Weather at Sea
Night: Forecast for Baltic Sea valid 24 hours from 19:00 Dec 15 to 19:00 UTC Dec 16, 2018. Weather summary: at night southwestern part of High, by day reaching from south to Baltic Sea trough of Low. Warnings: Northern Baltic, Northern Gulf of Riga, Moonsund: in morning southeast, east in gusts 15 m/s, in afternoon 14, in gusts 18 m/s. Wave height 1 to 2,5 m, on Moosund 0,7 to 1,2 m. Gulf of Finland: in afternoon southeast, east in gusts 15 m/s, in evening to 17 m/s. Wave height 1 to 2 m. Northern Baltic, Northern Gulf of Riga, Moonsund: southeast, east wind at night 6 to 10, in gusts 13 m/s, in morning increasing 8 to 12, in gusts 15 m/s, in afternoon 9 to 14, in gusts 18 m/s. Wave height 1 to 2, in evening at sea to 2,5 m, on Moonsund 0,7 to 1,2 m. Locally some snow, by day reaching to sea new thicker area of snow and spreading to Gulfs. Visibility from moderate to good, in afternoon in intensive snow poor. Gulf of Finland: southeast, east wind 5 to 11, in afternoon increasing 7 to 12, in gusts 15, in evening to 17 m/s. Wave height 0,7 to 2 m. Locally some snow, in late evening reaching in western part thicker area of snow. Visibility from moderate to good, in evening in snow poor. Day:

Weather at lake Peipsi
Night: Southeast, east wind 2-7 m/s. Mainly dry. Visibility moderate. Air temperature -5..-8°C. Day: Southeast, east wind 4-9 m/s. Mainly dry. Visibility moderate. Air temperature -3..-5°C.

Source: Estonian weather service