For Koivusaari :
No gale warning.
The reliability of the situation is very good.
Very cloudy skies with short clear spells. No precipitation in the morning, drizzle followed by showers in the afternoon. In the evening, overcast skies.
Showers. ENE force 3 in the morning turning NNW force 2 in the evening. Gusts reaching 18 knots in the middle of the day. Smooth sea. Low, short swell from ESE. Excellent visibility becoming good in the evening.