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Belle Ile - Les Donnants Surf Forecast
/ Brittany – Morbihan (22 surf breaks) /
Surf Forecasts:
Belle Ile - Les Donnants surfForecast / Brittany – Morbihan / France
16 Day Weather and Surf, issued 7 pm Thursday 14 May 2026 CESTForecast update in hr min s Forecast update imminent
Belle Ile - Les Donnants surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Belle Ile - Les Donnants sea temperature is
15.4° C
(Which is 1.8°C warmer than normal for this time of year)Best Forecast Surf Conditions for Belle Ile - Les Donnants this week:
The surf forecast for Belle Ile - Les Donnants over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 2AM. The primary swell is predicted to be 1.8m and 13s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Belle Ile - Les Donnants in the next 16 days are 2.2m 13s and forecast to arrive on Wednesday (May 20) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (May 15) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 21st May) | 6ft (1.8m) 13s |
| Best Surf | 2AM (Thu 21st May) | 6ft (1.8m) 13s |
| Most Powerful | 5PM (Wed 20th May) | 7ft (2.2m) 13s |
Table - best surf conditions forecast for Belle Ile - Les Donnants over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Sun morning. Very mild (max 14°C on Sat night, min 10°C on Thu night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the WNW by Sat morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Mon night. Very mild (max 16°C on Mon night, min 12°C on Mon night). Winds decreasing (strong winds from the SSW on Mon night, light winds from the WSW by Wed afternoon). | ||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
NW 9 | WNW 9 | WNW 9 | NW 6 | WNW 8 | WNW 8 | WNW 8 | W 16 | WNW 14 | WNW 13 | WNW 12 | W 12 | WNW 11 | WSW 8 | WSW 8 | W 9 | W 10 | W 13 | W 13 | W 12 | W 12 | |
626 | 355 | 326 | 83 | 89 | 62 | 33 | 78 | 350 | 995 | 475 | 894 | 313 | 447 | 411 | 348 | 623 | 1654 | 1060 | 628 | 456 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross | cross-on | cross-on | on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | glassy | off | off | |
High Tide | 3:58AM4.13m | 4:24PM4.17m | 4:44AM4.32m | 5:07PM4.37m | 5:30AM4.40m | 5:51PM4.47m | 6:17AM4.36m | 6:37PM4.46m | 7:05AM4.21m | 7:25PM4.33m | 7:57AM3.96m | 8:17PM4.13m | 8:53AM3.67m | ||||||||
Low Tide | 9:47PM0.40m | 10:12AM0.17m | 10:34PM0.13m | 10:57AM0.02m | 11:20PM-0.05m | 11:42AM-0.02m | 00:08AM-0.11m | 12:29PM0.04m | 00:57AM-0.06m | 1:17PM0.19m | 1:49AM0.10m | 2:08PM0.40m | 2:44AM0.34m | 3:03PM0.65m | |||||||
 |  | |  | |  | |  |  |  | | | | | |  | | |  | | | |
 | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — |
 | 9:39 | — | — | 9:42 | — | — | 9:43 | — | — | 9:44 | — | — | 9:45 | — | — | 9:46 | — | — | 9:47 | — | 9:49 |
1 | — | — | 1 | — | — | 3 | 2 | — | 1 | 1 | — | 8 | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 13 | 13 | 10 | 13 | 14 | 12 | 13 | 13 | 14 | 14 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 14 | 19 |
2 | 5 | 8 | 4 | 4 | 7 | 10 | 8 | 8 | 6 | 7 | 7 | 9 | 10 | 10 | 11 | 12 | 15 | 16 | 11 | 17 | |
Swell 1 Height (m) Direction Period (s) | — | WNW 9 | — | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 14 | WNW 13 | WNW 12 | W 12 | WNW 11 | WNW 11 | WNW 10 | W 9 | W 10 | W 13 | W 13 | W 12 | W 12 |
 kJ | — | 355 | — | 73 | 89 | 62 | 33 | 77 | 350 | 995 | 475 | 894 | 313 | 161 | 83 | 348 | 623 | 1654 | 1060 | 628 | 456 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 16 | W 15 | WNW 13 | — | — | — | — | — | W 16 | W 15 | W 13 | W 15 | — | — | — | SE 3 |
| kJ | — | — | — | — | — | 5 | 17 | 54 | — | — | — | — | — | 5 | 4 | 14 | 267 | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 16 | — | — | — | — | — | — | — | W 18 | W 12 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 78 | — | — | — | — | — | — | — | 7 | 46 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 9 | N 4 | WNW 9 | NW 6 | — | — | W 4 | — | W 7 | W 13 | W 6 | W 7 | SW 6 | WSW 8 | WSW 8 | SW 7 | — | — | — | ESE 3 | — |
| kJ | 626 | 17 | 326 | 83 | — | — | 19 | — | 120 | 749 | 139 | 154 | 184 | 447 | 411 | 102 | — | — | — | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 36 | 44 | 44 | 101 | 348 | 87 | 43 | 148 | 44 | 156 | 206 | 220 | 417 | 436 | 101 | 101 | 93 | 0 | 0 | 0 |
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 - Les Donnants 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 - Les Donnants Surf forecast
The above surf forecast table for Belle Ile - Les Donnants 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 - Les Donnants can be found by selecting the local surf guide option on the grey menu. Our Belle Ile - Les Donnants 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 - Les Donnants) 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 - Les Donnants 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 - Les Donnants is 48 km (30 miles) from Lorient. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lorient. Lorient has rooms for a wide range of budgets as well as car hire and transport links.
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