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Latest wave and weather information

Suomenlinna (wave buoy)


31.05.2025, 05:30-06:00
Significant wave height 0.5 m
Highest individual wave ~1.0 m
Waves from southwest (205°)
Wavelength 21 m
Wave period 3.6 s
Water temperature 11.3 °C

Plots: 2+2 days     14 days    

Data 14 days (csv)

Look at the present wave conditions.

Information by SMS: send BUOY SUOMENLINNA to 16161 (0,85€/message).

Helsinki open sea (wave buoy)


31.05.2025, 05:30-06:00
Significant wave height 1.0 m
Highest individual wave ~2.0 m
Waves from west (248°)
Wavelength 24 m
Wave period 3.9 s
Water temperature 10.1 °C

Plots: 2+2 days     14 days    

Data 14 days (csv)

Harmaja (weather station)


31.05.2025, 06:30-06:40
Wind speed 9.1 m/s
Gust 11.2 m/s
Wind from southwest (242°)
Air temperature 9.4 °C
Visibility 22.1 km

Plots: 2 days     14 days    

Data 14 days (csv)

See also the Finnish Meteorological Institute's forecast

Kruunuvuorenselkä (weather station)


31.05.2025, 06:30-06:40
Wind speed 7.9 m/s
Gust 9.1 m/s
Wind from southwest (244°)
Air temperature 9.3 °C
Water temperature 11.4 °C

Plots: 2 days     14 days    

Data 14 days (csv)

Kruunuvuorenselkä (water temperature)


31.05.2025, 06:30-06:40
Water temperature (-1.1m) 11.4 °C
Water temperature (-2.8m) 11.2 °C
Water temperature (-5.3m) 11.2 °C
Water temperature (-7.3m) 11.1 °C
Water temperature (-9.6m) 10.0 °C

Plots: 2 days     14 days     12 months

Data 14 days (csv)