Latest wave and weather information
Suomenlinna (wave buoy)
17.11.2025, 13:00-13:30
Significant wave height 0.3 m
Highest individual wave ~0.6 m
Waves from south (179°)
Wavelength 23 m
Wave period 3.9 s
Water temperature 8.0 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
17.11.2025, 13:00-13:30
Significant wave height 0.6 m
Highest individual wave ~1.2 m
Waves from west (248°)
Wavelength 61 m
Wave period 6.2 s
Water temperature 8.8 °C
Harmaja (weather station)
17.11.2025, 14:00-14:10
Wind speed 4.7 m/s
Gust 5.5 m/s
Wind from north (353°)
Air temperature 2.8 °C
Visibility 20.0 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
17.11.2025, 14:00-14:10
Wind speed 4.6 m/s
Gust 5.8 m/s
Wind from north (8°)
Air temperature 1.7 °C
Water temperature 5.8 °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.
