Surf Forecasts:
Mewslade Bay surf forecast from 4 Jul 2026:
- Most powerful swell: Saturday 4 Jul, 7PM (local time) - 3.5ft (1.1m), 10s period, W swell with 235 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 1.1m 10s and forecast to arrive on Saturday (Jul 04) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Jul 10) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Sat 4th Jul) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s get into what’s shaping up for Mewslade Bay over the next couple of weeks.
Got to be honest with you, it’s a pretty bleak run. The first recommendation isn't until July 13th, so we’re looking at a whole week of nothing from the 4th through the 12th. The swell is flat, winds are messy, and it’s just not worth getting wet. The water temperature is about 66°F, which is way warmer than normal for this time of year, but that’s about the only exciting thing.
Now, around Monday the 13th, we finally see a little pulse. A long-period swell from the SW – 19 seconds – shows up, which is the right direction for Mewslade Bay. The early morning is looking glassy with a slight offshore breeze from the NE. The combined energy is low at 31, and the wave height is a measly 0.3 ft. It’s more of a tease than anything rideable.
The best of a weak field is probably Thursday the 16th. The swell holds at about 1 ft from the W with an 8-second period, and the wind is a light cross-offshore from the NW, keeping the surface clean. Energy is still weak at 26. Friday the 17th and Saturday the 18th mornings also offer clean conditions with offshore winds, but the waves stay tiny at 1 ft to 1 ft. It’s strictly log or foamie territory.
Honestly, Monday the 13th is the standout for the *potential* of that long-period groundswell, but the size just isn't there. If you’re jonesing, hit the clean windows on the 16th, 17th, or 18th mornings for some small, clean rollers. Don’t expect much.
Signing off, Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun morning, min 16°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Thu afternoon, min 17°C on Tue morning). Winds increasing (calm on Tue night, fresh winds from the E by Thu night). | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
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 | W 6 | W 6 | WSW 9 | W 9 | W 5 | W 8 | WSW 8 | WSW 9 | WSW 9 | W 8 | W 8 | W 9 | W 10 | W 9 | W 9 | W 10 | W 9 | W 9 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 76 | 80 | 69 | 33 | 26 | 56 | 20 | 22 | 24 | 26 | 25 | 12 | 12 | 13 | 16 | 15 | 15 | 30 | 40 | 38 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross-on | off | cross-off | cross-off | cross-off | cross | cross-on | glassy |
High Tide | 10:04PM7.56m | 10:24AM7.19m | 10:43PM7.42m | 11:05AM7.04m | 11:26PM7.23m | 11:51AM6.87m | 00:15AM7.02m | 12:45PM6.70m | 1:13AM6.82m | 1:49PM6.60m | 2:21AM6.73m | 3:00PM6.67m | 3:35AM6.84m | ||||||||
Low Tide | 3:46PM1.31m | 4:12AM1.34m | 4:23PM1.43m | 4:50AM1.46m | 5:04PM1.60m | 5:34AM1.61m | 5:52PM1.78m | 6:26AM1.77m | 6:49PM1.95m | 7:27AM1.90m | 7:57PM2.03m | 8:37AM1.92m | 9:11PM1.93m | ||||||||
 | |  |  | | | | | | | |  | | | | | | | | | | |
 | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — |
 | — | — | 9:36 | — | — | 9:36 | — | — | 9:35 | — | — | 9:35 | — | — | 9:34 | — | — | 9:32 | — | — | 9:32 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 18 | 19 | 19 | 17 | 18 | 18 | 17 | 20 | 21 | 21 | 22 | 25 | 25 | 27 | 32 | 27 | 27 | 25 | 20 |
Feels °C | 14 | 15 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 19 | 22 | 24 | 24 | 25 | 30 | 24 | 23 | 24 | 20 |
Swell 1 Height (m) Direction Period (s) | W 6 | — | W 6 | W 6 | WSW 9 | W 9 | W 9 | W 8 | WSW 8 | W 5 | WSW 9 | W 8 | W 8 | W 9 | W 10 | W 9 | W 9 | W 10 | W 9 | W 9 | WSW 8 |
| kJ | 76 | — | 69 | 33 | 26 | 56 | 13 | 22 | 24 | 7 | 25 | 12 | 12 | 13 | 16 | 15 | 15 | 30 | 40 | 38 | 22 |
Swell 2 Height (m) Direction Period (s) | W 10 | — | W 10 | WSW 9 | — | — | W 14 | W 14 | — | WSW 9 | SW 12 | W 4 | — | — | — | — | — | — | — | — | ESE 3 |
| kJ | 73 | — | 47 | 28 | — | — | 4 | 4 | — | 26 | 6 | 1 | — | — | — | — | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | — | — | WSW 5 | WSW 5 | W 5 | WSW 5 | WSW 4 | — | WSW 4 | — | — | — | — | E 2 | E 3 | ESE 3 | E 3 | E 4 | — |
| kJ | — | 80 | — | — | 21 | 7 | 20 | 17 | 6 | — | 6 | — | — | — | — | 1 | 1 | 3 | 8 | 14 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 358 | 358 | 1 | 18 | 124 | 167 | 172 | 172 | 158 | 181 | 181 | 78 | 64 | 64 | 64 | 64 | 78 | 48 | 64 | 90 | 88 |
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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