Surf Forecasts:
Mewslade Bay surf forecast from 17 Jun 2026:
- Most powerful swell: Saturday 20 Jun, 1AM (local time) - 4.5ft (1.4m), 8s period, WSW swell with 232 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 1.4m 8s and forecast to arrive on Saturday (Jun 20) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Jun 23) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sat 20th Jun) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Mewslade Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Thu morning, min 14°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sun afternoon, min 15°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
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 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 10 | WSW 10 | WSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 136 | 292 | 223 | 175 | 197 | 163 | 146 | 165 | 232 | 88 | 70 | 36 | 20 | 19 | 12 | 9 | 5 | 4 | 10 | 9 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | off | off | glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | off |
High Tide | 8:55PM8.58m | 9:22AM8.14m | 9:44PM8.37m | 10:11AM7.80m | 10:34PM8.02m | 11:02AM7.38m | 11:26PM7.57m | 11:55AM6.95m | 00:20AM7.10m | 12:51PM6.58m | 1:18AM6.69m | 1:52PM6.32m | 2:20AM6.40m | ||||||||
Low Tide | 2:38PM0.44m | 3:09AM0.36m | 3:28PM0.63m | 4:00AM0.63m | 4:18PM0.95m | 4:52AM1.00m | 5:10PM1.33m | 5:46AM1.41m | 6:05PM1.73m | 6:42AM1.80m | 7:03PM2.08m | 7:41AM2.10m | 8:05PM2.31m | ||||||||
 |  |  | | |  | | | | | | | | |  |  | | | | | | |
 | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — |
 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 18 | 18 | 17 | 18 | 18 | 15 | 15 | 17 | 17 | 19 | 23 | 23 | 22 | 22 | 21 | 22 | 23 | 21 |
Feels °C | 13 | 12 | 14 | 16 | 16 | 17 | 17 | 15 | 13 | 13 | 15 | 16 | 19 | 23 | 22 | 21 | 23 | 21 | 20 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | — | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 9 |
| kJ | 136 | 292 | 223 | 175 | 197 | 163 | 146 | — | 232 | 88 | 70 | 36 | 20 | 19 | 12 | 9 | 5 | 4 | 5 | 5 | 16 |
Swell 2 Height (m) Direction Period (s) | W 10 | — | — | — | — | — | — | — | — | W 8 | W 8 | W 7 | WSW 7 | W 9 | — | NW 4 | W 12 | W 11 | WSW 10 | WSW 10 | WSW 7 |
| kJ | 135 | — | — | — | — | — | — | — | — | 31 | 18 | 10 | 5 | 2 | — | 1 | 3 | 3 | 10 | 9 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 8 | — | — | — | W 7 | WSW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | 4 |
Wind waves Height (m) Direction Period (s) | WSW 6 | — | — | — | — | — | — | WSW 8 | — | — | — | — | — | ESE 2 | — | — | ESE 2 | NNW 2 | — | NW 3 | N 3 |
| kJ | 99 | — | — | — | — | — | — | 165 | — | — | — | — | — | 1 | — | — | 1 | 1 | — | 2 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 124 | 139 | 6 | 49 | 124 | 2 | 104 | 281 | 31 | 1 | 1 | 4 | 384 | 422 | 384 | 384 | 379 | 412 | 429 | 470 | 377 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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