Current sea water temperature:
+52.9°F
| Minimum sea water temperature in September: | 63.7°F |
| Maximum sea water temperature in September: | 48.0°F |
| Average sea water temperature in September: | 55.9°F |
| more information | |
14 days
forecast
forecast
| Seinajoki |
monthly
weather
weather
| Seinajoki |
Sea water temperature for the last 10 days:
| September 26 | 52.9°F | September 21 | 55.2°F |
| September 25 | 53.6°F | September 20 | 55.8°F |
| September 24 | 53.2°F | September 19 | 55.6°F |
| September 23 | 53.8°F | September 18 | 55.8°F |
| September 22 | 54.9°F | September 17 | 55.9°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 60.5°F. The highest and lowest sea temperatures during the month were 62.2°F and 58.1°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 64.0°F. The highest and lowest sea temperatures during the month were 67.8°F and 61.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 57.3°F. The highest and lowest sea temperatures during the month were 61.0°F and 52.9°F.
current
weather
weather
| Seinajoki |
weather in
September
September
| Seinajoki |
Best time for vacation in Seinajoki
Seinajoki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Seinajoki
Local time: 16:04
September 26, saturday
1800
52°F
N
6 mph
6 mph
2100
52°F
NE
3 mph
3 mph
September 27, sunday
0000
52°F
E
7 mph
7 mph
0300
48°F
E
11 mph
11 mph
0600
46°F
E
7 mph
7 mph
0900
46°F
E
6 mph
6 mph
1200
54°F
E
9 mph
9 mph
1500
55°F
E
9 mph
9 mph
