Measurements:
°C
°F
CURRENT WEATHER
13:45
Helsinki
54°F
SE 6 mph
Feels like: 52°F
Precip: 0%
World Resorts Finland Helsinki Weather

7 Day Weather Forecast

04.21
tue
DAY
52°F
SE 6 mph
precip
0%
NIGHT
44°F
SE 5 mph
precip
0%
04.22
wed
DAY
48°F
SE 14 mph
precip
0%
NIGHT
40°F
S 17 mph
precip
0%
04.23
thu
DAY
38°F
S 17 mph
precip
0%
NIGHT
36°F
S 12 mph
precip
0%
04.24
fri
DAY
44°F
S 12 mph
precip
0%
NIGHT
42°F
SE 6 mph
precip
0%
04.25
sat
DAY
34°F
SW 7 mph
precip
100%
NIGHT
36°F
S 11 mph
precip
0%
04.26
sun
DAY
38°F
S 14 mph
precip
0%
NIGHT
30°F
S 7 mph
precip
0%
04.27
mon
DAY
40°F
S 2 mph
precip
0%
NIGHT
34°F
SE 7 mph
precip
0%

Helsinki Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Helsinki was 2.4°F. The maximum and minimum values were 0.1°F and 5.6°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 25.5 °F
February 26.1 °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
more details