Surf Forecasts:
Mewslade Bay surf forecast from 25 Jul 2026:
- Best quality surf: Thursday 30 Jul, 10AM (local time) - 3.5ft (1.0m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 1PM (local time) - 5ft (1.6m), 7s period, W swell with 243 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 10AM (local time) - 3.5ft (1.0m), 6s period with W swell.
Best Forecast Surf Conditions for Mewslade Bay this week:
The surf forecast for Mewslade Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 30) at 10AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mewslade Bay in the next 16 days are 1.6m 7s and forecast to arrive on Sunday (Jul 26) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Jul 27) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 30th Jul) | 3.5ft (1.0m) 6s |
| Best Surf | 10AM (Thu 30th Jul) | 3.5ft (1.0m) 6s |
| Most Powerful | 1PM (Sun 26th Jul) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Right then, let's have a look at what's on the cards for the next couple of weeks.
Honestly, it's a tough stretch ahead. The water is a balmy 68°, which is *much warmer than normal* for this time of year, but that's about the only thing that's co-operating. We're looking at a long, bleak run of no real surf for days on end. The first week is basically a write-off, with nothing but tiny, weak waves and poor winds. There's a bit of a pulse on the 26th of July, with a 5ft swell from the west but it's getting hammered by a 22 mph cross-offshore wind, so it'll be blown out and messy. Not worth getting wet for.
The real glimmer of hope comes way down the line, mid-week of the second week. On the morning of Sunday the 9th of August, we finally see some proper energy arrive. The swell bumps up to 5ft from the west, but the key here is the wind. A clean 15 mph cross-offshore breeze from the northwest should clean that right up.
Mewslade Bay is the only spot in the game, and that morning looks like the only real window. It's an exposed spot, so it'll catch that west swell, but with a period of 7 seconds, it's going to be a bit of a short-period, windswell-type wave. The combined energy is a solid 321 (moderate), so there's some punch, but it won't be a classic groundswell. For an intermediate surfer, that Sunday morning is the standout, but it's still a long way off, so keep an eye on the charts. The crowds can show up here sometimes, so don't expect to have it to yourself.
Outside of that one morning, it's a grim outlook. The rest of the window is tiny, weak, and mostly onshore or cross-onshore. A real shame.
Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 14°C on Sun night). Winds decreasing (fresh winds from the NW on Sun morning, light winds from the SW by Mon night). | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Wed morning, min 16°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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 4 | W 6 | W 7 | W 7 | W 7 | W 7 | WSW 6 | WSW 6 | W 6 | W 5 | WSW 5 | W 11 | WSW 3 | WSW 4 | W 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 24 | 104 | 233 | 211 | 104 | 89 | 68 | 56 | 31 | 13 | 5 | 2 | 3 | 12 | 62 | 98 | 56 | 46 | 13 | 14 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross | cross-off | cross | cross-on | cross-on | on | cross | glassy | cross | cross | cross | cross-off | cross-on | cross-off | cross-on | cross | off |
High Tide | 4:19PM5.96m | 4:51AM6.02m | 5:18PM6.29m | 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 | |||||||
Low Tide | 10:35PM2.61m | 11:02AM2.48m | 11:32PM2.28m | 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 | |||||||
 |  | |  |  | | |  | | | | | | |  | | | | | | |
 | — | — | 5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — |
 | — | 9:15 | — | — | 9:15 | — | — | 9:13 | — | — | 9:12 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 19 | 18 | 17 | 18 | 18 | 19 | 22 | 21 | 23 | 23 | 20 | 19 | 19 | 18 | 18 | 21 | 20 |
Feels °C | 14 | 15 | 12 | 15 | 15 | 14 | 16 | 18 | 19 | 21 | 20 | 22 | 21 | 18 | 18 | 16 | 15 | 16 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | — | W 6 | — | — | W 7 | W 7 | — | WSW 6 | W 6 | W 5 | WSW 5 | W 5 | W 10 | W 10 | W 10 | W 9 | WSW 6 | WSW 6 | WSW 6 | W 5 |
| kJ | — | 94 | — | — | 104 | 89 | — | 56 | 31 | 13 | 5 | 2 | 2 | 8 | 2 | 7 | 56 | 46 | 13 | 14 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 8 | W 8 | W 8 | W 11 | W 8 | W 10 | — | — | — | — | WSW 5 | W 12 |
| kJ | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 1 | 2 | — | — | — | — | 8 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 12 | W 12 | W 11 | W 8 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 3 | 2 | 1 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 4 | WSW 6 | W 7 | W 7 | — | — | WSW 6 | — | — | — | — | — | WSW 3 | WSW 4 | W 6 | WSW 6 | — | — | — | — |
| kJ | 24 | 104 | 233 | 211 | — | — | 68 | — | — | — | — | — | 3 | 12 | 62 | 98 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 395 | 498 | 756 | 358 | 155 | 358 | 311 | 172 | 78 | 148 | 125 | 153 | 322 | 214 | 0 | 358 | 4 | 4 | 181 | 54 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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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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