World Resorts Finland Helsinki Weather

Helsinki 7 Days Forecast

16.09
wed
Day
57°F
N 12 mph
Precip.
35%
Night
57°F
NE 9 mph
Precip.
59%
17.09
thu
Day
59°F
NE 14 mph
Precip.
24%
Night
52°F
E 5 mph
Precip.
39%
18.09
fri
Day
55°F
NE 13 mph
Precip.
68%
Night
55°F
NE 13 mph
Precip.
46%
19.09
sat
Day
59°F
NE 14 mph
Precip.
19%
Night
57°F
NE 17 mph
Precip.
45%
20.09
sun
Day
59°F
NE 14 mph
Precip.
21%
Night
50°F
NE 3 mph
Precip.
28%
21.09
mon
Day
55°F
S 8 mph
Precip.
28%
Night
46°F
SW 7 mph
Precip.
36%
22.09
tue
Day
54°F
SW 12 mph
Precip.
19%
Night
52°F
E 6 mph
Precip.
67%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 59.3°F. The highest and lowest sea temperatures during the month were 60.8°F and 56.8°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:
July 15 days
June 14 days
May 14 days
Warmest months:
July 68.5 °F
August 67.0 °F
June 63.2 °F
Warmest sea temp:
August 63.0 °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
19:49
Helsinki
+59°F
N 14 mph
Feels like: +55°F
Precip.: 68%
Places in Finland:
Name
°F
Vaasa
+57°F
Vantaa
+59°F
Imatra
+59°F
Kemi
+55°F
Kotka
+61°F
Lappeenranta
+59°F
Lahti
+55°F
Oulu
+54°F
Pori
+55°F
Saariselka
+45°F
Savolinna
+55°F
Turku
+55°F
Helsinki
+59°F
Espoo
+57°F
Juvaskyla
+55°F
all places
24 Hours Forecast
Helsinki
Local time: 19:49
September 16, wednesday
2100
59°F
N
14 mph
September 17, thursday
0000
57°F
NE
9 mph
0300
55°F
NE
9 mph
0600
55°F
NE
11 mph
0900
55°F
NE
10 mph
1200
59°F
NE
14 mph
1500
59°F
NE
14 mph
1800
57°F
E
11 mph
Units of measurement: °C / °F