Latest wave and weather information
Suomenlinna (wave buoy)
28.10.2025, 15:00-15:30
Significant wave height 0.4 m
Highest individual wave ~0.8 m
Waves from south (178°)
Wavelength 21 m
Wave period 3.6 s
Water temperature 9.3 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
28.10.2025, 15:30-16:00
Significant wave height 0.8 m
Highest individual wave ~1.6 m
Waves from south (179°)
Wavelength 20 m
Wave period 3.6 s
Water temperature 10.6 °C
Harmaja (weather station)
28.10.2025, 16:10-16:20
Wind speed 3.2 m/s
Gust 4.0 m/s
Wind from east (71°)
Air temperature 7.2 °C
Visibility 14.1 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
28.10.2025, 16:10-16:20
Wind speed 2.8 m/s
Gust 4.0 m/s
Wind from east (109°)
Air temperature 6.8 °C
Water temperature 8.3 °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.
