Latest wave and weather information
Suomenlinna (wave buoy)
13.11.2025, 20:30-21:00
Significant wave height 0.5 m
Highest individual wave ~1.0 m
Waves from south (194°)
Wavelength 35 m
Wave period 4.8 s
Water temperature 9.0 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
13.11.2025, 20:30-21:00
Significant wave height 1.8 m
Highest individual wave ~3.6 m
Waves from southwest (243°)
Wavelength 80 m
Wave period 7.1 s
Water temperature 9.7 °C
Harmaja (weather station)
13.11.2025, 21:30-21:40
Wind speed 9.1 m/s
Gust 11.4 m/s
Wind from northwest (330°)
Air temperature 4.8 °C
Visibility 20.0 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
13.11.2025, 21:30-21:40
Wind speed 6.0 m/s
Gust 9.7 m/s
Wind from north (349°)
Air temperature 4.2 °C
Water temperature 8.0 °C
Longer data time series from the wave buoys and Harmaja weather station
are available from the Finnish Meteorological Institute's Open data service by
download or
machine-readable WFS interface.
