Sein Island 61.1
#3458 of 5753 surf spots in the world · France · Finistère · near Brest
Very consistent, wind is the enemy here, no off season.
Works all yearBig waveRemoteAdvanced
Surf score61.1 /100
Surfable days82% of the year
Clean days14% groundswell + friendly wind
Groundswell32% period 11 s+
Typical size2.1 m 7.0 ft median
Water14°C a 4/3 with boots
Best time to surf Sein Island
The best time to surf Sein Island is January, May, November. It rarely works. In November the water sits around 14°C, so pack a 4/3 with boots, and the typical wave is 3.3 m. The nearest airport is CWL (390 km) and the nearest town is Brest (48 km).
| Month | Surfable | Clean | Size | Water | Suit |
|---|---|---|---|---|---|
| Jan | 72% | 16% | 2.9 m | 11°C | 5/4 |
| Feb | 57% | 13% | 3.7 m | 10°C | 5/4 |
| Mar | 79% | 16% | 2.7 m | 11°C | 5/4 |
| Apr | 91% | 8% | 1.9 m | 13°C | 5/4 |
| May | 95% | 19% | 1.7 m | 15°C | 4/3 |
| Jun | 100% | 13% | 1.4 m | 16°C | 3/2 |
| Jul | 94% | 5% | 1.2 m | 18°C | 3/2 |
| Aug | 97% | 3% | 1.4 m | 17°C | 3/2 |
| Sep | 95% | 12% | 1.6 m | 16°C | 3/2 |
| Oct | 85% | 10% | 2.5 m | 16°C | 4/3 |
| Nov | 63% | 21% | 3.3 m | 14°C | 4/3 |
| Dec | 58% | 5% | 3.8 m | 13°C | 5/4 |
Why 61.1
Seven parts, each normalised 0 to 1 and weighted; the sum is scaled so the best spot in the world is 100.
Consistency 26%
25.1
Clean days 24%
7.9
Groundswell 12%
6.1
Season spread 10%
10.0
Wave size 8%
6.9
Water comfort 10%
0.9
Access 10%
2.6
The detail
Faces 120° with 94% open water around it. Friendly morning wind 44% of days. Mean peak period 10.7 s. Days over 3 m: 31%. Mellow days (0.4 to 1.2 m): 15%. Months that work: 12 of 12. Coordinates 48.033, -4.853 (OpenStreetMap).
Spots nearby
Baie des Trépassés France · score 61.6Pors Theolen France · score 59.7Saint Tugen France · score 62.6Lervily reef France · score 62.7
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