Measurements:
°C
°F
Lahti
42°F
E 6 mph
Feels like: 38°F
Precip: 0%
World Resorts Finland Lahti Weather September Weather in Lahti

Lahti Weather: September

Average Day Temperature: 59.3°F
Average Night Temperature: 48.1°F
Sea Water Temperature: 62.8°F
Number of Sunny Days: 8 days
Sunshine Hours: 11.5 - 14.2 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.8 in

Air Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day Temperature   
Night Temperature

The highest day temperature in September 2024 was 83°F. The lowest night temperature was 35°F. The average values for day and night temperatures during September were 65.4°F и 53.0°F respectivly.

Lahti Water Sea Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
52
55
58
61
64
67
70
73

The average sea surface temperature in September 2024 for Lahti was 63.8°F. The maximum and minimum values were 58.2°F and 68.0°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
27%
30%
43%

Most of the days in September are gloomy but you can also expect sunny days.

Precipitation Totals in September, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.4
0.8
1.2
1.6
1.9
2.3
2.7
3.1

Precipitation total in September for Lahti is 1.8 in.

Wind Speed in September, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.3
2.6
3.9
5.2
6.5
7.8
9.1
10.4

The average wind speed in September is 6.7 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.9
3.8
5.7
7.7
9.6
11.5
13.4

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Lahti in September is 6.1 hours.

Best Time to Visit Lahti
The most sunny months:
June 12 days
May 12 days
July 11 days
The most warm months:
July 73.5 °F
August 70.5 °F
June 69.5 °F
Warmest sea temperature:
August 69.9 °F
July 67.1 °F
September 62.8 °F
The most cold months:
January 20.4 °F
February 23.0 °F
December 26.1 °F
The most rainy months:
July 4 days
June 4 days
August 4 days
The most windy months:
December 7 mph
March 7 mph
October 7 mph

Lahti on the Weather Map

Finland Resorts:
NAME
Espoo +40
Helsinki +38
Imatra +40
Juvaskyla +44
Kemi +30
Koli National Park +36
Kotka +38
Lahti +42
Lappeenranta +42
Oulu +32
Porvoo +38
Saariselka +24
Turku +38
Vaasa +36
Vantaa +40
24 Hours Weather Forecast
Lahti
Local time: 03:40
15 apr, tuesday
0600 40°F
E
4 mph
0900 50°F
SE
6 mph
1200 56°F
SE
4 mph
1500 60°F
E
2 mph
1800 56°F
W
1 mph
2100 46°F
NW
5 mph
16 apr, wednesday
0000 42°F
NW
4 mph
0300 40°F
NW
4 mph