Ruka Weather in September
Ruka in September sees low daytime temperatures of 12°C (54°F) and nighttime lows of 5°C (41°F). Rainfall is fairly high this month at around 67 mm (2.6 in), so pack a rain jacket to stay dry.
Rainfall in Ruka in September
Historically, September sees about 19 days of rain, with a monthly average of 67 mm (2.6 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Ruka in September
Ruka in September gets highs of 12°C (54°F) during the day and drops to 5°C (41°F) at night. It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights drop to 5°C (41°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Wind Speed in Ruka 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.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Ruka.
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 Ruka's climate page.
Ruka Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
12°C (54°F)
Chance of Rain
62%
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 Ruka typically drop from around 12°C (54°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 Ruka in September
Browse day-by-day weather records for Ruka spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ruka historical weather extremes in September
Our historical data for Ruka spans 1976 to 2025, revealing these weather extremes.
- On September 10, 2024, temperatures climbed to 21°C (70°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 0°C (32°F), recorded on September 29, 2009.
- The coldest night in September in Ruka was on September 28, 1986, with a minimum of -8°C (18°F).
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
pleasant
tolerable
unpleasant
poor
What to Wear in Ruka 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 Ruka 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 Ruka's climate page.
Temperature Rainfall Humidity Wind Speed
See the full Ruka climate overview or explore weather in Finland.
