Measurements:
°C
°F
CURRENT WEATHER
23:38
Seinajoki
42°F
NE 10 mph
Feels like: 36°F
Precip: 71%
World Resorts Finland Seinajoki Weather

7 Day Weather Forecast

04.17
thu
DAY
50°F
NE 9 mph
precip
89%
NIGHT
42°F
NE 10 mph
precip
71%
04.18
fri
DAY
48°F
NE 11 mph
precip
0%
NIGHT
40°F
S 2 mph
precip
0%
04.19
sat
DAY
40°F
S 9 mph
precip
0%
NIGHT
36°F
SW 8 mph
precip
0%
04.20
sun
DAY
32°F
SW 19 mph
precip
61%
NIGHT
34°F
S 14 mph
precip
0%
04.21
mon
DAY
40°F
SW 12 mph
precip
0%
NIGHT
34°F
W 6 mph
precip
0%
04.22
tue
DAY
44°F
SW 3 mph
precip
0%
NIGHT
36°F
W 2 mph
precip
0%
04.23
wed
DAY
44°F
NE 7 mph
precip
0%
NIGHT
36°F
NE 6 mph
precip
0%

Seinajoki Sea Water Temperature in April, °F

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
-6
-3
0
3
6
9

The average sea surface temperature in April 2025 for Seinajoki was 0.8°F. The maximum and minimum values were -0.9°F and 4.5°F respectively.

Seinajoki on the Weather Map

Best Time to Visit Seinajoki
The most sunny months:
June 11 days
May 11 days
July 11 days
The most warm months:
July 71.9 °F
August 68.5 °F
June 67.4 °F
Warmest sea temperature:
August 63.2 °F
July 61.8 °F
September 56.4 °F
The most cold months:
January 19.4 °F
February 22.9 °F
December 25.1 °F
The most rainy months:
July 6 days
August 6 days
September 4 days
The most windy months:
March 8 mph
December 7 mph
February 7 mph
more details