Surf Forecasts:
Mewslade Bay surf forecast from 29 Jul 2026:
- Most powerful swell: Thursday 30 Jul, 7AM (local time) - 2.5ft (0.8m), 6s period, W swell with 38 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 0.8m 6s and forecast to arrive on Thursday (Jul 30) at 7AM. 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 Tuesday (Aug 04) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Thu 30th Jul) | 2.5ft (0.8m) 6s |
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 cookin’ for Mewslade Bay over the next couple of weeks.
To be straight with you, the next week and a half is a bust. We’re talking a long, flat stretch from Wednesday the 29th of July right through to Sunday the 9th of August. The swell is tiny, mostly 2ft to 2ft, with some weak windswell sloshing around. The combined swell energy is pathetic, barely cracking 40 (16 to 44) for most of that time. The wind is a mess too – cross-on, cross-shore, and a few clean windows, but there’s just no wave to push you around. The water is a balmy 68°F, which is a whopping 7°F warmer than normal – that’s very unusual for this time of year, feels like a warm bath.
The only glimmer comes on the morning of Friday the 7th of August. Swell jumps to 6ft from the WSW with a period of 8 seconds, and the combined energy hits a moderate 423. The wind is a gentle cross-shore, so it’ll be a bit lumpy, but it’s the biggest wave we’ve seen in a while. It’s still only a marginal call, and the afternoon goes to crap with cross-onshore choppy mess. Saturday the 8th of August is the better bet. The morning is still a bit marginal at 5ft, but the afternoon cleans right up with a light cross-off breeze from the east. The swell holds at 5ft from the WSW, energy at 257, and it’ll be clean. That’s your window.
Then we get a good one on the morning of Tuesday the 11th of August. Swell is 4ft from the WSW, with an 8-second period, and the energy is pumping at 362. The wind is light offshore from the north, so it’ll be glassy and clean. That’s the standout morning of the whole forecast. The afternoon gets a bit howling, but the morning session is dialled.
Crowds are a possibility out here, as it’s ‘sometimes’ busy, but with a clean offshore and a solid 4ft, it’s worth the paddle. The combined energy of all swells directed here is 362, which is moderate wave energy. It’s a bit short-period for a groundswell, but the offshore wind will make it fun.
For the rest of the second week, it’s small again. A few glassy mornings on the 10th and 13th, but the swell is back down to 3ft and 2ft. Nothing to write home about. The only real bite is that Tuesday morning the 11th - that’s the one to circle.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Wed morning, min 13°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun afternoon, min 14°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the E by Mon night). | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 5 | W 4 | W 5 | W 5 | W 5 | W 5 | W 5 | WSW 11 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 10 | WSW 8 | WSW 8 | WSW 8 | SW 8 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 14 | 14 | 27 | 21 | 11 | 18 | 29 | 12 | 21 | 27 | 24 | 22 | 22 | 18 | 28 | 28 | 27 | 16 | 14 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross | glassy | cross-off | cross | cross | cross | cross | cross-off | glassy | cross | off | cross-off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:22PM7.55m | 7:40AM7.47m | 7:57PM7.87m | 8:14AM7.70m | 8:30PM8.07m | 8:47AM7.83m | 9:04PM8.16m | 9:21AM7.85m | 9:38PM8.11m | 9:57AM7.77m | 10:15PM7.93m | 10:35AM7.56m | 10:55PM7.62m | ||||||||
Low Tide | 1:12PM1.35m | 1:34AM1.18m | 1:46PM1.06m | 2:08AM0.93m | 2:18PM0.86m | 2:40AM0.78m | 2:50PM0.77m | 3:11AM0.73m | 3:22PM0.78m | 3:44AM0.79m | 3:56PM0.90m | 4:18AM0.96m | 4:33PM1.13m | ||||||||
 |  |  |  | |  | | | | | |  | | | | | | |  | |  | |
 | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — |
 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 1 |
Temp °C | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 20 | 18 | 16 | 20 | 19 | 17 | 18 | 15 |
Feels °C | 17 | 16 | 17 | 12 | 12 | 13 | 11 | 10 | 13 | 11 | 13 | 12 | 16 | 17 | 15 | 12 | 16 | 15 | 16 | 16 | 11 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 10 | W 10 | W 5 | W 10 | W 5 | W 5 | W 12 | WSW 11 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | SW 8 | SW 7 | SW 7 |
| kJ | 13 | 2 | 8 | 27 | 7 | 11 | 18 | 3 | 12 | 21 | 27 | 24 | 22 | 22 | 13 | 28 | 28 | 27 | 16 | 14 | 8 |
Swell 2 Height (m) Direction Period (s) | W 11 | W 7 | W 10 | W 10 | — | W 9 | W 9 | W 12 | W 9 | WSW 10 | — | W 4 | W 4 | W 4 | WSW 10 | — | ESE 3 | NW 4 | — | E 3 | W 9 |
| kJ | 2 | 1 | 8 | 7 | — | 2 | 2 | 3 | 2 | 19 | — | 3 | 1 | 1 | 18 | — | 1 | 1 | — | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | W 8 | W 8 | W 6 | W 8 | — | W 7 | W 8 | — | W 7 | — | — | — | — | — | — | — | — | — | — | W 9 | — |
| kJ | 1 | 1 | 1 | 1 | — | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | — | WSW 5 | W 4 | — | W 5 | — | — | W 5 | W 4 | — | W 5 | NNW 3 | — | — | NE 2 | ESE 3 | ENE 2 | E 4 | ENE 3 | — | E 3 |
| kJ | — | 14 | 14 | — | 21 | — | — | 29 | 5 | — | 17 | 1 | — | — | 1 | 3 | 1 | 14 | 3 | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 172 | 322 | 322 | 358 | 395 | 358 | 180 | 395 | 181 | 172 | 195 | 125 | 180 | 180 | 299 | 54 | 125 | 54 | 299 | 135 | 218 |
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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