Port Rhu surf break

Port Rhu surfForecast / Brittany – Morbihan / France

information circle12 Day Weather and Surf, issued 6 pm Wednesday 17 Dec 2025 CET
Forecast update in hr  min  s Forecast update imminent
Port Rhu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Port Rhu sea temperature is
12.2° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Port Rhu this week:

The surf forecast for Port Rhu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 4PM. The primary swell is predicted to be 5.0m and 19s period with a secondary swell of 2.1m and 19s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Port Rhu in the next 12 days are 5.0m 19s and forecast to arrive on Thursday (Dec 18) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Monday (Dec 22) at 10PM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Thu 18th Dec)16ft (5.0m) 19s
Best Surf 4PM (Thu 18th Dec)16ft (5.0m) 19s
Most Powerful 4PM (Thu 18th Dec)16ft (5.0m) 19s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 19mm), heaviest on Wed night. Very mild (max 15°C on Thu morning, min 11°C on Wed night). Winds decreasing (near gales from the SSW on Thu morning, light winds from the WSW by Fri afternoon).

Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Sat night. Very mild (max 12°C on Sat afternoon, min 7°C on Mon night). Winds decreasing (strong winds from the SW on Sun morning, calm by Mon night).

Wed
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
!
0
!
!
!
1
1
3
0
0
!
3
3
4
2
3
2
0
Swell
Height Map
Wave Height (m) & direction (?)
1.7
W
3
WSW
3.5
WSW
5
WSW
3
WSW
3.5
WSW
3.5
WSW
3
WSW
2.4
WSW
2
W
2.5
WSW
3
WSW
3.5
WSW
3
WSW
2.3
WSW
1.7
W
1.9
SSE
1.8
SW
1.9
SW
1.2
SSE
1.1
SSE
Period(s) (?)13121619171717161514131616161514710977
Wave
Graph
(?)Metric surfscale
Energy kJ (?)10182432666218128559275977056500723151509240252746194477923061212369554554131105
Wind
(km/h)
35
SSW
45
SSW
55
S
45
SSW
30
W
15
NW
15
W
15
S
25
S
40
SSE
5
N
45
SW
40
W
30
SE
30
ESE
25
ENE
10
NNE
5
NNW
10
SE
25
E
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
crosscross-
on
oncross-
on
oncrosscrosscross-
off
crosscross-
on
oncross-
off
offoffcross-
off
crosscross-
off
offcross-
off
High Tide
/ height (m)
3:35AM
3.80
3:54PM
3.74
4:09AM
3.93
4:28PM
3.83
4:42AM
4.04
5:01PM
3.88
5:16AM
4.10
5:35PM
3.90
5:50AM
4.12
6:09PM
3.87
6:25AM
4.11
6:44PM
3.81
7:01AM
4.06
Low Tide
/ height (m)
9:15PM
0.90
9:39AM
0.81
9:55PM
0.79
10:19AM
0.69
10:33PM
0.71
10:58AM
0.61
11:11PM
0.65
11:36AM
0.58
11:47PM
0.63
12:13PM
0.59
12:24AM
0.65
12:51PM
0.63
1:01AM
0.71
Wed
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Sunrise--8:55--8:55--8:56--8:56--8:56--8:57--8:57
Sunset5:22--5:22--5:22--5:22--5:22--5:23--5:23--
cloud
mod rain
light rain
mod rain
light rain
part cloud
clear
clear
cloud
rain showers
heavy rain
light rain
rain showers
rain showers
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
Rain (mm)
-7273----116111-------
Temp. °C12131512131112111112111010118878998
Feels °C (?)544467874541451136643
  • 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 Port Rhu Surf forecast

The above surf forecast table for Port Rhu provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Port Rhu can be found by selecting the local surf guide option on the grey menu. Our Port Rhu 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 Rhu) 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 Rhu 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 Rhu is 31 km (19 miles) from the city of Lanester. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lanester. Lanester has rooms for a wide range of budgets as well as car hire and transport links.

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