Hanko, Finland

Full City Profile

9,962 Population 31/sq mi density

46 ft Elevation 14 meters

42°F Avg Temperature 6°C

Hanko has a cool climate with an average annual temperature of 42°F (6°C). Winters average 27°F in January while summers reach 62°F in July. The area gets 293 sunny days per year. Annual precipitation totals 23.7 inches. The area receives 6.9 inches of snow annually.

Temperature

27°F Jan (-3°C) 62°F Jul (17°C)

Annual Average	42.4°F
	21% below US avg
January Average	27°F (-3°C)
July Average	62°F (17°C)
Sunny Days	293 days/yr

Geography

Elevation	46 ft (14 m)
Area	324.9 sq mi (841.5 km²)
Population Density	31/sq mi
Coordinates	59.8333°N, 22.9500°W
Timezone	Europe/Helsinki

Precipitation & Snow

Annual Rainfall 23.7"

38% below US avg

Snowfall 6.9"

Wettest Month (Oct) 2.72"

Driest Month (May) 1.22"

Air Quality

Earthquake History

8 earthquakes (M2.5+) within 150 km since 1990. Strongest: M2.8. Most recent: M2.7 on May 12, 2005.

Mar 9, 2005	56 km ESE of Kökar, Aland Islands	M2.8	66 km
May 12, 2005	29 km SSE of Hanko, Finland	M2.7	29 km
May 12, 2005	28 km SSE of Hanko, Finland	M2.7	29 km
May 12, 2005	28 km SE of Hanko, Finland	M2.7	29 km
May 24, 1995	8 km ENE of Nagu, Finland	M2.7	66 km
Mar 9, 2005	Baltic Sea	M2.6	43 km
Mar 9, 2005	30 km SSW of Dragsfjärd, Finland	M2.6	36 km
Mar 9, 2005	49 km SSW of Dragsfjärd, Finland	M2.5	50 km

Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	27°F (-3°C)	1.8 in
February	25°F (-4°C)	1.3 in	Coldest
March	29°F (-2°C)	1.5 in
April	36°F (2°C)	1.4 in
May	47°F (8°C)	1.2 in	Driest
June	56°F (14°C)	1.5 in
July	62°F (17°C)	2.3 in	Warmest
August	61°F (16°C)	2.6 in
September	53°F (12°C)	2.4 in
October	45°F (7°C)	2.7 in	Wettest
November	37°F (3°C)	2.7 in
December	31°F (-0°C)	2.4 in

Hanko has a seasonal temperature swing of 37°F / from 25°F in February to 62°F in July. Total annual precipitation is 23.8 inches, with October being the wettest month (2.7") and May the driest (1.2").

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