World Resorts Finland Helsinki Weather

Helsinki 7 Days Forecast

17.05
sun
Day
52°F
NE 9 mph
Precip.
0%
Night
45°F
E 5 mph
Precip.
0%
18.05
mon
Day
55°F
W 5 mph
Precip.
0%
Night
55°F
SW 12 mph
Precip.
0%
19.05
tue
Day
55°F
W 9 mph
Precip.
0%
Night
46°F
NE 12 mph
Precip.
60%
20.05
wed
Day
57°F
NE 6 mph
Precip.
0%
Night
50°F
E 6 mph
Precip.
0%
21.05
thu
Day
57°F
N 6 mph
Precip.
0%
Night
48°F
E 6 mph
Precip.
79%
22.05
fri
Day
55°F
NE 8 mph
Precip.
100%
Night
52°F
SE 7 mph
Precip.
0%
23.05
sat
Day
63°F
NE 10 mph
Precip.
0%
Night
50°F
NE 6 mph
Precip.
100%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 43.9°F. The highest and lowest sea temperatures during the month were 46.8°F and 41.5°F.

Air temperature in Helsinki, °F

Precipitation total in Helsinki, in.

* Charts above show average data for the last 3 years.

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 27.9 °F
February 28.4 °F
December 33.7 °F
Rainiest months:
August 5 days
July 4 days
October 4 days
Windiest months:
December 12.7 mph
November 12.0 mph
January 11.7 mph

Helsinki on a weather map

Current weather
18:08
Helsinki
+52°F
NE 9 mph
Feels like: +50°F
Precip.: 0%
Places in Finland:
Name
°F
Vaasa
+50°F
Vantaa
+57°F
Imatra
+50°F
Kemi
+45°F
Koli National Park
+55°F
Kotka
+50°F
Lahti
+61°F
Oulu
+46°F
Porvoo
+50°F
Pori
+52°F
Saariselka
+46°F
Turku
+50°F
Helsinki
+52°F
Espoo
+55°F
Juvaskyla
+63°F
all places
24 Hours Forecast
Helsinki
Local time: 18:08
May 17, sunday
2100
48°F
NE
6 mph
May 18, monday
0000
45°F
E
5 mph
0300
43°F
SE
4 mph
0600
43°F
S
4 mph
0900
50°F
SW
4 mph
1200
55°F
W
5 mph
1500
59°F
W
6 mph
1800
57°F
SW
6 mph
Units of measurement: °C / °F