Surf Forecasts:
Mewslade Bay surf forecast from 6 Jul 2026:
- Most powerful swell: Friday 10 Jul, 10AM (local time) - 1.5ft (0.5m), 9s period, W swell with 41 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 0.5m 9s and forecast to arrive on Friday (Jul 10) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Monday (Jul 13) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Fri 10th Jul) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, let's take a look at the charts for Mewslade Bay. Honestly mate, I've gotta be straight with you – it’s a quiet spell on the horizon. The good news is, the water temp is sitting at 66°, which is a solid 7° warmer than usual for this time of year. That’s very unusual, so at least the paddle out won’t be a cold one.
We kick off Monday the 6th with tiny, weak swell around 2ft from the west, but that WSW wind is blowing cross-onshore at 9 mph, making it messy and choppy. The wave energy is low (37). It's pretty much a write-off for a proper surf.
We go through the whole first week into the second with the same story – flat to tiny surf. The swell height barely cracks 2ft for most of it. The combined swell energy stays in the low double digits for days, barely breaking 40. Sure, we get some nice glassy conditions on Wednesday morning the 8th and Thursday the 9th, and even a few clean, offshore windows pop up towards the end of the week and into the weekend, but there's just no ocean energy to work with.
There’s a decent gap there with no real recommendations until we get to the third week. The first standout, and honestly the only one worth mentioning, is Tuesday the 21st. We finally see a pulse of new swell, lifting to 4ft out of the WNW, and the wave energy jumps up to a moderate 145. That's a proper increase. We get a clean morning with a moderate offshore breeze from the NNE at 12 mph. The wind is offshore, so the surface will be clean. The period is short though, only 6 seconds, so it won’t be the most powerful or well-shaped stuff, but after that long flat spell, it’ll be a welcome change. This one is for the keen ones who just need to get wet. Beginners should be fine in the smaller sets at 4ft, but keep an eye on the tide.
So, the outlook is this: a long, flat stretch until around Tuesday the 21st. That morning of the 21st is your best bet - the only real window with some push and clean wind. It's a long way out, so don't bank on it, but it's something to keep an eye on.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Wed afternoon, min 15°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri afternoon. Warm (max 33°C on Sat afternoon, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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 | W 5 | WSW 8 | WSW 9 | WSW 9 | W 8 | W 8 | W 8 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | WSW 8 | W 7 | WSW 8 | WSW 8 | W 8 | W 21 | W 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 20 | 19 | 24 | 26 | 25 | 12 | 12 | 23 | 30 | 16 | 15 | 15 | 41 | 39 | 22 | 8 | 13 | 6 | 10 | 10 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-off | glassy | cross | cross-off | glassy | cross | off | cross | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 4:12PM6.95m | 4:45AM7.15m | 5:17PM7.41m | ||||||||
Low Tide | 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 | 9:49AM1.77m | 10:24PM1.63m | 10:57AM1.45m | 11:30PM1.21m | ||||||||
 |  |  |  | |  | | | | | | | |  | | | | | | | | |
 | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — |
 | — | — | 9:35 | — | — | 9:35 | — | — | 9:34 | — | — | 9:32 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 | — | — | — | — | — |
Temp °C | 17 | 18 | 17 | 19 | 21 | 21 | 21 | 22 | 22 | 22 | 25 | 24 | 27 | 30 | 23 | 27 | 33 | 30 | 27 | 32 | 26 |
Feels °C | 15 | 16 | 16 | 16 | 19 | 20 | 22 | 22 | 22 | 22 | 23 | 22 | 27 | 29 | 20 | 27 | 31 | 29 | 25 | 29 | 21 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | WSW 8 | W 5 | WSW 9 | W 8 | W 8 | W 8 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | WSW 8 | W 7 | WSW 8 | WSW 8 | W 8 | W 8 | W 16 |
| kJ | 13 | 12 | 24 | 11 | 25 | 12 | 12 | 23 | 30 | 16 | 15 | 15 | 41 | 39 | 22 | 8 | 13 | 6 | 5 | 1 | 5 |
Swell 2 Height (m) Direction Period (s) | W 14 | W 14 | — | WSW 9 | SW 12 | W 4 | — | — | — | — | — | NNW 3 | — | — | SE 4 | WSW 8 | — | — | SW 16 | SW 16 | W 8 |
| kJ | 4 | 4 | — | 26 | 6 | 1 | — | — | — | — | — | 1 | — | — | 2 | 7 | — | — | 10 | 10 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 11 | W 10 | — | — | — | — | — | — | — | — | NW 7 | W 17 | — | — | — | W 21 | — |
| kJ | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — | 2 | 6 | — | — | — | 9 | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | W 4 | W 5 | WSW 4 | — | — | — | — | — | — | NE 2 | E 3 | ESE 3 | SSE 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 |
| kJ | 20 | 19 | 10 | 12 | 7 | — | — | — | — | — | — | 1 | 2 | 7 | 1 | 13 | 10 | 36 | 19 | 28 | 37 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 172 | 172 | 172 | 172 | 195 | 78 | 64 | 181 | 64 | 118 | 180 | 64 | 4 | 5 | 48 | 78 | 118 | 125 | 374 | 132 | 125 |
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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