Current sea water temperature:
+28.8°F
| Minimum sea water temperature in February: | 33.8°F |
| Maximum sea water temperature in February: | 28.8°F |
| Average sea water temperature in February: | 30.3°F |
| more information | |
14 days
forecast
forecast
| Seinajoki |
monthly
weather
weather
| Seinajoki |
Sea water temperature for the last 10 days:
| February 25 | 28.8°F | February 20 | 29.1°F |
| February 24 | 28.9°F | February 19 | 29.1°F |
| February 23 | 28.9°F | February 18 | 29.1°F |
| February 22 | 28.9°F | February 17 | 28.9°F |
| February 21 | 28.9°F | February 16 | 28.8°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
March
March
| Seinajoki |
Best time for vacation in Seinajoki
Seinajoki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Seinajoki
Local time: 11:05
February 25, wednesday
1200
21°F
N
5 mph
5 mph
1500
25°F
N
6 mph
6 mph
1800
23°F
N
7 mph
7 mph
2100
23°F
N
9 mph
9 mph
February 26, thursday
0000
25°F
N
12 mph
12 mph
0300
25°F
N
12 mph
12 mph
0600
27°F
N
11 mph
11 mph
0900
30°F
N
9 mph
9 mph
