Latest wave and weather information
Suomenlinna (wave buoy)
15.07.2025, 22:00-22:30
Significant wave height 0.1 m
Highest individual wave ~0.2 m
Waves from south (163°)
Wavelength 80 m
Wave period 7.4 s
Water temperature 18.8 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
15.07.2025, 22:00-22:30
Significant wave height 0.1 m
Highest individual wave ~0.2 m
Waves from southwest (242°)
Wavelength 23 m
Wave period 3.9 s
Water temperature 18.9 °C
Harmaja (weather station)
15.07.2025, 22:50-23:00
Wind speed 3.2 m/s
Gust 4.2 m/s
Wind from north (3°)
Air temperature 20.4 °C
Visibility 19.9 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
15.07.2025, 22:50-23:00
Wind speed 3.3 m/s
Gust 3.7 m/s
Wind from northeast (27°)
Air temperature 22.6 °C
Water temperature 19.4 °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.
