27.10
tue
tue
Day
48°F
NE 13 mph
Precip.
22%
22%
Night
50°F
N 13 mph
Precip.
29%
29%
28.10
wed
wed
Day
50°F
N 12 mph
Precip.
43%
43%
Night
45°F
N 8 mph
Precip.
31%
31%
29.10
thu
thu
Day
48°F
NE 9 mph
Precip.
25%
25%
Night
46°F
NE 11 mph
Precip.
25%
25%
30.10
fri
fri
Day
50°F
SE 9 mph
Precip.
7%
7%
Night
39°F
NE 4 mph
Precip.
29%
29%
31.10
sat
sat
Day
48°F
E 6 mph
Precip.
31%
31%
Night
41°F
N 2 mph
Precip.
38%
38%
01.11
sun
sun
Day
43°F
N 1 mph
Precip.
25%
25%
Night
39°F
NE 2 mph
Precip.
22%
22%
02.11
mon
mon
Day
41°F
NE 4 mph
Precip.
22%
22%
Night
39°F
NE 3 mph
Precip.
52%
52%
sea water
temperature
temperature
| Seinajoki |
monthly
weather
weather
| Seinajoki |
current
weather
weather
| Seinajoki |
14 days
forecast
forecast
| Seinajoki |
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 48.2°F. The highest and lowest sea temperatures during the month were 53.4°F and 44.4°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 39.7°F. The highest and lowest sea temperatures during the month were 43.5°F and 35.1°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: 05:18
October 27, tuesday
0600
48°F
NE
12 mph
12 mph
0900
48°F
NE
11 mph
11 mph
1200
48°F
NE
13 mph
13 mph
1500
48°F
N
12 mph
12 mph
1800
50°F
N
14 mph
14 mph
2100
50°F
N
13 mph
13 mph
October 28, wednesday
0000
50°F
N
13 mph
13 mph
0300
50°F
N
12 mph
12 mph
