Weather at Sea
Night: Forecast for Baltic Sea valid 24 hours from 19:00 UTC Jun 20 to 19:00 UTC Jun 21 2018. Weather summary: trough of Low moving from Baltic Sea to east, by day reaching from Southern Scandinavia to Northern Baltic Low. Warnings: Northern Baltic, Gulf of Finland, Moonsund, Northern Gulf of Riga: southwest, west wind in gusts 15 to 18 m/s. Wave height 1,5 to 3 m, on Moonsund 0,7 to 1,2 m. Northern Baltic: mainly west, southwest 8 to 13, in gusts 15 m/s, at first to 18 m/s, by morning decreasing and backing around south 4 to 9 m/s, by day south, southeast 6 to 11, in evening increasing south, southwest again in gusts 15 m/s. Wave height 1,5 to 3 m tomorrow in evening 1 to 2 m. In many places rain. Visibility mainly moderate. Gulf of Finland: west, southwest 7 to 13, at first to 18 m/s, towards morning decreasing around south 5 to 11 m/s, in morning and forenoon variable 2 to 8 m/s, in afternoon from west gradually becoming southeast, south 6 to 11 m/s. Wave height at night 1,5 to 3 m. In many places rain, by day risk of thunder. Visibility mainly moderate. Northern Gulf of Riga, Moonsund: mainly west, southwest wind 8 to 12, in gusts 15 to 18 m/s, in morning decreasing southwest, south 4 to 9, in afternoon increasing again in gusts to 14 m/s. Wave height at night 1,5 to 2,5 m, on Moonsund 0,7 to 1,2 m, by day 1 to 2, on Moonsund to 1 m. In many places rain, in places rain is intensive, risk of thunder. Visibility manly moderate. Day:

Weather at lake Peipsi
Night: Mainly southwest 6-11 m/s. Wave height 0,7-1,2 m. After midnight rain. Visibility from moderate to good. Air temperature is 13..15°C. Day: Mainly southwest, south wind 5-10 m/s. Wave height 0,5-1,2 m. Rain showers and thunder. Visibility from moderate to good. Air temperature 18..20°C.

Source: Estonian weather service