Lahti weather in September (Southern Finland, Finland)

Looking to travel to Lahti in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In September, Lahti generally has moderate temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 16°C. But by evening, they drop to around 8°C.

Lahti in September usually receives moderate rainfall, averaging around 59 mm for the month. When we look at the climate data from the last 30 years, we can expect around 17 days of rain.

In case you lean more towards enjoying temperate temperatures and rain-free days June, July and August typically offer the most optimal weather. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Lahti climate page with graphs.

 

Lahti, monthly averages in September

Min TemperatureMin Temperature 8°C  
Max TemperatureMax Temperature 16°C  
Chance of RainChance of Rain 58%  
PrecipitationPrecipitation 59 mm  
Rainy daysRainy days 17 days  

Where to go in Finland in September

Find out more about the weather in Finland in September and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Lahti in September?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Cycling
6/10
Walking
6/10
Barbeque
5/10
Camping
4/10
Outdoor sports
10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Lahti.

Our site offers climate and forecast data for every country in the world. Are you going to Finland? On this website you can find historical weather averages for many cities in Finland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.