Measurements:
°C
°F
CURRENT WEATHER
10:27
Seinajoki
32°F
N 6 mph
Feels like: 26°F
Precip: 15%
World Resorts Finland Seinajoki Weather

7 Day Weather Forecast

10.19
mon
DAY
40°F
N 8 mph
precip
22%
NIGHT
38°F
NE 7 mph
precip
15%
10.20
tue
DAY
44°F
N 6 mph
precip
11%
NIGHT
32°F
NW 5 mph
precip
19%
10.21
wed
DAY
44°F
NW 8 mph
precip
24%
NIGHT
42°F
NW 7 mph
precip
38%
10.22
thu
DAY
48°F
NW 10 mph
precip
28%
NIGHT
52°F
NE 7 mph
precip
32%
10.23
fri
DAY
48°F
N 7 mph
precip
11%
NIGHT
46°F
NW 6 mph
precip
21%
10.24
sat
DAY
46°F
W 6 mph
precip
40%
NIGHT
48°F
NW 9 mph
precip
30%
10.25
sun
DAY
50°F
N 6 mph
precip
28%
NIGHT
42°F
N 6 mph
precip
16%

Seinajoki Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Seinajoki was 9.8°F. The maximum and minimum values were 7.7°F and 11.9°F respectively.

Seinajoki on the Weather Map

Best Time to Visit Seinajoki
The most sunny months:
May 11 days
July 11 days
June 10 days
The most warm months:
July 72.2 °F
August 68.2 °F
June 67.0 °F
Warmest sea temperature:
August 63.2 °F
July 62.3 °F
September 56.5 °F
The most cold months:
January 19.0 °F
February 22.4 °F
December 25.6 °F
The most rainy months:
July 5 days
August 5 days
September 3 days
The most windy months:
March 8 mph
December 7 mph
May 7 mph
more details