Sea Temperature in Helsinki in April

Complete information on the sea temperature range in the Gulf of Finland in Helsinki in April. Historical daily data. Climate details for April. Tips on swimming conditions and beach relaxation in Helsinki. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Helsinki in April

30°F

MINIMUN

35°F

AVERAGE

39°F

MAXIMUM

Historical Data of Water Temperature in April in Helsinki

Water Temperature Chart for Gulf of Finland in Helsinki in April

Sea Temperature Table in Helsinki in April Over the Past Years

Day	2024	2023	2022	Average
Apr 1	36°C	36°C	32°C	35°C
Apr 2	36°C	37°C	32°C	36°C
Apr 3	36°C	36°C	32°C	35°C
Apr 4	36°C	36°C	32°C	35°C
Apr 5	36°C	37°C	32°C	36°C
Apr 6	37°C	37°C	32°C	36°C
Apr 7	37°C	37°C	32°C	36°C
Apr 8	36°C	37°C	32°C	36°C
Apr 9	34°C	36°C	32°C	35°C
Apr 10	36°C	36°C	32°C	35°C
Apr 11	37°C	37°C	34°C	36°C
Apr 12	36°C	37°C	34°C	36°C
Apr 13	36°C	37°C	34°C	36°C
Apr 14	36°C	37°C	34°C	36°C
Apr 15	37°C	37°C	34°C	37°C
Apr 16	37°C	37°C	34°C	37°C
Apr 17	37°C	37°C	36°C	37°C
Apr 18	37°C	37°C	36°C	37°C
Apr 19	36°C	37°C	36°C	37°C
Apr 20	37°C	37°C	36°C	37°C
Apr 21	39°C	37°C	36°C	37°C
Apr 22	37°C	37°C	36°C	37°C
Apr 23	37°C	37°C	37°C	37°C
Apr 24	36°C	39°C	37°C	37°C
Apr 25	36°C	39°C	37°C	37°C
Apr 26	37°C	39°C	37°C	38°C
Apr 27	39°C	39°C	37°C	39°C
Apr 28	37°C	39°C	37°C	38°C
Apr 29	37°C	39°C	39°C	39°C

Helsinki Climate and Swimming Opportunities in April

45°F

Average Day Air Temperature

32°F

Average Night Air Temperature

1 in

Precipitation Amount per Month

8 days

Number of Rainy Days

14 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

9 mph

Average Wind Speed

75%

Average
humidity

Helsinki lies within the Southern Finland Province in Finland. The average daytime temperature in Helsinki in April is 7°C (45°F), while the nighttime average is 0°C (32°F). There are typically eight rainy days during the month, with a total precipitation of 32 mm (1.3 inches). The daylight duration in April in Helsinki is 14 hours, with an average of 5 hours of sunshine per day. The average wind speed in April is 14 km/h (9 mph), and the humidity level is around 75%.

The water temperature in Helsinki in April ranges from 1°C to 3°C (34°F to 37°F). At the beginning of the month, the average temperature is around 2°C (36°F), shifting to 2°C (36°F) by mid-April and reaching 3°C (37°F) in the last ten days. Overall, the average sea temperature in Helsinki for April is 2°C (36°F). The water is freezing, and the air is still very cold. Even a brief dip can be risky. A wetsuit is highly recommended.

Sea Temperature in April in Nearby Cities

Frequently Asked Questions About Water Temperatures in April in Helsinki

What is the sea temperature in Helsinki in April?

The water temperature in the Gulf of Finland in Helsinki in April ranges from 1°C to 3°C (34°F to 37°F).

Is it possible to swim in the Gulf of Finland in Helsinki in April?

The average sea temperature in Helsinki in April is 2°C (36°F), and the air temperature is 7°C (45°F), so the water is freezing, and the air is still very cold. Even a brief dip can be risky. A wetsuit is highly recommended.