Harjavalta, Finland

Full City Profile

6,605 Population 99/sq mi density

121 ft Elevation 37 meters

40°F Avg Temperature 4°C

Harjavalta has a cool climate with an average annual temperature of 40°F (4°C). Winters average 22°F in January while summers reach 61°F in July. The area gets 292 sunny days per year. Annual precipitation totals 24.0 inches. The area receives 8.5 inches of snow annually.

Temperature

22°F Jan (-6°C) 61°F Jul (16°C)

Annual Average	40.0°F
	26% below US avg
January Average	22°F (-6°C)
July Average	61°F (16°C)
Sunny Days	292 days/yr

Geography

Elevation	121 ft (37 m)
Area	66.8 sq mi (172.9 km²)
Population Density	99/sq mi
Coordinates	61.3167°N, 22.1333°W
Timezone	Europe/Helsinki

Precipitation & Snow

Annual Rainfall 24.0"

37% below US avg

Snowfall 8.5"

Wettest Month (Aug) 2.99"

Driest Month (Feb) 1.22"

Air Quality

Earthquake History

1 earthquake (M2.5+) within 150 km since 1990. Strongest: M2.7. Most recent: M2.7 on May 24, 1995.

May 24, 1995	8 km ENE of Nagu, Finland	M2.7	122 km

Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	22°F (-6°C)	1.7 in
February	21°F (-6°C)	1.2 in	Coldest, Driest
March	28°F (-2°C)	1.3 in
April	37°F (3°C)	1.5 in
May	49°F (9°C)	1.2 in
June	57°F (14°C)	2.1 in
July	61°F (16°C)	2.9 in	Warmest
August	58°F (14°C)	3.0 in	Wettest
September	49°F (10°C)	2.4 in
October	41°F (5°C)	2.4 in
November	32°F (0°C)	2.3 in
December	26°F (-4°C)	1.9 in

Harjavalta has a seasonal temperature swing of 40°F / from 21°F in February to 61°F in July. Total annual precipitation is 24.0 inches, with August being the wettest month (3.0") and February the driest (1.2").

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