Measurements:
°C
°F
CURRENT WEATHER
00:59
Lahti
48°F
N 6 mph
Feels like: 46°F
Precip: 38%
World Resorts Finland Lahti Weather

7 Day Weather Forecast

09.29
tue
DAY
52°F
N 7 mph
precip
31%
NIGHT
52°F
S 4 mph
precip
42%
09.30
wed
DAY
54°F
W 5 mph
precip
29%
NIGHT
52°F
N 3 mph
precip
43%
10.01
thu
DAY
54°F
N 5 mph
precip
11%
NIGHT
52°F
N 5 mph
precip
20%
10.02
fri
DAY
58°F
N 9 mph
precip
20%
NIGHT
50°F
N 6 mph
precip
24%
10.03
sat
DAY
56°F
NE 9 mph
precip
21%
NIGHT
50°F
NE 6 mph
precip
43%
10.04
sun
DAY
58°F
NE 9 mph
precip
7%
NIGHT
48°F
NE 7 mph
precip
18%
10.05
mon
DAY
58°F
NE 8 mph
precip
6%
NIGHT
48°F
NE 4 mph
precip
20%

Lahti Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Lahti was 15.6°F. The maximum and minimum values were 13.4°F and 18.2°F respectively.

Lahti on the Weather Map

Best Time to Visit Lahti
The most sunny months:
May 11 days
June 11 days
July 11 days
The most warm months:
July 73.5 °F
August 70.2 °F
June 69.1 °F
Warmest sea temperature:
August 69.6 °F
July 67.3 °F
September 62.6 °F
The most cold months:
January 19.9 °F
February 22.5 °F
December 26.4 °F
The most rainy months:
June 4 days
July 4 days
May 3 days
The most windy months:
December 7 mph
March 7 mph
October 7 mph
more details