Dame Jouanne surfForecast / Brittany – Ile et Vilaine / France

information circle12 Day Weather and Surf, issued 12 pm Tuesday 16 Dec 2025 CET
Forecast update in hr  min  s Forecast update imminent
Dame Jouanne surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dame Jouanne sea temperature is
11.7° C
(Which is normal for this time of year)


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 Wednesday (Dec 17) at 4AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.5m and 5s. 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 2.2m 21s and forecast to arrive on Thursday (Dec 18) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Dec 18) at 4PM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 17th Dec)3.5ft (1.1m) 14s
Best Surf10AM (Fri 19th Dec)7ft (2.2m) 18s
Most Powerful10AM (Thu 18th Dec)7ft (2.2m) 21s

Table - best surf conditions forecast for Dame Jouanne over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Wed night. Very mild (max 14°C on Thu afternoon, min 7°C on Wed morning). Winds increasing (calm on Tue night, near gales from the S by Thu afternoon).

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Sat night. Very mild (max 11°C on Fri afternoon, min 6°C on Fri night). Winds decreasing (strong winds from the SSE on Sat afternoon, calm by Sun night).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
2
2
0
0
2
0
5
4
4
4
2
0
2
4
4
4
3
3
0
Swell
Height Map
Wave Height (m) & direction (?)
1.3
WNW
1.2
WNW
1.3
WNW
1.1
WNW
0.9
WNW
1.2
WNW
2.2
WNW
2.3
WNW
2.3
WNW
2.2
WNW
2.1
WNW
1.7
WNW
1.3
WNW
1
WNW
1.3
WNW
1.6
WNW
1.6
WNW
1.7
WNW
1.5
WNW
1.3
WNW
0.8
WNW
Period(s) (?)151514141312212019181716141312151616141312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)656568621453273426412838843534296126111397630368458108712891397921545190
Wind
(km/h)
10
NNW
20
N
5
N
15
SSW
25
S
40
SSW
45
S
60
S
20
W
15
SW
15
SW
20
S
30
SSE
35
SSE
15
SSW
15
SSE
25
SSE
5
SE
10
SW
10
SSE
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
offoffoffcross-
off
offoffcross-
off
cross-
off
offcross-
on
High Tide
/ height (m)
4:58PM
9.59
5:22AM
9.79
5:42PM
9.90
6:03AM
10.16
6:22PM
10.21
6:41AM
10.50
6:59PM
10.46
7:16AM
10.76
7:35PM
10.64
7:51AM
10.95
8:09PM
10.76
8:24AM
11.07
8:43PM
10.80
Low Tide
/ height (m)
11:11AM
4.30
11:37PM
4.01
12:03PM
3.92
12:24AM
3.68
12:47PM
3.53
1:05AM
3.37
1:27PM
3.17
1:43AM
3.10
2:04PM
2.88
2:19AM
2.92
2:41PM
2.69
2:55AM
2.83
3:17PM
2.59
3:31AM
2.83
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise8:53--8:55--8:56--8:56--8:56--8:56--8:57--
Sunset-5:13--5:13--5:13--5:13--5:14--5:14--5:15-
light rain
part cloud
clear
part cloud
cloud
light rain
cloud
light rain
rain showers
clear
clear
part cloud
part cloud
cloud
light rain
cloud
light rain
light rain
rain showers
clear
cloud
Rain (mm)
1----5-11-----4-2213--
Temp. °C11111091012131412101199108998898
Feels °C (?)977444337675123445466
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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