Measurements:
°C
°F
CURRENT WEATHER
03:23
Turku
58°F
N 12 mph
Feels like: 54°F
Precip: 25%
World Resorts Finland Turku Weather

7 Day Weather Forecast

09.29
tue
DAY
60°F
NE 6 mph
precip
20%
NIGHT
52°F
S 6 mph
precip
13%
09.30
wed
DAY
58°F
W 6 mph
precip
3%
NIGHT
50°F
W 6 mph
precip
13%
10.01
thu
DAY
60°F
NW 7 mph
precip
7%
NIGHT
54°F
NW 6 mph
precip
19%
10.02
fri
DAY
60°F
N 10 mph
precip
8%
NIGHT
56°F
N 11 mph
precip
30%
10.03
sat
DAY
58°F
NE 9 mph
precip
26%
NIGHT
52°F
NE 6 mph
precip
20%
10.04
sun
DAY
58°F
N 12 mph
precip
13%
NIGHT
54°F
NE 9 mph
precip
31%
10.05
mon
DAY
58°F
NE 9 mph
precip
7%
NIGHT
50°F
N 5 mph
precip
15%

Turku Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Turku was 15.3°F. The maximum and minimum values were 12.6°F and 16.8°F respectively.

Turku on the Weather Map

Best Time to Visit Turku
The most sunny months:
June 15 days
May 14 days
July 14 days
The most warm months:
July 70.7 °F
August 68.8 °F
June 64.8 °F
Warmest sea temperature:
August 66.2 °F
July 64.5 °F
September 60.4 °F
The most cold months:
January 25.2 °F
February 26.7 °F
December 31.6 °F
The most rainy months:
December 4 days
August 4 days
September 3 days
The most windy months:
December 11 mph
January 11 mph
November 11 mph
more details