Surf Forecasts:
Mewslade Bay surf forecast from 8 Jul 2026:
- Most powerful swell: Friday 10 Jul, 7AM (local time) - 1.5ft (0.5m), 9s period, W swell with 42 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 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Jul 14) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Fri 10th Jul) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
Alright folks, Rusty here. Gotta be straight with you – the next couple of weeks are looking like a write-off for decent waves. We’ve got a long stretch of tiny, weak surf ahead, so don't bother rushing to wax up just yet.
The whole 16-day window is a bit of a dud. For the first 15 days, from Tuesday 7th of July all the way through to Monday 20th of July, the swell is barely a whisper, with heights struggling to hit a foot and a half. The wave energy is pitiful, barely registering two digits (44). With that kind of size, you’re not surfing; you’re just floating. The water, however, is *much* warmer than normal for this time of year at 66°, which is a solid 7° above average – that’s very unusual.
Now, the best you can hope for in this flat spell is a window on Friday 10th of July. On Friday afternoon at Mewslade Bay, we’ve got a tiny 2ft swell out of the west, but the wind swings light offshore from the NNW. That’ll keep the surface clean. The combined energy is weak at 39. It’s not going to be a session to write home about, just a chance to bob around on a log if you’re desperate. Crowds are possible here, but honestly, with this lack of size, no one’s coming.
Honestly, the only thing that saves this outlook from being a total blank is a late pulse at the very end of the run. On Wednesday 22nd of July, things finally pick up. The swell jumps to 5ft to 5ft out of the WSW, with moderate energy hitting three figures (204). That’s a real swell. However, the wind is a fresh, lumpy cross-shore from the WNW, which will chop it right up. It’s going to be a messy, bumpy wave for the experts only. The period is short too, around 7-8 seconds, so the waves will lack any real shape or push. For the average punter, that day will be more about the power than the quality. If you’re a strong paddler, maybe give it a look, but don't expect much.
So to sum it up: almost two weeks of flat, glassy nothing, then a blast of messy, blown-out swell right at the end. Surf-wise, the only real standout is that Friday 10th of July window for a clean, tiny wave. The rest is for the kites if the wind’s right.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu afternoon, min 17°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Sat afternoon, min 15°C on Sun night). Winds increasing (light winds from the NNW on Fri afternoon, fresh winds from the ENE by Sun night). | ||||||||||||||||||||
Tue 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WSW 9 | WSW 8 | WSW 8 | W 9 | W 10 | WSW 10 | W 10 | W 9 | W 9 | W 9 | W 8 | WSW 7 | WSW 8 | W 8 | SW 16 | W 21 | W 16 | SW 20 | SW 19 | SW 15 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 25 | 13 | 23 | 23 | 17 | 31 | 16 | 16 | 41 | 39 | 33 | 9 | 13 | 5 | 10 | 10 | 5 | 15 | 15 | 8 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross | cross | glassy | cross-on | off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 5:48AM7.57m | 6:15PM7.91m | 6:43AM7.97m | ||||||||
Low Tide | 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 | 11:58AM1.06m | 00:29AM0.76m | 12:52PM0.68m | |||||||
 |  | | | | | | | | | | |  | | | | | | |  | | |
 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 |
 | — | 9:35 | — | — | 9:34 | — | — | 9:32 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 | — | — | 9:30 | 9:29 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 19 | 20 | 20 | 21 | 25 | 22 | 25 | 29 | 26 | 26 | 30 | 28 | 25 | 30 | 23 | 25 | 30 | 26 | 26 |
Feels °C | 14 | 17 | 19 | 18 | 19 | 20 | 24 | 20 | 25 | 29 | 24 | 25 | 29 | 25 | 23 | 26 | 15 | 19 | 25 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 8 | WSW 8 | W 9 | W 10 | WSW 10 | W 5 | W 9 | W 9 | W 9 | W 8 | WSW 7 | WSW 8 | W 8 | W 8 | W 8 | W 8 | SW 20 | SW 19 | SW 15 | W 12 |
| kJ | 25 | 13 | 23 | 23 | 17 | 31 | 5 | 16 | 41 | 39 | 33 | 9 | 13 | 5 | 1 | 1 | 1 | 15 | 15 | 8 | 3 |
Swell 2 Height (m) Direction Period (s) | SW 12 | WSW 4 | — | — | W 4 | — | W 10 | W 4 | — | — | — | WSW 8 | — | — | SW 16 | SW 16 | W 16 | SW 15 | SW 15 | W 13 | SW 18 |
| kJ | 6 | 3 | — | — | 1 | — | 16 | 2 | — | — | — | 7 | — | — | 10 | 10 | 5 | 8 | 8 | 3 | 12 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 10 | — | — | — | — | — | — | — | — | — | W 17 | — | — | W 16 | W 21 | — | W 8 | W 8 | W 8 | SW 14 |
| kJ | 2 | 2 | — | — | — | — | — | — | — | — | — | 6 | — | — | 5 | 9 | — | 1 | 1 | 1 | 8 |
Wind waves Height (m) Direction Period (s) | W 5 | — | — | — | — | — | — | N 3 | — | — | — | ESE 2 | ESE 3 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 |
| kJ | 11 | — | — | — | — | — | — | 1 | — | — | — | 1 | 2 | 18 | 12 | 10 | 27 | 18 | 10 | 39 | 35 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 172 | 78 | 64 | 124 | 180 | 54 | 180 | 48 | 4 | 78 | 57 | 118 | 125 | 118 | 191 | 130 | 326 | 419 | 384 | 125 | 377 |
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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