- Forecast
- Maps
- Live
- Weather State
- Spot Information
Barmouth Surf Forecast
/ Wales – Mid (13 surf breaks) /
Barmouth surfForecast / Wales – Mid / UK
12 Day Weather and Surf, issued 6 am Saturday 02 Aug 2025 BST
Best Forecast Surf Conditions for Barmouth this week:
The most powerful waves expected at Barmouth in the next 12 days are 2.2m 7s and forecast to arrive on Monday (Aug 04) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Tuesday (Aug 05) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Mon 4th Aug) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Barmouth over the next 12 days.
Short Range Forecast Moderate rain (total 17mm), heaviest on Mon morning. Very mild (max 19°C on Sun afternoon, min 13°C on Mon night). Winds increasing (calm on Sun afternoon, strong winds from the WSW by Mon morning). | Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Thu morning. Very mild (max 18°C on Wed afternoon, min 14°C on Tue morning). Winds decreasing (fresh winds from the WNW on Tue morning, calm by Tue night). | ||||||||||||||||||||
Saturday 02 | Sunday 03 | Monday 04 | Tuesday 05 | Wednesday 06 | Thursday 07 | Friday 08 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 3 | 4 | 5 | 5 | 6 | 7 | 5 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 5 | 4 | 7 | 7 | 4 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 1 | 1 | 3 | 12 | 27 | 10 | 187 | 231 | 73 | 108 | 42 | 7 | 4 | 1 | 1 | 12 | 56 | 12 | 31 | 12 | 16 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross | on | on | cross- on | cross- on | cross | cross- on | glass | cross- on | cross- on | cross- on | on | on | cross- off | on | cross- on | on |
High Tide / height (m) | 2:48PM 3.46 | 3:09AM 3.47 | 3:53PM 3.33 | 4:21AM 3.32 | 5:26PM 3.38 | 5:58AM 3.39 | 6:42PM 3.64 | 7:03AM 3.63 | 7:29PM 3.97 | 7:48AM 3.93 | 8:09PM 4.32 | 8:27AM 4.22 | 8:47PM 4.65 | ||||||||
Low Tide / height (m) | 9:31PM 2.03 | 10:33AM 2.03 | 11:06PM 2.11 | 12:01PM 2.01 | 12:34AM 2.00 | 1:08PM 1.87 | 1:37AM 1.77 | 2:01PM 1.67 | 2:28AM 1.52 | 2:48PM 1.47 | 3:15AM 1.26 | 3:33PM 1.28 | 3:59AM 1.03 | ||||||||
Saturday 02 | Sunday 03 | Monday 04 | Tuesday 05 | Wednesday 06 | Thursday 07 | Friday 08 | |||||||||||||||
| Sunrise | 5:35 | - | - | 5:37 | - | - | 5:37 | - | - | 5:39 | - | - | 5:41 | - | - | 5:43 | - | - | 5:45 | - | - |
| Sunset | - | 9:07 | - | - | 9:06 | - | - | 9:04 | - | - | 9:01 | - | - | 9:00 | - | - | 8:59 | - | - | 8:57 | - |
 | |  |  |  |  |  | |  | | | | |  |  |  | | | | | | |
Rain (mm) | - | - | 1 | 2 | - | - | 13 | 1 | - | - | - | - | - | - | 2 | 5 | - | - | - | - | - |
| Temp. °C | 15 | 15 | 16 | 18 | 19 | 16 | 18 | 19 | 16 | 15 | 17 | 16 | 17 | 18 | 16 | 16 | 17 | 16 | 17 | 16 | 15 |
| Feels °C (?) | 14 | 13 | 15 | 16 | 17 | 15 | 13 | 15 | 11 | 10 | 13 | 15 | 16 | 16 | 15 | 13 | 17 | 17 | 17 | 14 | 13 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - Mid
Continuing clean conditions at Barmouth (calm at Machynlleth 18 km from Barmouth). 0.1m 5s windswell from the W to make surfable waves.
18 km away, 1 h 45 min ago
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 Barmouth 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 Barmouth Surf forecast
The above surf forecast table for Barmouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Barmouth can be found by selecting the local surf guide option on the grey menu. Our Barmouth 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 (Barmouth) 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 Barmouth 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.
Barmouth is 22 km (14 miles) from Porthmadog. If you plan a holiday in Mid Wales, look for hotels and other accommodation in Porthmadog. Porthmadog has rooms for a wide range of budgets as well as car hire and transport links.
Nearest