Measurements:
°C
°F
Kotka
58°F
S 12 mph
Feels like: 54°F
Precip: 0%
World Resorts Finland Kotka Weather May Weather in Kotka

Kotka Weather: May

Average Day Temperature: 51.1°F
Average Night Temperature: 44.1°F
Sea Water Temperature: 44.7°F
Number of Sunny Days: 13 days
Sunshine Hours: 16.1 - 18.4 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.4 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 60°F. The lowest night temperature was 35°F. The average values for day and night temperatures during May were 48.9°F и 44.1°F respectivly.

Kotka Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Kotka was 44.9°F. The maximum and minimum values were 36.8°F and 51.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Kotka is 1.4 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 10.1 mph. It makes May the most windless month of the year for Kotka.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Kotka in May is 10.2 hours.

Best Time to Visit Kotka
The most sunny months:
July 15 days
June 14 days
May 13 days
The most warm months:
July 68.3 °F
August 67.2 °F
June 61.3 °F
Warmest sea temperature:
August 66.0 °F
July 64.8 °F
September 60.5 °F
The most cold months:
February 23.8 °F
January 23.9 °F
March 30.8 °F
The most rainy months:
October 5 days
August 5 days
December 4 days
The most windy months:
December 14 mph
November 14 mph
October 14 mph

Kotka on the Weather Map

Finland Resorts:
NAME
Espoo +68
Helsinki +64
Imatra +56
Juvaskyla +66
Kemi +46
Koli National Park +58
Kotka +58
Lahti +66
Oulu +58
Pori +66
Porvoo +58
Saariselka +46
Turku +68
Vaasa +58
Vantaa +68
24 Hours Weather Forecast
Kotka
Local time: 12:06
30 may, saturday
1500 58°F
SW
14 mph
1800 54°F
SW
11 mph
2100 52°F
SW
9 mph
31 may, sunday
0000 50°F
SW
7 mph
0300 48°F
SW
9 mph
0600 48°F
W
10 mph
0900 48°F
W
9 mph
1200 48°F
NW
8 mph