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.
Siilinjärvi Weather in September
During September, Siilinjärvi experiences moderate daytime temperatures of 15°C (59°F) and cooler nights around 7°C (45°F). Expect quite a bit of rainfall. Around 74 mm (2.9 in) is typical.
Rainfall in Siilinjärvi in September
Rain is expected on roughly 17 days, totalling around 74 mm (2.9 in) 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 Siilinjärvi in September
September in Siilinjärvi brings typical temperatures with highs around 15°C (59°F) and lows of 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer 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.
Siilinjärvi Temperature in September
Min Temperature
7°C (45°F)
Max Temperature
15°C (59°F)
Chance of Rain
58%
Precipitation
74 mm (2.9 in)
Rainy days
17 days
Siilinjärvi Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Siilinjärvi - and find the best time to visit.
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
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).
What to Wear in Siilinjärvi in September
The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket.
What To Do in Siilinjärvi in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Barbeque5/10 -
Camping4/10 -
Outdoor sports9/10
Siilinjärvi 3-Day Forecast
More climate data for Siilinjärvi
See the full Siilinjärvi climate overview or explore weather in Finland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Helsinki
16°C (61°F) Turku17°C (63°F) Tampere
15°C (59°F) Vuokatti
13°C (55°F) Rovaniemi13°C (55°F) Äkäslompolo12°C (54°F) Ruka12°C (54°F) Levi12°C (54°F) Bucket list
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Air Guitar World Championship Finland
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