Surf Forecasts:
Mewslade Bay surf forecast from 29 Jul 2026:
- Most powerful swell: Saturday 1 Aug, 4PM (local time) - 2.5ft (0.8m), 9s period, W swell with 103 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 0.8m 9s and forecast to arrive on Saturday (Aug 01) at 4PM. 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 Wednesday (Aug 05) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sat 1st Aug) | 2.5ft (0.8m) 9s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Hey, Rusty here. Gotta be honest with you about Mewslade Bay for the next couple of weeks.
It's looking bleak, my friend. A proper flat spell has settled in, and we're staring down a long gap with hardly a wave worth mentioning for the entire 16-day outlook. Your first real hope, and it's a slim one, doesn't arrive until the end.
Right off the bat, Wednesday the 29th, we've got tiny 1ft swell with a short, weak period of 5 seconds. The combined energy is a paltry 12, and the wind is onshore and choppy. It's a hard pass. That same story plays out through Thursday and Friday. We get a bump to 2ft, but the period stays short and the wind stays messy. It's all poor surf.
The weekend, the 1st and 2nd of August, is more of the same struggle. Saturday morning has a longer 10-second period, but the swell is only 1ft, so it’s not enough. The combined energy hits 130 on Saturday afternoon with a 3ft swell, but it's a lumpy, weak windswell with a bad onshore wind. Not going to happen. Sunday afternoon goes glassy for a moment, but the swell is still a weak 1ft.
If you're really scraping the barrel, the cleanest conditions might be Monday the 3rd and Tuesday the 4th of August. We’ll have clean, cross-offshore winds with the swell holding around 1ft to 2ft. The energy is still weak though (16-35 range). You might get a tiny, clean little ankle-slapper, but that's the ceiling. Water temps are about average for this time of year.
The second week, starting around the 5th of August, gets even worse. Swell drops to 0.7ft and less, with energy in the single digits. Lots of glassy mornings, but no swell to push in. It's a classic blank run for the area.
If you’re determined to get wet, the only small window is the morning of Tuesday, August 11th. Expect a glassy 2ft swell from the west. It's a tiny, short-period windswell, but it'll be clean. Energy is only about 15, so don't expect much push. Crowds won't be an issue because there's nothing to ride.
Bottom line: save your energy. There's nothing worthwhile for at least a week and a half. That little window around the 11th of August is your only hope, and it's a long shot. The ocean is on a break, so you might as well take one too.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 15°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon afternoon. Very mild (max 19°C on Mon morning, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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) | WSW 5 | WSW 5 | W 4 | W 6 | W 5 | W 5 | W 5 | W 3 | WSW 11 | W 5 | W 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 8 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 8 | 12 | 29 | 25 | 12 | 12 | 7 | 12 | 19 | 103 | 24 | 22 | 22 | 31 | 28 | 33 | 16 | 14 | 8 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | cross-on | glassy | glassy | cross | cross | cross | cross | off | cross | glassy | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | off |
High Tide | 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 | 9:57AM7.77m | 10:15PM7.93m | 10:35AM7.56m | 10:55PM7.62m | |||||||
Low Tide | 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 | 3:56PM0.90m | 4:18AM0.96m | 4:33PM1.13m | ||||||||
 | |  |  | |  | | | | | | |  | |  | |  |  | | | | |
 | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — |
 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — |
Temp °C | 18 | 19 | 18 | 16 | 17 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 19 | 17 | 17 | 17 | 19 | 15 |
Feels °C | 17 | 17 | 17 | 13 | 13 | 13 | 14 | 11 | 12 | 11 | 12 | 13 | 15 | 15 | 15 | 18 | 14 | 17 | 14 | 17 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 5 | W 10 | W 10 | W 10 | W 10 | W 5 | W 5 | W 12 | WSW 11 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 8 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 |
| kJ | 9 | 2 | 8 | 2 | 7 | 12 | 12 | 3 | 12 | 18 | 27 | 24 | 22 | 22 | 31 | 28 | 33 | 16 | 14 | 8 | 7 |
Swell 2 Height (m) Direction Period (s) | W 11 | W 7 | W 6 | W 8 | W 8 | W 9 | W 9 | W 12 | — | WSW 10 | — | W 4 | W 4 | W 4 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 |
| kJ | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 3 | — | 19 | — | 3 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | W 8 | — | — | — | — | W 7 | W 8 | W 12 | W 7 | — | — | — | — | — | W 10 | — | — | W 10 | — | W 15 | W 11 |
| kJ | 1 | — | — | — | — | 1 | 1 | 3 | 1 | — | — | — | — | — | 8 | — | — | 2 | — | 4 | 2 |
Wind waves Height (m) Direction Period (s) | — | WSW 5 | W 4 | W 6 | W 5 | — | — | W 3 | W 3 | — | W 9 | NNW 3 | — | — | — | E 3 | — | NW 3 | — | — | N 3 |
| kJ | — | 8 | 12 | 29 | 25 | — | — | 7 | 4 | — | 103 | 1 | — | — | — | 1 | — | 2 | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 172 | 322 | 172 | 358 | 395 | 180 | 181 | 396 | 181 | 181 | 195 | 180 | 191 | 180 | 4 | 54 | 5 | 422 | 397 | 772 | 364 |
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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