World Resorts Finland Turku Weather

Turku sea water temperature

Current sea water temperature:
+34.2°F
Minimum sea water temperature in April: 46.4°F
Maximum sea water temperature in April: 29.5°F
Average sea water temperature in April: 35.9°F

Sea water temperature for the last 10 days:

April 6 34.2°F April 1 34.2°F
April 5 34.3°F March 31 35.2°F
April 4 35.2°F March 30 36.1°F
April 3 36.0°F March 29 34.0°F
April 2 37.6°F March 28 34.7°F

When is the warmest sea in Turku?

Based on the data about daily sea water temperature for the last three years the warmest sea in Turku was noticed in August, July and September.

Monthly Sea Temperatures in Turku, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 71.1°F and 61.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 64.0°F. The highest and lowest sea temperatures during the month were 70.5°F and 57.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 60.5°F. The highest and lowest sea temperatures during the month were 63.5°F and 56.7°F.

Best time for vacation in Turku

Sunniest months:
June 15 days
May 14 days
July 14 days
Warmest months:
July 68.8 °F
August 67.0 °F
June 63.3 °F
Warmest sea temp:
August 64.7 °F
July 63.0 °F
September 59.4 °F
Coldest months:
January 27.7 °F
February 29.0 °F
December 33.4 °F
Rainiest months:
December 4 days
August 4 days
September 4 days
Windiest months:
December 11.5 mph
January 10.8 mph
November 10.7 mph

Turku on a weather map

Turku
+37°F
S 12 mph
Feels like: +28°F
Precip.: 0%
Places in Finland:
Name
°F
+34°F
+37°F
+36°F
+36°F
+36°F
+36°F
+36°F
+36°F
+37°F
+30°F
+36°F
+37°F
+37°F
+37°F
+37°F
24 Hours Forecast
Turku
Local time: 09:01
April 07, tuesday
1200
41°F
S
13 mph
1500
43°F
S
13 mph
1800
41°F
S
12 mph
2100
41°F
S
10 mph
April 08, wednesday
0000
39°F
S
9 mph
0300
37°F
S
11 mph
0600
34°F
SW
11 mph
0900
34°F
SW
11 mph
Units of measurement: °C / °F