Hanko Sea Temperature

(Today) 2022

6.6°C / 43.9°F

Current weather

4°C / 39°F
(overcast clouds)

Partly cloudy

Wind

19 mph

Humidity

72%


The measurements for the water temperature in Hanko, Southern Finland Province are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average water temp

Monthly average max / min water temperatures

The graph below shows the range of monthly Hanko water temperature derived from many years of historical sea surface temperature data.

Hanko average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Hanko
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -1 -0.5 -0.8 -0.7 -0.2 7.1 12.6 13.8 10.8 6.5 3.7 0.3
Max °C 4.4 1.3 1.4 3.9 11.8 17.3 21.3 21.6 18.9 14.3 10.8 8.3
Min °F 32.5 31.8 31.4 32.7 36.5 48.9 58.1 60 54.6 46.8 41.5 35.7
Max °F 37.8 33.6 33.6 37.2 48.4 59.1 66.8 67.8 62.7 54.6 48.6 43.7

The warmest water temperature is in August with an average around 63.9°F / 17.7°C. The coldest month is March with an average water temperature of 32.5°F / 0.3°C.