Surf Forecasts:
Mewslade Bay surf forecast from 27 Jul 2026:
- Most powerful swell: Friday 31 Jul, 4AM (local time) - 4.5ft (1.3m), 7s period, W swell with 148 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 1.3m 7s and forecast to arrive on Friday (Jul 31) 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 0.6m 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 (Fri 31st Jul) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down the options for Mewslade Bay over the next couple of weeks in feet, miles per hour, and Fahrenheit.
Plain and simple, this is a rough stretch. The first week is a total bust. From Monday, July 27th up to the end of the first week, every session is a dud. The swell is tiny, mostly under 3ft, with very short swell periods (3 to 6 seconds) and the combined energy is weak, all in the double digits. The wind is constantly onshore or side-shore, tearing up whatever little bump is there. Don’t even bother.
There’s a pulse that tries to arrive later, but it’s not the savior we need. On Friday, August 7th, the swell climbs to around 6ft to 6ft (combined energy 254-316), but it’s coming from the WSW with a short 7-second period and the wind is onshore, making for sloppy, choppy conditions. That’s big, ugly, and messy – only for the hardcore who don’t mind a beating.
The one day that might offer a window is Saturday, August 8th. The morning shows a clean light cross-shore breeze with a 5ft swell from the WSW (combined energy 268). The period is still short at 7 seconds, so it’ll be a bit lumpy, but with that light wind, it might be just about rideable for a few. The afternoon turns choppy again, so you’d want to be out early. The crowd factor is "sometimes" here, so you might have to share, but it’s your best shot.
The water temperature is about normal for this time of year, nothing notable.
The second week fades quickly. By Sunday, August 9th, it’s back to onshore junk under 4ft, and the wind really cranks up on Monday and Tuesday, August 10th and 11th, with gusts up to 28 mph from the NNW. That’s more of a kite-surfing wind than a clean paddle session. Clean conditions are mentioned on the morning of the 11th, but the swell is only 4ft with a weak period, so don’t expect much.
If you’re desperate for a surf, keep your eyes on the morning of Saturday, August 8th. That’s your one and only standout, but it’s a long way out, so treat it as a possibility, not a promise. The rest is a flat, windy mess.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun night, min 14°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Wed night, min 14°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||
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 6 | WSW 6 | WSW 6 | WSW 6 | W 5 | WSW 5 | WSW 5 | W 3 | W 10 | W 6 | WSW 6 | W 6 | W 6 | W 6 | W 5 | W 6 | W 5 | W 9 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 84 | 82 | 43 | 33 | 14 | 8 | 8 | 7 | 8 | 77 | 98 | 126 | 116 | 76 | 20 | 23 | 13 | 7 | 13 | 13 | 19 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | cross | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross-off | cross | off | cross | cross | glassy |
High Tide | 5:43AM6.38m | 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 | 11:53AM2.12m | 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 | |||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:31 | — | — | 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 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 18 | 17 | 20 | 22 | 21 |
Feels °C | 14 | 16 | 17 | 18 | 18 | 20 | 18 | 17 | 17 | 15 | 13 | 13 | 11 | 10 | 13 | 12 | 13 | 13 | 17 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | W 6 | — | WSW 6 | WSW 6 | W 5 | WSW 5 | WSW 5 | W 10 | W 10 | W 10 | — | — | — | — | W 5 | W 6 | W 8 | W 4 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 84 | — | 43 | 33 | 14 | 8 | 8 | 2 | 8 | 2 | — | — | — | — | 20 | 23 | 5 | 3 | 13 | 13 | 19 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 8 | W 8 | W 8 | W 11 | W 8 | W 10 | — | — | — | — | — | W 11 | W 11 | W 10 | WSW 8 | — | — | W 11 |
| kJ | — | — | — | 1 | 1 | 1 | 2 | 1 | 8 | — | — | — | — | — | 3 | 2 | 2 | 6 | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 11 | W 11 | — | — | — | — | — | — | — | W 11 | W 8 | W 10 | W 9 | — | — | W 10 |
| kJ | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | 2 | 1 | 2 | 7 | — | — | 2 |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | — | — | — | — | — | W 3 | WSW 4 | W 6 | WSW 6 | W 6 | W 6 | W 6 | — | — | W 5 | N 3 | — | — | NNW 3 |
| kJ | — | 82 | — | — | — | — | — | 7 | 7 | 77 | 98 | 126 | 116 | 76 | — | — | 13 | 1 | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 358 | 318 | 95 | 126 | 136 | 125 | 172 | 322 | 281 | 358 | 395 | 44 | 1 | 395 | 366 | 405 | 739 | 347 | 384 | 408 | 64 |
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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