17.05
sun
sun
Day
54°F
NE 14 mph
Precip.
80%
80%
Night
45°F
N 13 mph
Precip.
0%
0%
18.05
mon
mon
Day
54°F
NE 10 mph
Precip.
0%
0%
Night
46°F
SW 5 mph
Precip.
0%
0%
19.05
tue
tue
Day
52°F
SW 7 mph
Precip.
100%
100%
Night
46°F
S 7 mph
Precip.
75%
75%
20.05
wed
wed
Day
52°F
NE 6 mph
Precip.
100%
100%
Night
48°F
N 11 mph
Precip.
0%
0%
21.05
thu
thu
Day
55°F
NE 12 mph
Precip.
100%
100%
Night
50°F
N 7 mph
Precip.
100%
100%
22.05
fri
fri
Day
48°F
E 4 mph
Precip.
100%
100%
Night
45°F
NE 8 mph
Precip.
0%
0%
23.05
sat
sat
Day
50°F
NE 12 mph
Precip.
86%
86%
Night
43°F
S 11 mph
Precip.
0%
0%
24.05
sun
sun
Day
52°F
S 9 mph
Precip.
0%
0%
Night
48°F
NE 11 mph
Precip.
0%
0%
25.05
mon
mon
Day
54°F
E 16 mph
Precip.
0%
0%
Night
50°F
E 14 mph
Precip.
63%
63%
26.05
tue
tue
Day
52°F
E 9 mph
Precip.
0%
0%
Night
50°F
E 14 mph
Precip.
0%
0%
27.05
wed
wed
Day
50°F
E 14 mph
Precip.
0%
0%
Night
48°F
SE 12 mph
Precip.
0%
0%
28.05
thu
thu
Day
52°F
S 11 mph
Precip.
0%
0%
Night
45°F
E 6 mph
Precip.
0%
0%
29.05
fri
fri
Day
54°F
E 8 mph
Precip.
0%
0%
Night
46°F
NE 7 mph
Precip.
0%
0%
30.05
sat
sat
Day
55°F
NE 14 mph
Precip.
0%
0%
Night
54°F
NE 12 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 43.7°F. The highest and lowest sea temperatures during the month were 47.7°F and 37.9°F.
Air temperature in Vaasa, °F
Precipitation total in Vaasa, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Vaasa
Vaasa on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Vaasa
Local time: 02:32
May 17, sunday
0300
45°F
N
6 mph
6 mph
0600
46°F
N
7 mph
7 mph
0900
50°F
NE
11 mph
11 mph
1200
54°F
NE
14 mph
14 mph
1500
52°F
NE
16 mph
16 mph
1800
50°F
NE
14 mph
14 mph
2100
48°F
N
12 mph
12 mph
May 18, monday
0000
45°F
N
13 mph
13 mph
