27.04
mon
mon
Day
41°F
S 15 mph
Precip.
0%
0%
Night
36°F
S 14 mph
Precip.
0%
0%
28.04
tue
tue
Day
37°F
S 14 mph
Precip.
85%
85%
Night
36°F
SE 11 mph
Precip.
0%
0%
29.04
wed
wed
Day
43°F
S 9 mph
Precip.
0%
0%
Night
36°F
SE 3 mph
Precip.
0%
0%
30.04
thu
thu
Day
39°F
E 2 mph
Precip.
100%
100%
Night
37°F
S 4 mph
Precip.
0%
0%
01.05
fri
fri
Day
54°F
S 7 mph
Precip.
0%
0%
Night
43°F
N 4 mph
Precip.
0%
0%
02.05
sat
sat
Day
61°F
N 5 mph
Precip.
0%
0%
Night
45°F
N 6 mph
Precip.
0%
0%
03.05
sun
sun
Day
61°F
N 6 mph
Precip.
0%
0%
Night
43°F
NE 4 mph
Precip.
0%
0%
04.05
mon
mon
Day
61°F
S 4 mph
Precip.
0%
0%
Night
50°F
S 5 mph
Precip.
0%
0%
05.05
tue
tue
Day
59°F
W 11 mph
Precip.
0%
0%
Night
50°F
SW 6 mph
Precip.
0%
0%
06.05
wed
wed
Day
66°F
W 11 mph
Precip.
0%
0%
Night
54°F
SW 5 mph
Precip.
0%
0%
07.05
thu
thu
Day
72°F
W 8 mph
Precip.
0%
0%
Night
54°F
W 2 mph
Precip.
100%
100%
08.05
fri
fri
Day
63°F
W 7 mph
Precip.
0%
0%
Night
50°F
W 5 mph
Precip.
0%
0%
09.05
sat
sat
Day
64°F
NW 6 mph
Precip.
100%
100%
Night
48°F
W 4 mph
Precip.
0%
0%
10.05
sun
sun
Day
61°F
W 8 mph
Precip.
0%
0%
Night
57°F
W 6 mph
Precip.
66%
66%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 36.3°F. The highest and lowest sea temperatures during the month were 41.4°F and 32.5°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 47.5°F. The highest and lowest sea temperatures during the month were 54.5°F and 41.2°F.
Air temperature in Lahti, °F
Precipitation total in Lahti, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Lahti
Lahti on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Lahti
Local time: 17:10
April 27, monday
1800
43°F
S
14 mph
14 mph
2100
37°F
S
13 mph
13 mph
April 28, tuesday
0000
36°F
S
14 mph
14 mph
0300
32°F
SE
14 mph
14 mph
0600
32°F
S
14 mph
14 mph
0900
34°F
S
14 mph
14 mph
1200
37°F
S
14 mph
14 mph
1500
41°F
S
15 mph
15 mph
