05.04
sun
sun
Day

36°F
NE 7 mph
Precip.
0%
0%
Night

34°F
NW 12 mph
Precip.
100%
100%
06.04
mon
mon
Day

36°F
SW 7 mph
Precip.
100%
100%
Night

36°F
S 8 mph
Precip.
70%
70%
07.04
tue
tue
Day

37°F
S 8 mph
Precip.
0%
0%
Night

34°F
SW 9 mph
Precip.
0%
0%
08.04
wed
wed
Day

37°F
SW 8 mph
Precip.
0%
0%
Night

30°F
N 4 mph
Precip.
0%
0%
09.04
thu
thu
Day

41°F
NE 10 mph
Precip.
0%
0%
Night

34°F
N 12 mph
Precip.
0%
0%
10.04
fri
fri
Day

45°F
E 12 mph
Precip.
0%
0%
Night

36°F
E 4 mph
Precip.
0%
0%
11.04
sat
sat
Day

48°F
N 11 mph
Precip.
0%
0%
Night

45°F
N 13 mph
Precip.
0%
0%
sea water
temperature
temperature
| Seinajoki |
monthly
weather
weather
| Seinajoki |
current
weather
weather
| Seinajoki |
14 days
forecast
forecast
| Seinajoki |
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 35.8°F. The highest and lowest sea temperatures during the month were 40.6°F and 30.4°F.
Air temperature in Seinajoki, °F
Precipitation total in Seinajoki, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Seinajoki
Seinajoki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Seinajoki
Local time: 22:23
April 06, monday
0000

34°F
NW
12 mph
12 mph
0300

36°F
NW
10 mph
10 mph
0600

36°F
NW
9 mph
9 mph
0900

36°F
W
8 mph
8 mph
1200

36°F
SW
7 mph
7 mph
1500

36°F
SW
6 mph
6 mph
1800

36°F
S
7 mph
7 mph
2100

36°F
S
9 mph
9 mph

























