
Surf Forecasts:
Belle Ile surf forecast from 30 Jul 2026:
- Most powerful swell: Monday 3 Aug, 5PM (local time) - 3.5ft (1.0m), 9s period, W swell with 150 kJ wave energy.
Best Forecast Surf Conditions for Belle Ile this week:
The most powerful waves expected at Belle Ile in the next 16 days are 1.0m 9s and forecast to arrive on Monday (Aug 03) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Aug 02) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Mon 3rd Aug) | 3.5ft (1.0m) 9s |
Table - best surf conditions forecast for Belle Ile over the next 16 days.
The Lowdown
Alright, folks, Rusty again, switching over to feet and miles for those who think in inches. So, Belle Ile is looking pretty busted for the next couple weeks. We’ve got a massive dry spell of flat, small, and windy days with nothing worth a second look. The only faint hints of surf arrive in the second week of August, but it’s still nothing to write home about.
Right now, Thursday the 30th of July, we’re looking at a tiny 2 ft swell from the WNW, period a short 8 seconds. The combined energy is a weak 49, and we’ve got a cross-on breeze at 15 km/h. Just choppy, flat junk. Friday the 31st brings a bump to 3 ft but with a 7-second period, still onshore. All zeros on the scoreboard.
The whole first week of August is basically the same story. We get a couple of clean mornings – Saturday the 1st and Sunday the 2nd – with a light offshore breeze from the NE, but the swell is a pathetic 1 ft to 2 ft. Combined energy in the thirties. You’d be better off swimming. The water temp is 20°C, right around average for the time of year.
The first real, tiny window opens on Wednesday the 5th of August morning. It’s glassy, dead calm, with a 3 ft swell from the WSW. The period is only 6 seconds, so it’s weak, but the surface will be clean. The combined energy is low at 61. It’s surfable, but just barely.
Now, for the best day of the whole outlook: Sunday the 9th of August morning. Another glassy calm morning, with a 4 ft swell from the WSW, 7-second period. The combined energy hits a moderate 112. That’s the best you’re gonna get. The wind is dead calm, so the surface will be clean as a whistle. The swell direction isn’t a perfect match for the optimum SW, but it’s close enough. This is the standout, just keep your expectations low on the wave quality.
Monday the 10th of August morning keeps the swell around 4 ft from the W, 8-second period, combined energy 138, but the wind goes cross-on from the WNW, so it gets choppy again. The biggest size comes on Tuesday the 11th of August morning, with a 5 ft swell from the W, 9-second period, and the combined energy jumps to a strong 340. That’s the most powerful day, but the wind is a gentle cross-on from the SW, making it choppy. It’s also getting too big for beginners. For experienced guys, it’s the only day with any real grunt, but it’ll be messy.
After that, it fades back to tiny, weak swell and onshore wind through the end of the outlook. Friday the 14th of August morning has a clean offshore breeze from the NE, but the swell is a tiny 1 ft. Nothing doing.
So, your call. For clean but weak surf, hit the morning of Sunday the 9th of August. For some power despite the chop, try the morning of Tuesday the 11th of August. Otherwise, I’d say give it a miss.
– Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Fri night, min 15°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri night, light winds from the NW by Sat afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 19°C on Mon night). Winds increasing (calm on Sun afternoon, fresh winds from the W by Mon night). | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | WNW 8 | WNW 8 | NW 7 | WNW 4 | WNW 6 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | W 10 | W 9 | W 8 | W 8 | SW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 |
Wave Graph | ||||||||||||||||||||
26 | 25 | 54 | 30 | 40 | 31 | 61 | 39 | 35 | 22 | 47 | 67 | 150 | 68 | 45 | 79 | 91 | 34 | 37 | 22 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | on | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | on | on | cross-on | cross | cross-on | on | on | cross-on | cross |
High Tide | 6:18PM4.06m | 6:35AM3.84m | 6:49PM4.14m | 7:06AM3.88m | 7:20PM4.15m | 7:38AM3.88m | 7:53PM4.10m | 8:12AM3.83m | 8:28PM4.00m | 8:49AM3.74m | 9:07PM3.83m | 9:32AM3.60m | 9:55PM3.62m | |||||||
Low Tide | 00:36AM0.38m | 12:45PM0.39m | 1:10AM0.32m | 1:18PM0.37m | 1:43AM0.33m | 1:53PM0.41m | 2:18AM0.39m | 2:29PM0.51m | 2:56AM0.51m | 3:10PM0.65m | 3:38AM0.68m | 3:58PM0.83m | 4:30AM0.88m | |||||||
— | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | 9:50 | — | — | 9:47 | — | — | 9:46 | — | — | 9:45 | — | — | 9:44 | — | — | 9:43 | — | — | 9:40 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 17 | 19 | 21 | 17 | 20 | 21 | 19 | 26 | 24 | 20 | 20 | 20 | 20 | 21 | 21 | 19 | 20 | 21 |
Feels °C | 18 | 16 | 14 | 15 | 14 | 14 | 15 | 16 | 13 | 20 | 18 | 17 | 17 | 14 | 20 | 20 | 21 | 20 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | NW 7 | W 12 | WNW 6 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | W 10 | — | W 8 | W 8 | W 9 | W 8 | WSW 6 | WSW 6 | WSW 6 |
26 | 25 | 54 | 3 | 40 | 31 | 61 | 39 | 35 | 22 | 47 | 67 | — | 68 | 45 | 25 | 22 | 34 | 37 | 22 | |
Swell 2 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | W 12 | W 11 | NW 6 | — | WNW 5 | WNW 7 | WSW 8 | WNW 5 | WNW 5 | — | — | W 9 | W 9 | W 9 | W 8 | W 8 | W 7 |
17 | 8 | 6 | 3 | 10 | 10 | — | 9 | 4 | 7 | 9 | 2 | — | — | 15 | 15 | 23 | 19 | 10 | 9 | |
Swell 3 Height (m) Direction Period (s) | — | SW 4 | W 9 | — | W 9 | NW 7 | — | NW 7 | — | ESE 3 | WSW 8 | — | — | — | W 3 | — | — | — | W 10 | W 10 |
— | 1 | 6 | — | 6 | 8 | — | 2 | — | 1 | 6 | — | — | — | 2 | — | — | — | 8 | 18 | |
Wind waves Height (m) Direction Period (s) | W 3 | NW 4 | NNE 3 | WNW 4 | NNE 4 | NE 3 | NW 3 | NE 4 | ENE 4 | NW 6 | NNE 3 | NW 6 | W 9 | WNW 5 | — | SW 7 | WSW 7 | — | — | — |
2 | 21 | 1 | 30 | 11 | 6 | 2 | 24 | 13 | 6 | 1 | 6 | 150 | 30 | — | 79 | 91 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 90 | 158 | 118 | 90 | 117 | 21 | 173 | 33 | 119 | 347 | 33 | 50 | 341 | 90 | 90 | 101 | 36 | 0 | 524 | |
Best forecast wave conditions in Morbihan - Brittany | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
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Information about the Belle Ile Surf forecast
The above surf forecast table for Belle Ile provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Belle Ile can be found by selecting the local surf guide option on the grey menu. Our Belle Ile 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 (Belle Ile) 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 Belle Ile 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.
Belle Ile is 48 km (30 miles) from the city of Ploemeur. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Ploemeur. Ploemeur has rooms for a wide range of budgets as well as car hire and transport links.











