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 Tuesday (Jul 14) at 7AM.
| 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 then, let's have a look at what's coming up for Mewslade Bay over the next couple of weeks. I'll be straight with you, it's a quiet picture for the most part.
We kick off on Thursday the 9th of July, and honestly, the surf is tiny. We're looking at 1.0ft waves from the west with a short period of 10 seconds, and the combined energy is a weak 20. The water is sitting at 67°, which is a massive 8° warmer than usual – that's really unusual for this time of year, a proper anomaly. But don't get too excited about that, because the wind is onshore and the conditions are poor. It's basically a write-off for a paddle.
That theme continues right through the weekend and into the following week. The swell stays tiny, mostly between 0.3ft and 2ft, and the wave energy is weak, rarely getting above 40. There are some cleaner windows with cross-offshore winds, especially from the 12th of July onwards, but the swell just isn't there to make anything of it. We've got a long gap here – from now right through to at least the 24th of July – where there are no worthwhile waves on the cards. The swell direction is mostly SW, which is what this spot likes, but the size is a big fat zero.
The standout period? Well, there really isn't one in this 16-day window. The forecasts show nothing but poor surf conditions across the entire period. Everything is consistently tiny, with very low wave energy. The only thing that changes is the wind, and while we get some clean, glassy conditions on the afternoon of the 14th and a few mornings with clean cross-off winds, it's all on waves that are barely a ripple.
So, to be blunt, there’s nothing here worth paddling out for. It’s a blank run for Mewslade Bay. If you're a kite surfer, the stronger winds on the 18th and 20th of July might look interesting, but for a surfboard, keep it in the shed. The forecasts can change, but for now, it’s a two-week waiting game.
Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Sat afternoon, min 16°C on Thu morning). 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 decreasing (fresh winds from the ENE on Sun night, calm by Tue afternoon). | ||||||||||||||||||||
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 | SW 16 | W 21 | W 16 | SW 20 | SW 19 | SW 15 | W 11 | W 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 16 | 16 | 42 | 40 | 37 | 9 | 13 | 6 | 10 | 10 | 5 | 15 | 15 | 8 | 12 | 12 | 12 | 19 | 17 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | off | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross | on |
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 | 7:57PM2.03m | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 19 | 24 | 23 | 26 | 30 | 27 | 27 | 31 | 26 | 25 | 29 | 23 | 23 | 28 | 25 | 25 | 30 | 26 | 23 | 25 | 22 |
Feels °C | 18 | 23 | 21 | 26 | 28 | 26 | 26 | 30 | 23 | 22 | 24 | 16 | 20 | 24 | 21 | 23 | 27 | 21 | 24 | 23 | 21 |
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 | W 12 | W 11 | W 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 |
| kJ | 16 | 4 | 16 | 42 | 40 | 37 | 9 | 13 | 6 | 1 | 1 | 1 | 15 | 15 | 3 | 10 | 9 | 10 | 19 | 17 | 16 |
Swell 2 Height (m) Direction Period (s) | W 4 | W 10 | W 4 | — | — | NNW 3 | WSW 8 | W 17 | NW 4 | SW 16 | SW 16 | W 16 | SW 15 | SW 15 | SW 15 | SW 18 | SW 18 | SW 14 | SW 16 | SW 7 | SSW 7 |
| kJ | 4 | 16 | 2 | — | — | 1 | 7 | 6 | 1 | 10 | 10 | 5 | 8 | 8 | 8 | 12 | 12 | 7 | 10 | 2 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 17 | — | — | W 16 | W 21 | — | W 9 | W 8 | W 8 | SW 14 | SW 14 | SW 18 | S 6 | SW 16 | SW 16 |
| kJ | — | — | — | — | — | — | 6 | — | — | 5 | 9 | — | 2 | 1 | 1 | 8 | 7 | 12 | 1 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | NNW 2 | — | — | — | — | E 3 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 5 | E 4 | E 4 | E 3 | E 4 | E 4 |
| kJ | — | — | 1 | — | — | — | — | 1 | 9 | 12 | 14 | 36 | 35 | 28 | 35 | 60 | 21 | 14 | 6 | 10 | 19 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 180 | 48 | 4 | 4 | 4 | 88 | 113 | 88 | 403 | 204 | 390 | 407 | 54 | 125 | 54 | 54 | 125 | 54 | 126 | 76 |
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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