18.05
mon
mon
Day
61°F
W 4 mph
Precip.
0%
0%
Night
52°F
S 8 mph
Precip.
100%
100%
19.05
tue
tue
Day
59°F
W 9 mph
Precip.
100%
100%
Night
52°F
N 6 mph
Precip.
84%
84%
20.05
wed
wed
Day
54°F
E 9 mph
Precip.
88%
88%
Night
48°F
E 5 mph
Precip.
0%
0%
21.05
thu
thu
Day
61°F
N 7 mph
Precip.
0%
0%
Night
48°F
NE 6 mph
Precip.
0%
0%
22.05
fri
fri
Day
61°F
NE 11 mph
Precip.
100%
100%
Night
54°F
SE 12 mph
Precip.
87%
87%
23.05
sat
sat
Day
66°F
SE 9 mph
Precip.
0%
0%
Night
55°F
NE 7 mph
Precip.
0%
0%
24.05
sun
sun
Day
61°F
SE 12 mph
Precip.
0%
0%
Night
52°F
SE 9 mph
Precip.
0%
0%
25.05
mon
mon
Day
55°F
S 12 mph
Precip.
0%
0%
Night
46°F
S 4 mph
Precip.
0%
0%
26.05
tue
tue
Day
61°F
SW 5 mph
Precip.
0%
0%
Night
48°F
E 4 mph
Precip.
0%
0%
27.05
wed
wed
Day
61°F
N 7 mph
Precip.
0%
0%
Night
52°F
N 5 mph
Precip.
0%
0%
28.05
thu
thu
Day
57°F
NE 7 mph
Precip.
100%
100%
Night
43°F
E 5 mph
Precip.
0%
0%
29.05
fri
fri
Day
50°F
E 6 mph
Precip.
0%
0%
Night
48°F
E 6 mph
Precip.
0%
0%
30.05
sat
sat
Day
52°F
NW 6 mph
Precip.
0%
0%
Night
50°F
W 7 mph
Precip.
100%
100%
31.05
sun
sun
Day
55°F
NE 12 mph
Precip.
100%
100%
Night
50°F
NW 5 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 43.9°F. The highest and lowest sea temperatures during the month were 47.5°F and 41.5°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 53.4°F. The highest and lowest sea temperatures during the month were 55.8°F and 51.6°F.
Air temperature in Vantaa, °F
Precipitation total in Vantaa, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Vantaa
Vantaa on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Vantaa
Local time: 17:22
May 18, monday
1800
61°F
W
6 mph
6 mph
2100
55°F
SW
4 mph
4 mph
May 19, tuesday
0000
52°F
S
8 mph
8 mph
0300
50°F
SW
13 mph
13 mph
0600
52°F
SW
9 mph
9 mph
0900
57°F
W
10 mph
10 mph
1200
59°F
W
9 mph
9 mph
1500
63°F
W
7 mph
7 mph
