Surf Forecasts:
Belle Ile surf forecast from 31 Jul 2026:
- Most powerful swell: Monday 3 Aug, 8PM (local time) - 3.5ft (1.1m), 9s period, W swell with 184 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 1.1m 9s and forecast to arrive on Monday (Aug 03) at 8PM. 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 | 8PM (Mon 3rd Aug) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for Belle Ile over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on offer for Belle Ile.
Honestly, it's a tough stretch ahead. The forecast is a bit of a bummer for the next couple of weeks. We've got a long dry spell on the cards, with nothing really worthwhile for the first week. The first sign of anything surfable doesn't show up until Saturday the 8th of August, and even then, it's just barely a pulse. The energy is weak, barely registering with a combined energy of just 66 (moderate wave energy). The swell is a short, weak 3 ft from the west, with a period of only 6 seconds. That's a messy, weak windswell, but at least the morning wind is clean, coming from the northeast as a cross-offshore breeze. It's surfable, but very ordinary.
The little glimmer in this whole period is Sunday the 9th of August. The morning sees a 3 ft swell from the west, with a period of 9 seconds, and a clean, moderate offshore wind from the east. The combined energy climbs to 125 (moderate wave energy), which is the best we'll see. It's not big, but it's clean. Then, in the afternoon, the wind goes completely glassy, calm from the southwest. The swell holds at 3 ft. It's still not a standout by any stretch, but it's the only time in the whole 16 days we get a clean, glassy window. For a beginner, this tiny wave is manageable, but the crowds are a possibility, so you might have some company.
Beyond that, it's back to the doldrums. The wind on the 10th turns onshore, and the swell drops right off. The rest of the window is a wasteland of poor conditions, onshore winds, and weak, short-period slop. The second week looks even worse, with the wind howling from the northwest, hitting 28 mph on the morning of the 15th of August, making it completely unsurfable.
Ultimately, if you're desperate for a paddle, the Sunday the 9th of August offers the best chance for a few clean, tiny waves, but it's a far cry from a proper session. The water temperature is around 68°F, which is a touch warmer than normal for this time of year, so at least you won't be cold while you're bobbing around.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun afternoon, min 15°C on Sat morning). Winds decreasing (fresh winds from the WNW on Fri afternoon, calm by Sun afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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) | WNW 7 | WNW 4 | WNW 6 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | W 8 | W 9 | W 8 | W 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 7 | W 7 | W 7 | WNW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 47 | 32 | 49 | 31 | 61 | 39 | 35 | 22 | 49 | 51 | 76 | 68 | 45 | 77 | 79 | 71 | 63 | 70 | 58 | 43 | 40 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | on | on | on | cross-on | on | on | on | on | cross-on | cross | on | cross-off |
High Tide | 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 | 10:25AM3.43m | 10:56PM3.39m | ||||||||
Low Tide | 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 | 4:58PM1.01m | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — |
 | — | — | 9:47 | — | — | 9:46 | — | — | 9:45 | — | — | 9:44 | — | — | 9:43 | — | — | 9:40 | — | — | 9:39 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 21 | 17 | 20 | 21 | 19 | 26 | 25 | 20 | 20 | 20 | 21 | 21 | 21 | 20 | 21 | 21 | 17 | 20 | 24 |
Feels °C | 15 | 15 | 14 | 14 | 15 | 16 | 13 | 21 | 21 | 17 | 17 | 16 | 22 | 21 | 21 | 20 | 20 | 18 | 15 | 15 | 20 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | W 12 | WNW 6 | W 10 | W 9 | W 9 | W 8 | W 8 | W 10 | W 8 | W 9 | W 8 | W 8 | WSW 8 | WSW 7 | WSW 7 | W 10 | W 10 | W 7 | W 10 | WNW 6 |
| kJ | 47 | 3 | 49 | 31 | 61 | 39 | 35 | 22 | 49 | 51 | 76 | 68 | 45 | 77 | 79 | 71 | 8 | 8 | 58 | 17 | 40 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 12 | W 11 | WNW 7 | — | WNW 5 | WNW 7 | WSW 8 | NW 4 | W 10 | — | NW 7 | W 9 | W 9 | WSW 8 | — | — | — | W 10 | W 10 | W 10 |
| kJ | 6 | 3 | 10 | 17 | — | 9 | 4 | 7 | 5 | 8 | — | 2 | 27 | 27 | 6 | — | — | — | 19 | 18 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | W 9 | NW 7 | — | NW 7 | — | NNE 3 | NW 6 | — | — | — | W 3 | — | — | — | — | — | W 11 | — | W 10 |
| kJ | — | — | 6 | 8 | — | 2 | — | 1 | 2 | — | — | — | 1 | — | — | — | — | — | 9 | — | 17 |
Wind waves Height (m) Direction Period (s) | NNE 3 | WNW 4 | NNE 4 | NNE 3 | NW 3 | NE 4 | ENE 4 | WNW 6 | N 3 | WNW 6 | W 4 | WNW 4 | — | — | — | — | WSW 7 | W 7 | — | W 7 | — |
| kJ | 3 | 32 | 11 | 7 | 3 | 21 | 13 | 4 | 1 | 4 | 9 | 9 | — | — | — | — | 63 | 70 | — | 43 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 90 | 1251 | 117 | 21 | 36 | 119 | 277 | 347 | 1 | 87 | 359 | 44 | 101 | 101 | 101 | 90 | 339 | 36 | 29 | 44 | 458 |
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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