Surf Forecasts:
Belle Ile surf forecast from 26 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 11AM (local time) - 1.5ft (0.5m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Sunday 30 Aug, 5AM (local time) - 8ft (2.4m), 10s period, W swell with 1,154 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 11AM (local time) - 1.5ft (0.5m), 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 Wednesday (Aug 26) at 11AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.6m and 5s. 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 2.4m 10s and forecast to arrive on Sunday (Aug 30) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Aug 26) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Wed 26th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 11AM (Wed 26th Aug) | 1.5ft (0.5m) 9s |
| Most Powerful | 5AM (Sun 30th Aug) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for Belle Ile over the next 16 days.
The Lowdown
G'day, it's Rusty here. Right, let's have a look at what's on the cards for Belle Ile. Gotta be straight with you – the next week and a half is pretty grim. We're looking at a solid 10 days of dull, choppy, or downright messy conditions before we get a sniff of anything decent. The swell energy is there, but the wind is just ruining it.
The first real chance to paddle out that's worth putting wax on the board is Wednesday, the 7th of September. That morning, the wind is light and clean, coming from the east-southeast, which is a nice cross-offshore breeze. The swell is a clean 6ft from the west with a period of 10 seconds, giving a moderate wave energy of 643. Conditions are looking very good, with clean lines. The water temp is about 67°F, which is a touch warmer than average for this time of year, so you might not even need a hood. It's a bit of a wait, but that morning is the standout.
Thursday, the 8th of September, also has a promising morning. The wind is a light cross-offshore from the north-northeast, keeping the 5ft west swell clean. The energy is moderate at 380. It's a good option if you missed the Wednesday session.
Before that, from the 26th of August right through to the afternoon of the 6th of September, it's a no-go zone. There are a few mornings with clean winds and small, surfable waves, like the 26th of August morning with 2ft, or the 3rd of September morning with 3ft, but the energy is weak and the conditions are just ordinary. The biggest issue is that from the 27th of August through to the 31st of August, the wind is hammering it from the southwest, smashing the swell into a choppy, cross-on mess, even with head-high plus waves. It's a write-off. For kiteboarders, the 28th, 29th, and 30th of August might be fun with all that strong wind and lumpy 7ft+ swell, but for paddle surfing, it's not worth it.
So, keep your eyes on that Monday the 7th of September dawn patrol. It's been a long flat spell, but it tends not to stay ugly forever. The forecast can change, but for now, that's our best bet.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Thu night. Warm (max 20°C on Wed morning, min 16°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 20°C on Sat afternoon, min 18°C on Sun night). Winds decreasing (strong winds from the SW on Sat afternoon, light winds from the W by Mon night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 9 | W 9 | WNW 8 | SW 6 | SW 7 | SW 7 | WSW 6 | W 9 | WNW 9 | WSW 7 | WSW 8 | W 10 | W 10 | W 10 | W 8 | W 9 | W 10 | W 10 | W 10 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 46 | 39 | 21 | 112 | 171 | 63 | 49 | 281 | 117 | 384 | 956 | 799 | 573 | 414 | 937 | 839 | 710 | 434 | 319 | 235 | 190 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | on | on |
High Tide | 4:52PM3.83m | 5:10AM3.73m | 5:22PM4.06m | 5:39AM3.92m | 5:52PM4.24m | 6:09AM4.06m | 6:22PM4.34m | 6:39AM4.15m | 6:53PM4.36m | 7:10AM4.16m | 7:26PM4.29m | 7:44AM4.09m | 8:01PM4.13m | ||||||||
Low Tide | 10:35AM0.75m | 11:00PM0.55m | 11:11AM0.50m | 11:34PM0.32m | 11:44AM0.30m | 00:07AM0.16m | 12:17PM0.18m | 00:39AM0.08m | 12:50PM0.13m | 1:12AM0.09m | 1:25PM0.17m | 1:47AM0.19m | 2:02PM0.30m | 2:25AM0.39m | |||||||
 |  |  | |  |  |  |  |  | | |  | | | | | | | | | | |
 | 7:22 | — | — | 7:24 | — | — | 7:24 | — | — | 7:26 | — | — | 7:28 | — | — | 7:28 | — | — | 7:31 | — | — |
 | — | — | 9:05 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — |
mm | — | 3 | 4 | — | — | 8 | 2 | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 20 | 19 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 20 | 19 | 20 | 20 | 19 | 18 | 19 | 19 | 18 | 18 | 19 |
Feels °C | 21 | 17 | 17 | 15 | 19 | 18 | 16 | 16 | 16 | 14 | 15 | 16 | 18 | 16 | 14 | 15 | 19 | 18 | 17 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 5 | SW 6 | ESE 4 | WNW 8 | SW 7 | W 8 | W 8 | W 11 | WNW 9 | WNW 8 | — | W 10 | W 10 | W 10 | — | W 9 | W 10 | W 10 | W 10 | — | — |
| kJ | 23 | 16 | 26 | 21 | 171 | 63 | 45 | 23 | 111 | 27 | — | 799 | 573 | 414 | — | 839 | 710 | 434 | 319 | — | — |
Swell 2 Height (m) Direction Period (s) | WNW 9 | W 9 | WNW 8 | W 12 | W 8 | WNW 10 | WNW 10 | W 11 | W 10 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 46 | 39 | 21 | 3 | 33 | 20 | 35 | 41 | 18 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 6 | — | W 11 | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 8 | — | 2 | — | 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 3 | — | SW 6 | — | SW 7 | WSW 6 | W 9 | WSW 8 | WSW 7 | WSW 8 | SW 8 | SW 7 | SW 5 | W 8 | — | — | — | — | W 9 | W 9 |
| kJ | — | 7 | — | 112 | — | 61 | 49 | 281 | 117 | 384 | 956 | 264 | 99 | 83 | 937 | — | — | — | — | 235 | 190 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 377 | 101 | 101 | 36 | 426 | 435 | 82 | 259 | 426 | 101 | 101 | 367 | 426 | 91 | 90 | 36 | 44 | 101 | 36 |
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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