Latest wave and weather information
Suomenlinna (wave buoy)
04.07.2025, 05:30-06:00
Significant wave height 0.8 m
Highest individual wave ~1.6 m
Waves from south (196°)
Wavelength 37 m
Wave period 4.9 s
Water temperature 11.3 °C
Look at the present wave conditions.
Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).
Helsinki open sea (wave buoy)
04.07.2025, 05:30-06:00
Significant wave height 3.2 m
Highest individual wave ~6.4 m
Waves from southwest (239°)
Wavelength 118 m
Wave period 8.7 s
Water temperature 10.5 °C
Harmaja (weather station)
04.07.2025, 06:20-06:30
Wind speed 14.7 m/s
Gust 18.4 m/s
Wind from west (281°)
Air temperature 12.9 °C
Visibility 20.0 km
See also the Finnish Meteorological Institute's forecast
Kruunuvuorenselkä (weather station)
04.07.2025, 06:20-06:30
Wind speed 11.7 m/s
Gust 15.8 m/s
Wind from northwest (297°)
Air temperature 13.5 °C
Water temperature 12.1 °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.
