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Surf Forecasts:

Port Blanc surf break

Port Blanc surfForecast / Brittany – Morbihan / France

information circle12 Day Weather and Surf, issued 6 am Monday 12 Jan 2026 CET
Forecast update in hr  min  s Forecast update imminent
Port Blanc surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Port Blanc sea temperature is
9.1° C
 (Which is 2.5°C colder than average for this time of year)

Best Forecast Surf Conditions for Port Blanc this week:

The surf forecast for Port Blanc over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jan 13) at 4PM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 1.5m and 11s. Another secondary swell of 1.0m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Port Blanc in the next 12 days are 3.5m 17s and forecast to arrive on Thursday (Jan 15) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Tuesday (Jan 13) at 10AM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Tue 13th Jan)5.5ft (1.7m) 12s
Best Surf 4PM (Fri 16th Jan)10ft (3.0m) 16s
Most Powerful10PM (Thu 15th Jan)11ft (3.5m) 17s

Table - best surf conditions forecast for Port Blanc over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 11mm), heaviest on Mon morning. Very mild (max 13°C on Mon morning, min 9°C on Wed afternoon). Winds decreasing (gales from the SW on Mon morning, light winds from the N by Wed morning).

Days 3-6 Weather Summary Moderate rain (total 16mm), heaviest on Fri morning. Very mild (max 12°C on Thu morning, min 6°C on Sat night). Winds decreasing (near gales from the SW on Thu afternoon, light winds from the SSE by Sat afternoon).

Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
4
0
4
0
0
0
0
0
0
!
!
!
4
4
3
2
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
4.5
SW
4
SW
3
WSW
2.4
WSW
1.7
WSW
2
WSW
1.8
WSW
1.6
WSW
1.7
WSW
2.5
SW
4
SW
2.3
WSW
2.5
W
3
WSW
3.5
WSW
3
WSW
2.5
W
2
W
1.5
W
1.3
W
0.8
W
Period(s) (?)11121111121214131371017161616151413121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)49044834216714117311024137490588075426902783351948956423408527721314625403149
Wind
(km/h)
55
SSW
50
SW
25
SSW
35
S
15
S
25
SW
10
NNE
20
WNW
30
SW
45
SSW
55
SW
25
W
25
SW
20
SW
15
SW
10
E
10
SSE
20
E
20
E
10
SE
25
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		crosscross-
off		cross-
on		cross-
off		oncross-
on		crosscross-
on		oncross-
on		cross-
on		cross-
on		offcross-
off		offoffcross-
off		cross-
off
High Tide
/ height (m)
11:37AM
3.11
12:25AM
3.10
1:02PM
3.08
1:40AM
3.19
2:11PM
3.18
2:37AM
3.36
3:02PM
3.35
3:21AM
3.58
3:43PM
3.54
3:59AM
3.80
4:19PM
3.73
4:34AM
4.01
4:52PM
3.89
Low Tide
/ height (m)
5:54PM
1.43
6:29AM
1.49
6:59PM
1.45
7:36AM
1.42
8:01PM
1.36
8:34AM
1.25
8:54PM
1.18
9:23AM
1.04
9:39PM
0.98
10:06AM
0.82
10:20PM
0.77
10:45AM
0.62
10:57PM
0.58
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise8:56--8:56--8:56--8:56--8:55--8:53--8:53--
Sunset-5:44--5:45--5:45--5:46--5:49--5:50--5:52-
mod rain
light rain
part cloud
cloud
light rain
part cloud
part cloud
cloud
light rain
light rain
light rain
part cloud
rain showers
rain showers
thunderstorm
rain showers
clear
clear
clear
clear
part cloud
Rain (mm)
63--1---112-5251-----
Temp. °C1313131313121010111211111010109109799
Feels °C (?)247998864304555674354
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Port Blanc 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.

View detailed surf forecast for Port Blanc at:
surf-forecast.com

Information about the Port Blanc Surf forecast

The above surf forecast table for Port Blanc provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Port Blanc can be found by selecting the local surf guide option on the grey menu. Our Port Blanc 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 (Port Blanc) 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 Port Blanc 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.

Port Blanc is 31 km (19 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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