Latest wave and weather information
Suomenlinna (wave buoy)
19.07.2025, 01:30-02:00
Significant wave height 0.1 m
Highest individual wave ~0.2 m
Waves from southeast (120°)
Wavelength 23 m
Wave period 3.9 s
Water temperature 18.5 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
19.07.2025, 01:30-02:00
Significant wave height 0.5 m
Highest individual wave ~1.0 m
Waves from east (103°)
Wavelength 32 m
Wave period 4.5 s
Water temperature 19.7 °C
Harmaja (weather station)
19.07.2025, 02:20-02:30
Wind speed 5.3 m/s
Gust 6.5 m/s
Wind from northeast (60°)
Air temperature 19.1 °C
Visibility 20.0 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
19.07.2025, 02:20-02:30
Wind speed 2.5 m/s
Gust 3.2 m/s
Wind from northeast (40°)
Air temperature 18.7 °C
Water temperature 18.8 °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.
