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Surf Forecasts:
Dame Jouanne surfForecast / Brittany – Ile et Vilaine / France
12 Day Weather and Surf, issued 1 pm Thursday 18 Sep 2025 CEST
Best Forecast Surf Conditions for Dame Jouanne this week:
The surf forecast for Dame Jouanne over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 5PM. The primary swell is predicted to be 0.9m and 12s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Dame Jouanne in the next 12 days are 1.8m 10s and forecast to arrive on Sunday (Sep 21) at 8AM. 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 (Sep 20) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Thu 18th Sep) | 3ft (0.9m) 12s |
| Best Surf | 11AM (Sun 21st Sep) | 6ft (1.8m) 9s |
| Most Powerful | 8AM (Sun 21st Sep) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Dame Jouanne over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 31°C on Fri afternoon, min 13°C on Sat night). Winds increasing (calm on Thu afternoon, fresh winds from the WSW by Sat afternoon). | Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Sun night. Very mild (max 18°C on Sun afternoon, min 11°C on Mon morning). Winds increasing (light winds from the NE on Sun night, fresh winds from the NE by Mon night). | ||||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 5 | 5 | 5 | 10 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 196 | 133 | 77 | 82 | 32 | 31 | 34 | 499 | 528 | 360 | 227 | 239 | 146 | 37 | 35 | 31 | 19 | 64 | 94 | 43 | 19 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | off | cross- off | off | cross- off | cross | cross- off | cross- off | cross- off | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross | cross- on | cross | cross | ||
High Tide / height (m) | 6:10PM 9.68 | 6:41AM 9.90 | 6:57PM 10.50 | 7:20AM 10.65 | 7:34PM 11.23 | 7:54AM 11.29 | 8:08PM 11.78 | 8:26AM 11.75 | 8:40PM 12.11 | 8:57AM 12.00 | 9:10PM 12.21 | 9:26AM 12.03 | 9:40PM 12.06 | 9:55AM 11.83 | |||||||||
Low Tide / height (m) | 1:02AM 3.32 | 1:23PM 3.24 | 1:46AM 2.54 | 2:03PM 2.52 | 2:23AM 1.95 | 2:37PM 1.99 | 2:55AM 1.60 | 3:08PM 1.69 | 3:25AM 1.47 | 3:37PM 1.61 | 3:53AM 1.56 | 4:04PM 1.74 | 4:19AM 1.83 | ||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||
| Sunrise | - | - | 7:48 | - | - | 7:50 | - | - | 7:52 | - | - | 7:54 | - | - | 7:54 | - | - | 7:56 | - | - | 7:58 | ||
| Sunset | 8:15 | - | - | 8:14 | - | - | 8:12 | - | - | 8:08 | - | - | 8:07 | - | - | 8:05 | - | - | 8:02 | - | - | ||
 |  |  | |  | | | | |  |  | | |  | | | |  | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | 4 | 10 | - | - | 2 | - | - | 2 | 2 | - | - | - | ||
| Temp. °C | 24 | 22 | 21 | 31 | 26 | 19 | 23 | 17 | 15 | 18 | 16 | 13 | 15 | 15 | 14 | 16 | 15 | 15 | 16 | 15 | 13 | ||
| Feels °C (?) | 25 | 22 | 17 | 27 | 24 | 16 | 19 | 11 | 12 | 16 | 13 | 9 | 10 | 8 | 8 | 9 | 10 | 9 | 8 | 8 | 9 | ||
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Brittany - Ile et Vilaine
Cross-off winds at Dame Jouanne are now cross-shore so expect speed-bumps in the surf (moderate winds from the WSW at Lancieux 4 km from Dame Jouanne). 0.9m 12s groundswell from the WNW to make surfable waves.
1 h 3 min ago
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 Dame Jouanne 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 Dame Jouanne Surf forecast
The above surf forecast table for Dame Jouanne provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Dame Jouanne can be found by selecting the local surf guide option on the grey menu. Our Dame Jouanne 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 (Dame Jouanne) 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 Dame Jouanne 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.
Are you planning a holiday in Ile et Vilaine - Brittany? If you are looking for accommodation near Dame Jouanne, camping, hotels and holiday cottages in Ile et Vilaine - Brittany, consider staying in Saint Malo which is 10 km (6 miles) away. Other places in and around Ile et Vilaine - Brittany where you can find information about places to rent, and car hire include Cancale which is 21 km (13 miles) away, Granville, Saint-Brieuc and Saint Helier.
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