18.07
sat
sat
Day
73°F
N 9 mph
Precip.
65%
65%
Night
63°F
NW 8 mph
Precip.
58%
58%
19.07
sun
sun
Day
57°F
E 12 mph
Precip.
40%
40%
Night
50°F
S 4 mph
Precip.
10%
10%
20.07
mon
mon
Day
61°F
SW 9 mph
Precip.
3%
3%
Night
50°F
SW 7 mph
Precip.
8%
8%
21.07
tue
tue
Day
46°F
SW 10 mph
Precip.
44%
44%
Night
48°F
S 6 mph
Precip.
32%
32%
22.07
wed
wed
Day
57°F
S 6 mph
Precip.
21%
21%
Night
52°F
S 4 mph
Precip.
32%
32%
23.07
thu
thu
Day
59°F
S 7 mph
Precip.
24%
24%
Night
48°F
S 6 mph
Precip.
17%
17%
24.07
fri
fri
Day
59°F
S 7 mph
Precip.
26%
26%
Night
52°F
SE 2 mph
Precip.
17%
17%
25.07
sat
sat
Day
68°F
SE 1 mph
Precip.
9%
9%
Night
55°F
N 6 mph
Precip.
14%
14%
26.07
sun
sun
Day
70°F
N 12 mph
Precip.
3%
3%
Night
57°F
NW 6 mph
Precip.
13%
13%
27.07
mon
mon
Day
75°F
N 10 mph
Precip.
2%
2%
Night
63°F
W 4 mph
Precip.
5%
5%
28.07
tue
tue
Day
75°F
N 8 mph
Precip.
9%
9%
Night
59°F
N 3 mph
Precip.
47%
47%
29.07
wed
wed
Day
73°F
N 9 mph
Precip.
4%
4%
Night
57°F
N 5 mph
Precip.
42%
42%
30.07
thu
thu
Day
70°F
NW 7 mph
Precip.
4%
4%
Night
55°F
NW 8 mph
Precip.
45%
45%
31.07
fri
fri
Day
64°F
N 14 mph
Precip.
44%
44%
Night
55°F
NE 4 mph
Precip.
30%
30%
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 65.9°F. The highest and lowest sea temperatures during the month were 69.1°F and 64.2°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 67.2°F. The highest and lowest sea temperatures during the month were 74.7°F and 62.2°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: 09:19
July 18, saturday
1200
73°F
N
9 mph
9 mph
1500
70°F
N
9 mph
9 mph
1800
75°F
NW
9 mph
9 mph
2100
70°F
NW
9 mph
9 mph
July 19, sunday
0000
63°F
NW
8 mph
8 mph
0300
63°F
N
13 mph
13 mph
0600
61°F
N
11 mph
11 mph
0900
61°F
NE
10 mph
10 mph
