Current sea water temperature:
+57.7°F
| Minimum sea water temperature in September: | 66.0°F |
| Maximum sea water temperature in September: | 50.5°F |
| Average sea water temperature in September: | 58.9°F |
| more information | |
14 days
forecast
forecast
| Vantaa |
monthly
weather
weather
| Vantaa |
Sea water temperature for the last 10 days:
| September 16 | 57.7°F | September 11 | 59.0°F |
| September 15 | 57.7°F | September 10 | 59.4°F |
| September 14 | 57.0°F | September 9 | 59.5°F |
| September 13 | 58.6°F | September 8 | 59.9°F |
| September 12 | 59.0°F | September 7 | 59.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Vantaa?
Based on the data about daily sea water temperature for the last three years the warmest sea in Vantaa was noticed in August, July and September.
Monthly Sea Temperatures in Vantaa, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 59.9°F. The highest and lowest sea temperatures during the month were 64.8°F and 56.3°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 62.7°F. The highest and lowest sea temperatures during the month were 66.9°F and 59.0°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 59.3°F. The highest and lowest sea temperatures during the month were 60.6°F and 57.0°F.
current
weather
weather
| Vantaa |
weather in
September
September
| Vantaa |
Best time for vacation in Vantaa
Vantaa on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Vantaa
Local time: 20:27
September 16, wednesday
2100

59°F
N
14 mph
14 mph
September 17, thursday
0000

57°F
NE
9 mph
9 mph
0300

55°F
NE
9 mph
9 mph
0600

55°F
NE
11 mph
11 mph
0900

55°F
NE
10 mph
10 mph
1200

59°F
NE
14 mph
14 mph
1500

59°F
NE
14 mph
14 mph
1800

57°F
E
11 mph
11 mph

























