Ilomantsi Weather in September

Ilomantsi in September sees moderate temperatures, with highs around 14°C (57°F) and overnight lows of 6°C (43°F). Rainfall is fairly high at around 76 mm (3 in) on average, so pack waterproofs just in case.

Rainfall in Ilomantsi in September

You can typically expect 18 days of rain this month, averaging around 76 mm (3 in). This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Ilomantsi in September

In September, Ilomantsi sees moderate temperatures, with highs of 14°C (57°F). Nights drop to around 6°C (43°F). Conditions are often most pleasant around the middle of the day. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Ilomantsi in September

The month experiences a moderate amount of sunlight, with 110 hours of sunshine. This provides a nice balance between sunshine and clouds.

If you prefer dry days with pleasant temperatures, 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.

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For a detailed overview over the year and the best time to visit Finland, check out our Ilomantsi's climate page.

Ilomantsi Temperature in September

Min Temperature 6°C (43°F)  

Max Temperature 14°C (57°F)  

Chance of Rain 60%  

Precipitation 76 mm (3 in)  

Rainy days 18 days  

Sunshine 110 hours *  

Percentage Sunshine *  

* Data from: Joensuu, Finland (60 KM, 37 Miles).

What to Wear in Ilomantsi 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Ilomantsi in September

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Finland, check out our Ilomantsi's climate page.

More climate data for Ilomantsi

Temperature Rainfall Sunshine

See the full Ilomantsi climate overview or explore weather in Finland.