World Resorts Finland Helsinki Weather

Helsinki Sea Temperature in July

Average sea water temperature in July:
+61.9°F
Minimum sea water temperature in July: 75.7°F
Maximum sea water temperature in July: 51.6°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 63.2°F. The highest and lowest sea temperatures during the month were 74.5°F and 54.0°F.

Monthly sea water temperature in Helsinki, °F

Which Finland resorts have warmest sea in July?

Place name July 2025 July 2024
Oulu 67.6°F 65.5°F
Lahti 67.4°F 67.9°F
Lappeenranta 67.1°F 69.3°F
Savolinna 66.8°F 68.0°F
Imatra 66.6°F 66.8°F
Juvaskyla 66.2°F 68.8°F
Koli National Park 65.8°F 67.1°F
Vaasa 65.6°F 66.1°F
Kemi 65.2°F 65.4°F
Seinajoki 65.1°F 64.1°F
Pori 65.0°F 66.0°F
Kotka 64.6°F 66.4°F
Porvoo 64.6°F 66.1°F
Turku 64.0°F 65.7°F
Espoo 63.3°F 63.6°F
Helsinki 63.2°F 63.6°F
Vantaa 62.8°F 63.2°F
Saariselka 56.3°F 57.4°F

Best time for vacation in Helsinki

Sunniest months:
June 15 days
July 15 days
May 14 days
Warmest months:
July 68.7 °F
August 67.1 °F
June 63.3 °F
Warmest sea temp:
August 63.2 °F
July 61.9 °F
September 58.8 °F
Coldest months:
January 28.4 °F
February 29.1 °F
December 33.5 °F
Rainiest months:
August 5 days
July 4 days
October 4 days
Windiest months:
December 12.7 mph
November 12.0 mph
January 11.8 mph

Helsinki on a weather map

Helsinki
+39°F
N 7 mph
Feels like: +36°F
Precip.: 0%
Places in Finland:
Name
°F
+39°F
+39°F
+32°F
+39°F
+37°F
+37°F
+36°F
+39°F
+18°F
+36°F
+41°F
+39°F
+39°F
+36°F
24 Hours Forecast
Helsinki
Local time: 10:24
December 05, friday
1200
39°F
N
6 mph
1500
39°F
N
5 mph
1800
39°F
NW
6 mph
2100
41°F
NW
6 mph
December 06, saturday
0000
41°F
NW
6 mph
0300
41°F
NW
7 mph
0600
39°F
W
9 mph
0900
41°F
W
11 mph
Units of measurement: °C / °F