Air Guitar World Championship Finland
This is something you might want to add to your bucket list. August is also the perfect time to visit Finland. The days are long and the temperature is amazing.
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.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Ruka.
Pick a month to see the average temperature, rainfall and sunshine in Ruka - and find the best time to visit.
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).
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.
Our historical data for Ruka spans 1976 to 2025, revealing these weather extremes.
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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Humidity Wind Speed
See the full Ruka climate overview or explore weather in Finland.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Air Guitar World Championship Finland
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