Measurements:
°C
°F
Helsinki
8°F
S 15 mph
Feels like: -10°F
Precip: 0%
World Resorts Finland Helsinki Weather

7 Day Weather Forecast

01.10
sat
DAY
12°F
S 18 mph
precip
0%
NIGHT
14°F
S 19 mph
precip
0%
01.11
sun
DAY
16°F
S 16 mph
precip
0%
NIGHT
16°F
S 13 mph
precip
62%
01.12
mon
DAY
18°F
S 9 mph
precip
69%
NIGHT
8°F
SW 7 mph
precip
0%
01.13
tue
DAY
14°F
SW 7 mph
precip
66%
NIGHT
2°F
SW 5 mph
precip
0%
01.14
wed
DAY
16°F
W 7 mph
precip
100%
NIGHT
20°F
NW 14 mph
precip
74%
01.15
thu
DAY
22°F
W 15 mph
precip
88%
NIGHT
14°F
W 8 mph
precip
85%
01.16
fri
DAY
16°F
NW 9 mph
precip
0%
NIGHT
18°F
N 9 mph
precip
0%

Helsinki Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Helsinki was 1.6°F. The maximum and minimum values were 0.9°F and 2.7°F respectively.

Helsinki on the Weather Map

Best Time to Visit Helsinki
The most sunny months:
June 15 days
July 15 days
May 14 days
The most warm months:
July 70.8 °F
August 69.0 °F
June 64.8 °F
Warmest sea temperature:
August 64.6 °F
July 63.2 °F
September 59.8 °F
The most cold months:
January 26.0 °F
February 26.8 °F
December 31.9 °F
The most rainy months:
August 5 days
July 4 days
October 4 days
The most windy months:
December 12 mph
November 12 mph
January 11 mph