Belle Ile Surf Break

Lat Long: 47.32° N 3.25° W

Belle Ile Surf Forecast and Surf Report

Issued: 7 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Belle Ile sea temperature is
19.8° C
0.6° 

Belle Ile surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Belle Ile surf forecast from 13 Aug 2026:

  • Most powerful swell: Thursday 13 Aug, 11PM (local time) - 4.5ft (1.3m), 10s period, WNW swell with 349 kJ wave energy.

Best Forecast Surf Conditions for Belle Ile this week:

The most powerful waves expected at Belle Ile in the next 16 days are 1.3m 10s and forecast to arrive on Thursday (Aug 13) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Aug 17) at 2AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Thu 13th Aug)4.5ft (1.3m) 10s

Table - best surf conditions forecast for Belle Ile over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s have a look at what’s coming our way.

Right now, it’s looking pretty bleak for the next week and a half. We’re in a real flat spell. There’s a solid 11-day stretch where you’d be wasting your time paddling out – the conditions are just too poor. The surf quality is consistently rated as poor, with a mix of onshore winds and weak energy.

The first real glimmer of hope doesn’t show up until Monday, 24 August. That morning at Belle Ile, we’ve got a bit of life. Swell is 4 ft from the W, with a period of 8 seconds, and the combined energy is moderate at 181. What’s interesting here is the wind – it’s a light cross-offshore breeze from the SE, which should keep the surface clean. It’s not going to be epic, but it’s the first surfable window we’ve had in ages. Just keep in mind the swell direction is from the W, and this spot really prefers a SW swell, so it might be a little wobbly.

The following afternoon, Monday afternoon, sees a bit more size at 5 ft from the WNW, with clean cross-offshore winds from the SSE. The energy picks up to 244. Still, it’s not the ideal direction for the break, and the period is only 8 seconds, so don’t expect any real grunt. It’s a beginner-friendly break that’s fairly consistent, but you might have some company as crowds are sometimes an issue here.

If you’re after a standout, honestly, this whole window is pretty ordinary. The best of a bad bunch is that Monday morning session – clean, rideable, and you’ll get a few. But don’t get your hopes up for anything special. The water temp is about average for the time of year, nothing unusual there.

After Monday, it gets messy again with strong winds and lumpy conditions, so that Monday window is your only real chance in the next 16 days. Keep an eye on it, but don’t book the day off work just yet.

- Rusty

Short Range Forecast

Some drizzle, heaviest during Fri night. Warm (max 29°C on Thu night, min 18°C on Fri night). Winds decreasing (strong winds from the WNW on Fri night, light winds from the WNW by Sat afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Sat night, min 16°C on Tue morning). Winds decreasing (fresh winds from the NNE on Sun night, calm by Tue morning).

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
W
10
1
W
10
1
W
11
1
W
10
0.9
W
9
1.2
WNW
9
0.8
W
9
1.1
WNW
8
1
W
8
1.4
NW
8
0.9
WNW
8
0.8
WNW
7
0.9
WNW
7
0.4
WNW
7
0.7
WNW
7
1
NW
5
0.5
W
8
0.8
WNW
7
0.5
W
6
Wave Graph
Metric surfscale
Energy kJ
146
188
220
194
142
248
99
153
134
210
88
70
73
17
41
45
30
65
21
Wind (km/h)
15
NW
15
WNW
20
W
20
N
15
NNW
35
WNW
25
N
15
N
20
W
25
NNE
15
NNW
25
WNW
30
N
15
N
35
W
20
NNE
0
N
20
W
20
NW
Wind State
cross-on
cross-on
on
cross
cross-on
on
cross
cross
on
cross-off
cross
on
cross-off
cross
on
cross-off
glassy
on
cross-on
High Tide
5:53AM4.20m
6:10PM4.59m
6:34AM4.26m
6:49PM4.60m
7:11AM4.23m
7:27PM4.47m
7:47AM4.10m
8:03PM4.24m
8:21AM3.91m
8:37PM3.92m
8:55AM3.67m
9:12PM3.58m
Low Tide
11:36PM-0.06m
11:50AM0.01m
00:20AM-0.18m
12:33PM-0.07m
1:01AM-0.16m
1:14PM-0.03m
1:41AM-0.02m
1:55PM0.13m
2:20AM0.22m
2:35PM0.38m
2:59AM0.54m
3:17PM0.69m
3:40AM0.88m
clear
clear
clear
clear
clear
clear
rain showers
cloud
part cloud
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:07
7:07
7:09
7:11
7:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:30
9:29
9:27
9:24
9:22
9:22
9:20
 mm
1
Temp °C
28
25
28
29
20
25
26
18
22
25
18
22
25
18
20
24
17
19
20
Feels °C
25
23
24
24
19
20
20
16
20
23
15
17
20
15
16
20
18
17
17
  • 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 Belle Ile Surf forecast

The above surf forecast table for Belle Ile 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 can be found by selecting the local surf guide option on the grey menu. Our Belle Ile 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) 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 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 is 48 km (30 miles) from the city of Ploemeur. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Ploemeur. Ploemeur has rooms for a wide range of budgets as well as car hire and transport links.

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