Surf Forecasts:
Belle Ile surf forecast from 6 Aug 2026:
- Best quality surf: Monday 10 Aug, 5PM (local time) - 3ft (0.9m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 5PM (local time) - 3ft (0.9m), 9s period, WNW swell with 134 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 5PM (local time) - 3ft (0.9m), 9s period with WNW swell.
Best Forecast Surf Conditions for Belle Ile this week:
The surf forecast for Belle Ile over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 5PM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.3m and 9s. Another secondary swell of 0.3m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Belle Ile in the next 16 days are 0.9m 9s and forecast to arrive on Monday (Aug 10) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Aug 08) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 10th Aug) | 3ft (0.9m) 9s |
| Best Surf | 5PM (Mon 10th Aug) | 3ft (0.9m) 9s |
| Most Powerful | 5PM (Mon 10th Aug) | 3ft (0.9m) 9s |
Table - best surf conditions forecast for Belle Ile over the next 16 days.
The Lowdown
Right folks, Rusty here. We’ve got a look at Belle Ile comin’ up, and straight up, the first week or so is gonna be a real test of patience. We’re lookin' at a whole lot of flat, weak energy for the early days, with the combined energy of all swells barely registering a pulse (71 down to 7). It’s gonna be tough.
The first whisper of any proper surfable energy doesn't show up until Monday, the 10th of August, and even then, it’s pretty ordinary with a combined swell energy of 158. That’s just barely gettin' your toes wet. A small 3ft swell from the WNW with a so-so 9-second period.
The best of the whole outlook, and it’s the only real standout, is that window on Thursday morning, the 20th of August. That’s the one to circle. We’re looking at a solid 6ft swell from the WSW, with a period of just 6 seconds. Now, that’s a short period, so it’s not gonna have that deep, groundswell punch, but the key here is the wind. It’s gonna be glassy. Dead calm. That means clean, smooth faces for Belle Ile (France). For a beginner spot, that’s about as good as it gets. The water temp is going to be average for the time of year.
Before that, Monday the 17th of August is worth a mention for the brave. The swell is gonna be pushin' 5ft on the Monday morning, with energy climbin' to 277, but the wind is onshore, so the quality is gonna be rough. That’s more of a kite-surfing kind of setup than somethin' for a clean paddle.
After that Thursday morning glass-off, the wind picks up again Friday, so that really is the one clean window in the whole 16-day stretch. It’s a long way off, so keep an eye on it, but that's your best bet.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sat afternoon, min 15°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed night, calm by Fri afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Mon afternoon. Warm (max 23°C on Sat night, min 20°C on Mon morning). Wind will be generally light. | ||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 7 | WNW 7 | WNW 7 | WNW 6 | W 10 | W 9 | W 9 | W 9 | W 9 | NW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 5 | NW 8 | WNW 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 157 | 53 | 45 | 30 | 16 | 15 | 7 | 7 | 7 | 24 | 33 | 32 | 32 | 31 | 134 | 39 | 17 | 26 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | on | cross-off | cross-off | cross-on | cross-off | off | cross-on | cross | cross-off | on | cross | cross | cross-off | glassy | off | cross-on | glassy |
High Tide | 9:55PM3.62m | 10:25AM3.43m | 10:56PM3.39m | 11:36AM3.29m | 00:22AM3.23m | 1:10PM3.29m | 2:02AM3.29m | 2:40PM3.50m | 3:21AM3.52m | 3:47PM3.83m | 4:21AM3.80m | 4:40PM4.17m | |||||||
Low Tide | 4:30AM0.88m | 4:58PM1.01m | 5:35AM1.06m | 6:13PM1.11m | 6:52AM1.14m | 7:35PM1.04m | 8:10AM1.03m | 8:51PM0.81m | 9:19AM0.78m | 9:55PM0.48m | 10:16AM0.48m | 10:49PM0.17m | |||||||
 | | |  | | | |  |  |  | | | | |  | | | | | |
 | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — |
 | 9:40 | — | — | 9:39 | — | — | 9:37 | — | — | 9:37 | — | — | 9:35 | — | — | 9:32 | — | — | 9:31 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 18 | 16 | 18 | 19 | 16 | 23 | 23 | 19 | 25 | 23 | 21 | 21 | 22 | 20 | 21 | 22 | 20 | 22 | 23 |
Feels °C | 12 | 14 | 13 | 14 | 12 | 19 | 18 | 14 | 21 | 19 | 19 | 19 | 19 | 21 | 20 | 23 | 20 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | W 10 | WNW 7 | W 10 | WNW 6 | W 10 | W 9 | WNW 4 | W 9 | ESE 3 | NW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 5 | NW 8 | WNW 8 | NW 4 |
| kJ | 8 | 53 | 17 | 30 | 16 | 15 | 4 | 7 | 1 | 24 | 33 | 32 | 32 | 31 | 15 | 39 | 17 | 26 | 7 |
Swell 2 Height (m) Direction Period (s) | W 10 | W 10 | — | W 10 | WNW 6 | WNW 6 | W 9 | NW 6 | W 9 | W 7 | — | W 9 | WSW 7 | WSW 7 | WSW 7 | NW 8 | WSW 7 | WSW 7 | WNW 8 |
| kJ | 8 | 18 | — | 17 | 6 | 3 | 7 | 1 | 7 | 4 | — | 1 | 9 | 9 | 9 | 17 | 4 | 4 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 3 | NW 6 | W 7 | — | W 9 | WSW 6 | — | WSW 3 | — | — | WSW 7 | WNW 4 | W 10 | W 9 |
| kJ | — | — | — | — | — | 1 | 1 | 1 | — | 2 | 4 | — | 2 | — | — | 9 | 1 | 8 | 6 |
Wind waves Height (m) Direction Period (s) | WNW 7 | — | WNW 7 | NE 4 | ENE 4 | N 3 | NE 4 | E 4 | — | NNW 2 | — | WSW 6 | — | NW 4 | WNW 9 | NE 3 | — | — | — |
| kJ | 157 | — | 45 | 15 | 9 | 1 | 17 | 21 | — | 1 | — | 15 | — | 5 | 134 | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 36 | 50 | 351 | 347 | 277 | 581 | 455 | 717 | 118 | 101 | 90 | 90 | 90 | 90 | 0 | 0 | 101 | 374 | 101 |
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.
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