26.08
wed
wed
Day
68°F
S 3 mph
Precip.
2%
2%
Night
61°F
SW 4 mph
Precip.
18%
18%
27.08
thu
thu
Day
64°F
N 3 mph
Precip.
15%
15%
Night
55°F
NW 4 mph
Precip.
15%
15%
28.08
fri
fri
Day
68°F
N 8 mph
Precip.
9%
9%
Night
57°F
W 8 mph
Precip.
11%
11%
29.08
sat
sat
Day
68°F
NW 13 mph
Precip.
12%
12%
Night
57°F
NE 17 mph
Precip.
44%
44%
30.08
sun
sun
Day
64°F
NE 12 mph
Precip.
19%
19%
Night
59°F
N 9 mph
Precip.
75%
75%
31.08
mon
mon
Day
59°F
NE 9 mph
Precip.
61%
61%
Night
59°F
N 9 mph
Precip.
36%
36%
01.09
tue
tue
Day
64°F
NW 10 mph
Precip.
24%
24%
Night
57°F
N 5 mph
Precip.
22%
22%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 63.2°F. The highest and lowest sea temperatures during the month were 64.8°F and 61.9°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.
Air temperature in Turku, °F
Precipitation total in Turku, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Turku
Turku on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Turku
Local time: 04:02
August 26, wednesday
0600
54°F
SE
4 mph
4 mph
0900
59°F
S
4 mph
4 mph
1200
68°F
S
3 mph
3 mph
1500
72°F
E
4 mph
4 mph
1800
70°F
E
3 mph
3 mph
2100
63°F
SW
5 mph
5 mph
August 27, thursday
0000
61°F
SW
4 mph
4 mph
0300
61°F
W
2 mph
2 mph
