Current sea water temperature:
+60.6°F
| Minimum sea water temperature in June: | 68.5°F |
| Maximum sea water temperature in June: | 36.5°F |
| Average sea water temperature in June: | 52.5°F |
| more information | |
14 days
forecast
forecast
| Seinajoki |
monthly
weather
weather
| Seinajoki |
Sea water temperature for the last 10 days:
| June 26 | 60.6°F | June 21 | 60.6°F |
| June 25 | 60.6°F | June 20 | 59.7°F |
| June 24 | 60.4°F | June 19 | 57.6°F |
| June 23 | 59.9°F | June 18 | 56.5°F |
| June 22 | 59.7°F | June 17 | 56.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Seinajoki?
Based on the data about daily sea water temperature for the last three years the warmest sea in Seinajoki was noticed in August, July and September.
Monthly Sea Temperatures in Seinajoki, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 63.4°F. The highest and lowest sea temperatures during the month were 71.2°F and 58.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 74.1°F and 56.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 56.7°F. The highest and lowest sea temperatures during the month were 61.9°F and 51.6°F.
current
weather
weather
| Seinajoki |
weather in
July
July
| Seinajoki |
Best time for vacation in Seinajoki
Seinajoki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Seinajoki
Local time: 04:49
June 27, saturday
0600
54°F
E
2 mph
2 mph
0900
61°F
E
6 mph
6 mph
1200
70°F
E
8 mph
8 mph
1500
72°F
SE
9 mph
9 mph
1800
72°F
SE
8 mph
8 mph
2100
64°F
SE
2 mph
2 mph
June 28, sunday
0000
55°F
W
2 mph
2 mph
0300
54°F
NW
5 mph
5 mph
