Kuusamo Weather in September
During September, Kuusamo experiences low daytime temperatures of 12°C (54°F) and cooler nights around 5°C (41°F). Expect quite a bit of rainfall. Around 67 mm (2.6 in) is typical.
Rainfall in Kuusamo in September
You can expect rain on around 19 days based on historical patterns, with 67 mm (2.6 in) average for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.
Temperature in Kuusamo in September
If you're visiting Kuusamo in September, expect highs of 12°C (54°F) and overnight lows around 5°C (41°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Wind Speed in Kuusamo in September
Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.If you prefer dry days with pleasant temperatures, July typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Kuusamo's climate page.
Kuusamo Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
12°C (54°F)
Chance of Rain
63%
Precipitation
67 mm (2.6 in)
Rainy days
19 days
Humidity
85%
Windspeed
3 m/s (6 knots)
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kuusamo typically drop from around 13°C (55°F) at the start of September to approximately 7°C (45°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 6°C (43°F).
Average temperatures in September
Historical weather for Kuusamo in September
Browse day-by-day weather records for Kuusamo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kuusamo historical weather extremes in September
Our historical data for Kuusamo spans 1976 to 2025, revealing these weather extremes.
- On September 10, 2024, temperatures climbed to 22°C (72°F), marking the warmest September day on record.
- The coldest September day was on September 27, 1986, with a maximum of 0°C (32°F).
- Nighttime temperatures dropped to -8°C (18°F) on September 16, 1993, marking the coldest September night on record.
Best Places in Finland in September
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Kuusamo in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days.What To Do in Kuusamo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Kuusamo's climate page.
Temperature Rainfall Humidity Wind Speed
See the full Kuusamo climate overview or explore weather in Finland.
