Surf Forecasts:
Mewslade Bay surf forecast from 4 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 5.5ft (1.7m), 7s period, WSW swell with 286 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 1.7m 7s and forecast to arrive on Wednesday (Aug 05) 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 0.4m 4s period and expected on Thursday (Aug 06) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 5th Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s happening at Mewslade Bay in the numbers you know.
I’ve got to be honest with you – the first week plus is a total bust. We’re looking at a solid 8 days of nothing you’d want to paddle into. The wind is all over the place, mostly cross-shore or onshore, and the swell is either almost flat or just a messy, choppy mess. The water is a weird 67° with a massive anomaly – way warmer than it should be for August, but it doesn't make the waves any better. Save your energy.
Things start to look a little less grim around the afternoon of the 12th of August. We’ve got some small, waist-high swell from the WSW at 10 seconds, and the wind goes light and cross-offshore. It’s only 2ft, and the energy is weak (99), but it’s the first clean window in a long time. It’s a longboard-only proposition if you’re really jonesing.
The one session worth getting up early for is the morning of Monday the 17th of August. The swell picks up to a solid 5ft from the WSW with an 8-second period, and the combined energy is moderate (484). The wind is light and cross-shore, keeping it pretty clean. This is proper chest-high stuff, good for an intermediate surfer. That 5ft is getting a bit heavy for beginners. The break can get sometimes crowded, so you might have company, but this is the best bet of the whole forecast.
The days after that? The 18th is lumpy with a fresh cross-shore, and the 19th is back to small and messy. There’s a big gap of poor conditions before and after that Monday morning, so if you can make that session happen, do it.
This is Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 19°C on Tue afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Thu night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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) | SW 7 | SW 6 | WSW 7 | WSW 7 | W 6 | W 6 | WSW 6 | W 5 | W 9 | W 9 | W 9 | W 9 | WSW 9 | WSW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | W 6 | W 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 132 | 144 | 233 | 225 | 135 | 78 | 45 | 14 | 7 | 6 | 6 | 6 | 15 | 30 | 28 | 17 | 7 | 13 | 23 | 4 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross-off | cross | cross | cross-off | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | off |
High Tide | 10:55PM7.62m | 11:18AM7.25m | 11:41PM7.22m | 12:09PM6.87m | 00:38AM6.78m | 1:13PM6.52m | 1:52AM6.45m | 2:35PM6.38m | 3:19AM6.43m | 3:59PM6.64m | 4:38AM6.79m | 5:10PM7.20m | ||||||||
Low Tide | 4:33PM1.13m | 4:58AM1.24m | 5:17PM1.45m | 5:45AM1.61m | 6:11PM1.84m | 6:46AM2.01m | 7:22PM2.17m | 8:06AM2.27m | 8:52PM2.25m | 9:36AM2.19m | 10:20PM1.94m | 10:54AM1.77m | 11:30PM1.39m | |||||||
 |  |  |  |  | | | | | | | | | | | |  | | | | |
 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — |
 | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 16 | 16 | 17 | 15 | 16 | 15 | 15 | 16 | 16 | 16 | 18 | 17 | 18 | 19 | 18 | 19 | 21 | 16 |
Feels °C | 17 | 15 | 10 | 10 | 12 | 9 | 11 | 12 | 14 | 14 | 14 | 14 | 15 | 14 | 17 | 16 | 17 | 16 | 17 | 12 |
Swell 1 Height (m) Direction Period (s) | W 15 | — | W 13 | SW 13 | W 11 | W 6 | W 10 | W 5 | WSW 5 | W 9 | W 4 | W 9 | WSW 9 | WSW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | W 8 | W 5 |
| kJ | 4 | — | 4 | 7 | 2 | 78 | 8 | 14 | 5 | 6 | 3 | 6 | 15 | 30 | 28 | 17 | 7 | 13 | 1 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 13 | W 10 | SW 12 | W 10 | W 9 | SW 12 | W 9 | — | W 13 | W 3 | SW 12 | SW 12 | W 8 | W 8 | — | WSW 6 |
| kJ | — | — | — | — | 7 | 2 | 6 | 7 | 7 | 6 | 6 | — | 3 | 1 | 6 | 6 | 1 | 1 | — | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | — | SW 12 | SW 12 | — | SW 12 | W 5 | — | — | W 8 | W 8 | — | — | W 11 | W 8 |
| kJ | — | — | — | — | — | 6 | — | 6 | 6 | — | 5 | 1 | — | — | 1 | 1 | — | — | 2 | 1 |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 6 | WSW 7 | WSW 7 | W 6 | — | WSW 6 | — | — | WSW 5 | — | — | W 5 | — | — | — | NW 3 | W 4 | W 6 | — |
| kJ | 132 | 144 | 233 | 225 | 135 | — | 45 | — | — | 4 | — | — | 1 | — | — | — | 3 | 1 | 23 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 322 | 281 | 684 | 322 | 244 | 358 | 404 | 306 | 367 | 381 | 378 | 358 | 180 | 78 | 408 | 425 | 195 | 181 | 384 | 366 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mewslade Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest