15.01
thu
thu
Day
19°F
NW 9 mph
Precip.
67%
67%
Night
23°F
N 7 mph
Precip.
71%
71%
16.01
fri
fri
Day
27°F
N 7 mph
Precip.
74%
74%
Night
21°F
N 8 mph
Precip.
0%
0%
17.01
sat
sat
Day
28°F
NE 9 mph
Precip.
0%
0%
Night
32°F
NE 7 mph
Precip.
0%
0%
18.01
sun
sun
Day
28°F
E 6 mph
Precip.
0%
0%
Night
30°F
E 6 mph
Precip.
0%
0%
19.01
mon
mon
Day
27°F
E 4 mph
Precip.
0%
0%
Night
27°F
S 5 mph
Precip.
44%
44%
20.01
tue
tue
Day
27°F
S 6 mph
Precip.
55%
55%
Night
14°F
S 4 mph
Precip.
27%
27%
21.01
wed
wed
Day
23°F
S 4 mph
Precip.
80%
80%
Night
21°F
SE 4 mph
Precip.
0%
0%
22.01
thu
thu
Day
25°F
S 5 mph
Precip.
0%
0%
Night
18°F
SE 5 mph
Precip.
28%
28%
23.01
fri
fri
Day
25°F
S 4 mph
Precip.
55%
55%
Night
18°F
E 1 mph
Precip.
0%
0%
24.01
sat
sat
Day
23°F
SW 6 mph
Precip.
0%
0%
Night
18°F
SW 6 mph
Precip.
74%
74%
25.01
sun
sun
Day
14°F
SW 7 mph
Precip.
66%
66%
Night
5°F
SW 6 mph
Precip.
49%
49%
26.01
mon
mon
Day
5°F
W 6 mph
Precip.
0%
0%
Night
-2°F
SW 4 mph
Precip.
0%
0%
27.01
tue
tue
Day
3°F
SW 4 mph
Precip.
0%
0%
Night
0°F
SE 4 mph
Precip.
20%
20%
28.01
wed
wed
Day
12°F
SE 4 mph
Precip.
0%
0%
Night
16°F
E 7 mph
Precip.
0%
0%
Sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 33.9°F. The highest and lowest sea temperatures during the month were 34.5°F and 33.1°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: 14:42
January 15, thursday
1500
19°F
NW
8 mph
8 mph
1800
18°F
N
6 mph
6 mph
2100
21°F
N
7 mph
7 mph
January 16, friday
0000
23°F
N
7 mph
7 mph
0300
25°F
N
7 mph
7 mph
0600
27°F
N
6 mph
6 mph
0900
27°F
N
7 mph
7 mph
1200
27°F
N
7 mph
7 mph
