | 23 | 27 | 24 | 24 | 30 | 25 | 22 | 20 | 22 | 18 | 17 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | SW 20 | SW 19 | W 12 | W 11 | WSW 11 | WSW 10 | WSW 10 | ESE 4 | ESE 3 | WSW 8 | SW 7 | SW 7 | SW 6 | SW 7 | SW 6 | SW 6 |
| kJ | 13 | 6 | 5 | 1 | 1 | 15 | 15 | 3 | 10 | 12 | 10 | 19 | 16 | 2 | 7 | 8 | 7 | 6 | 7 | 15 | 6 |
Swell 2 Height (m) Direction Period (s) | E 3 | — | SW 16 | SW 16 | W 16 | SW 15 | SW 15 | SW 15 | SW 18 | SW 18 | SW 14 | SW 16 | WSW 9 | WSW 9 | SW 14 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 |
| kJ | 1 | — | 10 | 10 | 5 | 8 | 8 | 8 | 12 | 12 | 7 | 10 | 16 | 16 | 8 | 7 | 7 | 6 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | W 17 | — | W 16 | W 21 | — | W 8 | W 8 | W 8 | SW 14 | SW 7 | S 6 | SW 7 | SW 7 | SSW 3 | SW 6 | — | SW 15 | SW 12 | SW 13 | SW 13 | W 13 |
| kJ | 6 | — | 5 | 9 | — | 1 | 1 | 1 | 8 | 2 | 1 | 2 | 2 | 1 | 1 | — | 8 | 6 | 6 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | — | E 3 | E 3 | E 4 | E 5 | E 5 | E 4 | E 4 | E 3 | E 3 | ESE 3 | E 4 | — | SE 3 | ESE 3 | — | — | — | SW 3 | — | — |
| kJ | — | 5 | 5 | 14 | 60 | 60 | 21 | 28 | 6 | 3 | 1 | 12 | — | 3 | 1 | — | — | — | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 130 | 78 | 403 | 204 | 385 | 419 | 132 | 118 | 54 | 78 | 118 | 125 | 168 | 122 | 54 | 172 | 139 | 299 | 299 | 299 | 419 |
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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