Current sea water temperature:
+56.7°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: | 52.3°F |
| more information | |
14 days
forecast
forecast
| Seinajoki |
monthly
weather
weather
| Seinajoki |
Sea water temperature for the last 10 days:
| June 6 | 56.7°F | May 31 | 53.1°F |
| June 5 | 56.7°F | May 30 | 53.6°F |
| June 4 | 56.3°F | May 29 | 55.2°F |
| June 3 | 56.8°F | May 28 | 52.5°F |
| June 1 | 54.5°F | May 27 | 50.7°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
June
June
| Seinajoki |
Best time for vacation in Seinajoki
Seinajoki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Seinajoki
Local time: 02:19
June 07, sunday
0300
52°F
N
13 mph
13 mph
0600
54°F
NW
12 mph
12 mph
0900
61°F
N
13 mph
13 mph
1200
66°F
N
14 mph
14 mph
1500
64°F
NE
11 mph
11 mph
1800
66°F
NE
10 mph
10 mph
2100
63°F
N
8 mph
8 mph
June 08, monday
0000
54°F
N
7 mph
7 mph
