Latest wave and weather information
Suomenlinna (wave buoy)
08.08.2025, 18:00-18:30
Significant wave height 0.3 m
Highest individual wave ~0.6 m
Waves from south (192°)
Wavelength 20 m
Wave period 3.6 s
Water temperature 20.7 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
08.08.2025, 18:00-18:30
Significant wave height 0.5 m
Highest individual wave ~1.0 m
Waves from west (248°)
Wavelength 34 m
Wave period 4.7 s
Water temperature 19.8 °C
Harmaja (weather station)
08.08.2025, 19:10-19:20
Wind speed 1.1 m/s
Gust 1.8 m/s
Wind from west (287°)
Air temperature 17.1 °C
Visibility 20.0 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
08.08.2025, 19:10-19:20
Wind speed 1.3 m/s
Gust 2.3 m/s
Wind from west (282°)
Air temperature 17.2 °C
Water temperature 21.8 °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.
