17.05
sun
sun
Day
52°F
N 11 mph
Precip.
0%
0%
Night
43°F
N 5 mph
Precip.
0%
0%
18.05
mon
mon
Day
59°F
NE 1 mph
Precip.
0%
0%
Night
52°F
SW 6 mph
Precip.
100%
100%
19.05
tue
tue
Day
61°F
NW 7 mph
Precip.
71%
71%
Night
45°F
NE 9 mph
Precip.
71%
71%
20.05
wed
wed
Day
55°F
NE 9 mph
Precip.
0%
0%
Night
46°F
N 6 mph
Precip.
0%
0%
21.05
thu
thu
Day
57°F
N 11 mph
Precip.
0%
0%
Night
48°F
NE 4 mph
Precip.
0%
0%
22.05
fri
fri
Day
57°F
E 7 mph
Precip.
100%
100%
Night
48°F
SE 6 mph
Precip.
0%
0%
23.05
sat
sat
Day
59°F
NE 8 mph
Precip.
0%
0%
Night
50°F
N 7 mph
Precip.
100%
100%
24.05
sun
sun
Day
59°F
SE 12 mph
Precip.
0%
0%
Night
50°F
SE 9 mph
Precip.
0%
0%
25.05
mon
mon
Day
63°F
S 9 mph
Precip.
0%
0%
Night
52°F
SW 2 mph
Precip.
0%
0%
26.05
tue
tue
Day
61°F
SE 2 mph
Precip.
0%
0%
Night
50°F
SW 5 mph
Precip.
0%
0%
27.05
wed
wed
Day
57°F
SW 13 mph
Precip.
0%
0%
Night
46°F
SW 7 mph
Precip.
100%
100%
28.05
thu
thu
Day
50°F
NW 8 mph
Precip.
71%
71%
Night
46°F
E 3 mph
Precip.
0%
0%
29.05
fri
fri
Day
50°F
E 16 mph
Precip.
0%
0%
Night
46°F
N 6 mph
Precip.
0%
0%
30.05
sat
sat
Day
54°F
N 11 mph
Precip.
0%
0%
Night
50°F
NE 9 mph
Precip.
0%
0%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 43.0°F. The highest and lowest sea temperatures during the month were 46.4°F and 40.5°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: 18:12
May 17, sunday
2100
46°F
N
6 mph
6 mph
May 18, monday
0000
43°F
N
5 mph
5 mph
0300
43°F
N
5 mph
5 mph
0600
45°F
N
4 mph
4 mph
0900
52°F
N
3 mph
3 mph
1200
59°F
NE
1 mph
1 mph
1500
63°F
E
3 mph
3 mph
1800
61°F
SE
1 mph
1 mph
