Belle Ile Surf Break

Lat Long: 47.32° N 3.25° W

Belle Ile Surf Forecast and Surf Report

Issued: 7 am 13 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: Friday 14 Aug, 2AM (local time) - 4ft (1.2m), 10s period, WNW swell with 294 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 1.2m 10s and forecast to arrive on Friday (Aug 14) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 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 Powerful 2AM (Fri 14th Aug)4ft (1.2m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what Belle Ile has in store for us over the next couple of weeks.

Right off the bat, I gotta be straight with you – this is a tough stretch. The forecast is a long, dry spell of nothing but poor surf conditions. From now until the 19th of August, there’s basically no surf worth paddling out for. The swell is small, the winds are mostly onshore or cross-onshore, and the water’s just a mess of chop and lumpy conditions. It’s a real bummer.

We’ve got a bit of a glimmer on the morning of Thursday, the 20th of August. The swell jumps up to 6 ft from the WNW with a period of 11 seconds, giving us a solid kick of energy (771). The wind is a clean cross-offshore from the NNE, which is a major positive. This is the one standout in the whole window. Belle Ile is an exposed spot, so that 6 ft groundswell will be pushing in with some real power. However, at that size, it’s going to be a bit much for beginners – this is more of a session for the experienced crew. The water temp is sitting at 68°, which is about average for this time of year. The downside? That clean morning window is short-lived. By Thursday afternoon, the wind swings onshore and strong, wrecking it.

After that, the rest of the 16-day run is a write-off again. The swell drops back down, and we’re looking at onshore winds and poor conditions through the end of August. The swell tries to build again on the 27th with an 8 ft WSW swell, but it’s accompanied by strong onshore winds and a short period of 8 seconds. That’s a big, messy, blown-out wall of water – more interesting for the kite surfers than anyone on a paddle board.

So, to be honest, if you’re hanging for a wave, keep your eyes on the morning of Thursday, the 20th of August. That’s your best bet. Everything else is a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Thu afternoon, min 18°C on Fri night). Winds increasing (light winds from the NW on Thu morning, fresh winds from the WNW by Fri night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sun night, min 17°C on Sun morning). Winds decreasing (strong winds from the WNW on Mon night, light winds from the NW by Tue morning).

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
AM
PM
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
0
0
0
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)
1
W
10
1
W
11
1.2
WNW
10
0.9
W
9
1.1
WNW
9
0.7
W
9
1.1
WNW
8
1
W
8
1.2
WNW
8
0.8
WNW
8
0.8
WNW
7
0.9
WNW
7
0.5
NW
7
0.5
WNW
7
0.8
WNW
6
0.4
WNW
8
0.6
WNW
8
0.7
NW
5
0.5
W
7
0.4
W
7
0.7
WNW
6
Wave Graph
Metric surfscale
Energy kJ
188
220
294
142
211
76
153
134
159
64
62
75
21
26
42
20
49
22
28
17
31
Wind (km/h)
15
NW
20
WNW
20
N
15
N
30
WNW
25
N
20
NNW
25
WNW
25
NNE
15
N
25
W
30
NNE
15
N
30
W
20
N
10
NW
30
W
20
NNW
10
NNW
25
WNW
25
N
Wind State
cross-on
on
cross
cross
on
cross
cross
on
cross-off
cross
on
cross-off
cross-off
on
cross
cross-on
on
cross
cross-on
on
cross
High Tide
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
9:30AM3.40m
9:51PM3.24m
Low Tide
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
4:04PM1.03m
4:28AM1.21m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
<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
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:29
9:27
9:24
9:22
9:22
9:20
9:17
 mm
1
Temp °C
27
28
28
20
26
27
20
22
25
18
22
25
19
23
24
18
21
23
20
20
21
Feels °C
25
24
23
18
21
21
19
19
22
16
18
21
17
18
18
17
18
21
21
21
17
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Belle Ile:

join our community of surf reporters

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 Belle Ile 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 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.

Nearest locationNearest