🌊 Seastate
← All seas

Gulf of Finland

ERA5 reanalysis 2015-2024, 10 years

Roughest in Nov

10%

Week 47 · 1.1 m

Calmest in Apr

0%

Week 16 · 0.6 m

Week by week

Days above 2.5 m

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Rough end of the range — At the same height a long swell is a slow roll and a short chop is a hammering. Anything under about 6 seconds is chop.

Typical wave height

0.9 m

Wave period

3.8 s

Mean wind

34 km/h

Air temperature

7°C

Sailings that cross this water