Lahti in september: average Weather, Temperature and Climate
Weather in Lahti in september 2025
The weather in Lahti in september comes from statistical datas on the past years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather 1.9cm
Weather at 6am
52°F
Cloudy
28% of time
27%
25%
11%
Weather at 12pm
59°F
Cloudy
34% of time
25%
23%
15%
Weather at 6pm
52°F
Clear/Sunny
25% of time
23%
22%
16%
Weather at 3am
49°F
47%
14%
13%
13%
Evolution of daily average temperature and precipitation in Lahti in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Lahti in september.
The climate of Lahti in september is tolerable
The climate in september in Lahti is wet (with 2.5in of precipitation over 4 days). This is better than the previous month since in august it receives an average of 2.7in of precipitation over 4 days.
The climate is quite cool in this city september, but it is tolerable when dressing hot. The high seasonal norm is 59°F. The minimum is 52°F. Thus, the mean temperature average in september in Lahti is 56°F. Note that seasonal normals in contrast with those observed in Lahti in the month of september with a maximum record of 76°F in 2018 and a minimum record of 34°F in 2013. You can hope to have about 6 days with temperatures up to 65°F, or 20% of the month.
On average, in Lahti, the days of september last 12:54. The sun rises at 05:45 and sunset is at 18:39.
With proper weather, the month of september is okay (but not the best) to go in this locality in Finland.
Lahti: another month?
If you can push the dates of your trip to Lahti forward, the month of october has a better weather forecast than september. more information
September: another location in Finland?
If you want to go to Finland in september, there are destinations with better weather than Lahti:
In september, Helsinki, Turku, Masku, Pori, Turku Archipelago (Abo Skargard) and Ekenäs have good weather.
Seasonal average climate and temperature of Lahti in september
Check below seasonal norms These datas are set from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 56°F | ||||
| Highest temperature | 59°F | ||||
| Lowest temperature | 52°F | ||||
| Highest record temperature | 76°F (2018) | ||||
| Lowest record temperature | 34°F (2013) | ||||
| Number of days at +65°F | 6 day(s) (20%) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Wind | |||||
| Wind speed | 14km/h | ||||
| Wind temperature | 49°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.5in | ||||
| Number of days with rainfall | 4 day(s) (13%) | ||||
| Record daily rainfall | 1.4in (2012) | ||||
| Snowfall | 1.9cm | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 7.93km | ||||
| Cloud cover | 56% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:45 | ||||
| Time of sunset | 18:39 | ||||
| Length of day | 12:54 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Lahti in september 2024:
52°F to 59°F
52°F to 70°F
59°F to 72°F
61°F to 76°F
59°F to 79°F
58°F to 74°F
54°F to 74°F
56°F to 76°F
54°F to 72°F
61°F to 72°F
58°F to 67°F
54°F to 72°F
59°F to 61°F
59°F to 70°F
54°F to 58°F
50°F to 70°F
56°F to 68°F
50°F to 65°F
50°F to 68°F
50°F to 68°F
49°F to 58°F
38°F to 52°F
45°F to 56°F
50°F to 63°F
56°F to 65°F
56°F to 59°F
56°F to 59°F
49°F to 54°F
41°F to 50°F
36°F to 50°F
Map: other cities in Finland in september
Cities near Lahti:
| Heinola in september | tolerable weather |
| Mäntsälä in september | good weather |
| Riihimäki in september | good weather |
| Kouvola in september | tolerable weather |
| Hämeenlinna in september | tolerable weather |
| Porvoo in september | good weather |
| Vantaa in september | good weather |
| Kotka in september | tolerable weather |
| Hamina in september | tolerable weather |
| Helsinki in september | good weather |
| Jämsä in september | tolerable weather |
| Forssa in september | good weather |
Click over cities on the map for information about the weather in september.
Lahti
perfect weather
good
tolerable
bad
very bad
Weather data for Lahti in september:
Weather data for Lahti for september are derived from an average of the weather forecast since 2009 in Lahti. There is a margin of error and these forecasts are to be considered as general information only. The weather in Lahti can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Lahti.