Surf Forecasts:
Mewslade Bay surf forecast from 9 Jul 2026:
- Most powerful swell: Friday 10 Jul, 7AM (local time) - 1.5ft (0.5m), 9s period, W swell with 43 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 1.2m 5s period and expected on Wednesday (Jul 15) at 10AM.
| 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.
Right, I’ll be straight with you – this is a tough one. The entire 16-day window for Mewslade Bay is a write-off. There’s no good surf on offer, not a single session worth paddling out for. We’ve got a long, blank run from now through to the 24th of July.
The swell is tiny, hanging around 0.3ft to 2ft, with weak combined swell energy that barely cracks double digits – you’re looking at values like 20 or 24 (weak energy) for most of the period. The wave comment says it all: “poor surf conditions” every single time. There’s one little blip right at the end on the 24th of July Friday morning, where the swell tries to push up to 4ft, and the combined energy hits 119 (moderate energy), but it’s a cross-onshore, messy wind from the SW, so it’s junk.
The water temperature anomaly is average, nothing unusual to report. The occasional glassy, clean conditions, like on the 18th of July Saturday morning with a 1.0ft, 10-second period swell from the W, are just flat and lifeless. The offshore wind (NNE) is the right direction, but there’s simply no push to the waves.
Forget the board. The wind is up and the swell is down, so this is a classic stretch to do something else. If you’re desperate for a paddle, the 24th might have a tiny bit of bump, but it won’t be worth the effort. This is one of those blank runs that’s normal for the area when the charts just don’t deliver.
Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Fri afternoon, min 15°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Tue afternoon, min 14°C on Sun night). Winds increasing (light winds from the ENE on Sun afternoon, fresh winds from the ENE by Mon night). | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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 10 | W 10 | W 10 | W 9 | W 9 | W 8 | WSW 7 | WSW 8 | WSW 8 | W 8 | W 21 | W 16 | SW 20 | SW 19 | SW 15 | SW 18 | W 11 | W 10 | W 10 | WSW 9 | WSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 16 | 16 | 42 | 40 | 37 | 9 | 13 | 6 | 10 | 10 | 5 | 15 | 15 | 9 | 12 | 12 | 8 | 10 | 10 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | 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 | cross-off | cross-off | cross | cross | off |
High Tide | 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 | 7:07PM8.37m | 7:34AM8.27m | 7:56PM8.68m | ||||||||
Low Tide | 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 | 1:22AM0.39m | 1:42PM0.41m | 2:11AM0.18m | |||||||
 | |  | | | | | | |  | |  |  | |  | | |  |  | | | |
 | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — |
 | — | — | 9:32 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 8 | 8 |
Temp °C | 20 | 24 | 23 | 26 | 30 | 27 | 27 | 29 | 27 | 25 | 28 | 23 | 23 | 29 | 24 | 26 | 30 | 24 | 21 | 21 | 20 |
Feels °C | 18 | 22 | 21 | 26 | 28 | 25 | 26 | 28 | 26 | 23 | 25 | 16 | 19 | 24 | 18 | 23 | 25 | 18 | 22 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 5 | W 10 | W 9 | W 9 | W 8 | WSW 7 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | SW 20 | SW 19 | SW 15 | SW 18 | W 11 | W 10 | W 10 | WSW 9 | WSW 9 |
| kJ | 16 | 4 | 16 | 42 | 40 | 37 | 9 | 13 | 6 | 5 | 1 | 1 | 15 | 15 | 9 | 12 | 9 | 8 | 8 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | W 4 | W 10 | W 4 | — | — | — | WSW 8 | ESE 2 | WNW 4 | SW 16 | SW 16 | W 16 | SW 15 | SW 15 | W 13 | W 12 | SW 18 | SW 14 | SW 16 | SW 16 | SW 16 |
| kJ | 4 | 16 | 2 | — | — | — | 7 | 1 | 1 | 10 | 10 | 5 | 8 | 8 | 3 | 3 | 12 | 7 | 10 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 17 | — | — | W 16 | W 21 | — | W 8 | W 8 | W 8 | SW 14 | SW 14 | W 18 | — | SW 13 | SW 13 |
| kJ | — | — | — | — | — | — | 6 | — | — | 5 | 9 | — | 1 | 1 | 1 | 8 | 7 | 6 | — | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NNW 3 | — | NE 3 | E 3 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | ESE 4 | E 5 | E 4 | ESE 3 |
| kJ | — | — | — | — | — | 1 | — | 2 | 10 | 12 | 11 | 28 | 25 | 15 | 38 | 35 | 22 | 29 | 60 | 27 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 180 | 48 | 4 | 4 | 4 | 48 | 143 | 64 | 125 | 132 | 385 | 407 | 395 | 126 | 54 | 54 | 122 | 134 | 146 | 133 |
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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