Surf Forecasts:
Belle Ile surf forecast from 17 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 11AM (local time) - 3ft (0.9m), 16s period, W swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 11AM (local time) - 6ft (1.9m), 16s period, WNW swell with 1,730 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 2PM (local time) - 4.5ft (1.4m), 11s 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 Sunday (Sep 20) at 2PM. The primary swell is predicted to be 1.4m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Belle Ile in the next 16 days are 1.9m 16s and forecast to arrive on Friday (Sep 18) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Sep 22) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 20th Sep) | 4.5ft (1.4m) 11s |
| Best Surf | 11AM (Wed 23rd Sep) | 3ft (0.9m) 16s |
| Most Powerful | 11AM (Fri 18th Sep) | 6ft (1.9m) 16s |
Table - best surf conditions forecast for Belle Ile over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Very mild (max 18°C on Thu afternoon, min 16°C on Thu night). Winds decreasing (fresh winds from the W on Thu afternoon, light winds from the NNW by Sun morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Tue night, min 16°C on Mon morning). Wind will be generally light. | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||
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 10 | WNW 9 | WNW 16 | WNW 14 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 16 | W 14 | W 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 169 | 452 | 1730 | 1173 | 594 | 387 | 401 | 416 | 452 | 373 | 401 | 337 | 317 | 242 | 135 | 133 | 194 | 391 | 801 | 812 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | on | on | cross-on | cross | on | cross-off | cross-off | on | cross-off | off | glassy | cross-off | off | on | cross-off |
High Tide | 9:02PM3.22m | 9:20AM3.19m | 9:47PM2.90m | 10:17AM2.91m | 11:10PM2.66m | 12:23PM2.77m | 1:54AM2.69m | 2:22PM2.95m | 2:58AM2.94m | 3:12PM3.25m | 3:37AM3.23m | 3:47PM3.56m | 4:08AM3.53m | |||||||
Low Tide | 3:22PM1.05m | 3:41AM1.28m | 4:16PM1.38m | 4:41AM1.57m | 5:31PM1.60m | 6:05AM1.70m | 7:03PM1.61m | 7:33AM1.60m | 8:19PM1.40m | 8:38AM1.35m | 9:12PM1.10m | 9:25AM1.03m | 9:52PM0.77m | |||||||
 |  |  | | |  | |  | | | | | | | | | | | | | |
 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 8:00 | — | — |
 | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 16 | 16 | 17 | 17 | 17 | 16 | 19 | 21 | 18 | 23 | 23 | 17 | 23 | 24 | 19 | 23 | 22 |
Feels °C | 13 | 13 | 14 | 14 | 13 | 16 | 15 | 15 | 17 | 18 | 20 | 16 | 23 | 20 | 13 | 22 | 20 | 16 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | WNW 16 | WNW 14 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 16 | W 14 | W 13 |
| kJ | 169 | 452 | 1730 | 1173 | 594 | 387 | 401 | 416 | 452 | 373 | 401 | 337 | 317 | 242 | 135 | 133 | 194 | 391 | 801 | 812 |
Swell 2 Height (m) Direction Period (s) | — | W 16 | — | — | — | — | — | — | — | — | — | — | E 3 | — | — | SE 4 | W 18 | WNW 11 | W 10 | — |
| kJ | — | 21 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 4 | 25 | 150 | 120 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 4 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | NE 2 | E 3 | — | NE 3 | E 4 | — | NE 2 | E 4 | — | N 3 |
| kJ | 89 | — | — | — | — | — | — | — | — | — | 1 | 5 | — | 5 | 9 | — | 1 | 6 | — | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 90 | 33 | 36 | 148 | 44 | 101 | 101 | 36 | 21 | 87 | 29 | 29 | 45 | 29 | 0 | 0 | 29 | 0 | 68 | 29 |
Best forecast wave conditions in Morbihan - Brittany | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 Belle Ile 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 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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