Surf Forecasts:
Mewslade Bay surf forecast from 28 Jul 2026:
- Most powerful swell: Tuesday 28 Jul, 4AM (local time) - 3ft (0.9m), 6s period, WSW swell with 60 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 0.9m 6s and forecast to arrive on Tuesday (Jul 28) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 02) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Tue 28th Jul) | 3ft (0.9m) 6s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this is a grim outlook for Mewslade Bay. The whole 16-day window is a write-off. There isn’t a single surfable moment in the cards, so if you’re hanging for a wave, you’re better off staying home and waxing your board for another day.
Right now, through the end of July and into the first week of August, we’ve got tiny, weak swell. We’re talking waves around 0.7ft to 3ft with a short, choppy period of 5 to 6 seconds, and the wind is mostly cross or cross-onshore, which just messes up the surface. The combined wave energy is barely a whisper, ranging from 14 to 70 (weak). It’s not worth paddling out for.
The water temperature is 69°F, which is a massive 8°F warmer than usual for this time of year – that’s frankly weird and notable, but it doesn’t help the waves. The wind is mostly a moderate breeze, and the conditions are consistently described as "poor surf conditions" with a score of 0 out of 10. There’s no glimmer of hope.
We do get a brief moment of clean conditions on the morning of Friday, 31 July, with a light cross-offshore wind, but the swell is still only 2ft. It’s clean, but it’s not going to be a ride you’ll remember. Similarly, the morning of Monday, 3 August, offers a glassy surface with a 1ft swell, but it’s just too small to get excited about.
Then, looking way ahead to the second week, around Saturday, 8 August, we see a big spike in swell height coming through – 6ft to 7ft with strong wave energy (485 to 528). But don’t let that fool you. The wind is going to be a fresh onshore or cross-onshore breeze, with rain showers. The period is short at 8 seconds, so it’ll be a lumpy, messy mess. That’s too big for beginners, and for the more experienced, it’s just not going to be any fun. Sunday, 9 August, keeps the same story: 5ft to 6ft with fresh cross-onshore wind and rain. It’s a write-off.
The rest of the window fades back into tiny, weak surf with no redeeming features. Honestly, with the swell being so small and the wind so often onshore, this setup looks more interesting for a kite surfer than a paddle surfer, but even then, it’s marginal.
We’ve got a solid 16-day blank run here. That’s rare for a spot that’s fairly consistent, so don’t lose hope – forecasts can always change, but right now, there’s nothing to recommend.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Tue afternoon, min 15°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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) | WSW 6 | WSW 6 | WSW 6 | W 5 | WSW 5 | W 11 | WSW 5 | WSW 5 | W 5 | WSW 5 | W 5 | W 6 | W 6 | W 4 | W 5 | W 5 | WSW 8 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 70 | 61 | 33 | 13 | 8 | 9 | 14 | 32 | 29 | 39 | 18 | 32 | 39 | 9 | 27 | 18 | 14 | 13 | 12 | 24 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross | glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross-on | cross | cross | cross | cross-off | cross-off | cross | off |
High Tide | 6:05PM6.72m | 6:26AM6.77m | 6:46PM7.16m | 7:04AM7.15m | 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 | |||||||
Low Tide | 00:19AM1.89m | 12:35PM1.72m | 00:58AM1.50m | 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 | |||||||
 |  |  | |  | | | |  | | | | | | | | | | | | |
 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — |
 | — | 9:13 | — | — | 9:12 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 19 | 17 | 18 | 18 | 18 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 15 |
Feels °C | 16 | 17 | 17 | 18 | 18 | 17 | 15 | 17 | 13 | 13 | 15 | 11 | 11 | 13 | 12 | 11 | 13 | 14 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | WSW 6 | W 5 | WSW 5 | WSW 5 | W 10 | W 10 | W 10 | W 9 | W 5 | W 6 | W 12 | W 11 | W 5 | WSW 9 | W 4 | WSW 8 | WSW 8 | WSW 8 |
| kJ | — | — | 33 | 13 | 8 | 8 | 2 | 8 | 7 | 7 | 18 | 32 | 3 | 2 | 27 | 16 | 6 | 13 | 12 | 24 |
Swell 2 Height (m) Direction Period (s) | — | — | W 8 | W 8 | W 8 | W 11 | W 7 | — | W 8 | W 8 | W 9 | — | W 9 | W 9 | WSW 10 | — | WSW 8 | W 4 | W 10 | W 4 |
| kJ | — | — | 1 | 1 | 1 | 2 | 4 | — | 1 | 1 | 2 | — | 2 | 2 | 19 | — | 14 | 3 | 7 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 11 | W 11 | W 8 | — | — | — | W 8 | — | — | W 7 | — | — | — | W 11 | W 6 | — |
| kJ | — | — | — | — | 2 | 9 | 1 | — | — | — | 1 | — | — | 1 | — | — | — | 2 | 1 | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 6 | — | — | — | — | WSW 5 | WSW 5 | W 5 | WSW 5 | — | — | W 6 | W 4 | — | W 5 | WNW 4 | — | WSW 5 | N 3 |
| kJ | 70 | 61 | — | — | — | — | 14 | 32 | 29 | 39 | — | — | 39 | 9 | — | 18 | 6 | — | 8 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 288 | 95 | 134 | 153 | 125 | 172 | 322 | 358 | 358 | 395 | 358 | 180 | 195 | 464 | 181 | 592 | 374 | 180 | 402 | 78 |
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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