Average sea water temperature in May:
+43.8°F
| Minimum sea water temperature in May: | 57.4°F |
| Maximum sea water temperature in May: | 34.5°F |
Daily 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.
Monthly sea water temperature in Vaasa, °F
Which Finland resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Lahti | 45.5°F | 47.5°F |
| Porvoo | 44.8°F | 47.1°F |
| Lappeenranta | 44.5°F | 46.3°F |
| Espoo | 43.9°F | 46.2°F |
| Helsinki | 43.7°F | 46.3°F |
| Vaasa | 43.7°F | 47.1°F |
| Seinajoki | 43.6°F | 45.2°F |
| Vantaa | 43.5°F | 46.0°F |
| Turku | 42.8°F | 45.7°F |
| Kotka | 42.4°F | 45.7°F |
| Pori | 41.9°F | 46.9°F |
| Juvaskyla | 41.5°F | 43.8°F |
| Savolinna | 41.2°F | 43.1°F |
| Imatra | 40.3°F | 43.1°F |
| Oulu | 39.8°F | 39.1°F |
| Saariselka | 36.5°F | 38.1°F |
| Kemi | 34.3°F | 37.6°F |
| Koli National Park | 33.5°F | 39.1°F |
Best time for vacation in Vaasa
Vaasa on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Vaasa
Local time: 08:36
May 17, sunday
0900
50°F
N
12 mph
12 mph
1200
52°F
NE
15 mph
15 mph
1500
52°F
NE
16 mph
16 mph
1800
50°F
NE
15 mph
15 mph
2100
48°F
N
12 mph
12 mph
May 18, monday
0000
45°F
N
12 mph
12 mph
0300
45°F
N
11 mph
11 mph
0600
45°F
N
10 mph
10 mph
