Järvenpää Weather in September

September in Järvenpää brings moderate temperatures, with highs of 16°C (61°F) and nights dropping to 8°C (46°F). Rainfall is on the higher side this month, averaging around 60 mm (2.4 in), so keep a rain jacket handy.

Rainfall in Järvenpää in September

Rain is expected on roughly 17 days, totalling around 60 mm (2.4 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Järvenpää in September

In September, expect moderate temperatures in Järvenpää, with highs of 16°C (61°F) and lows of 8°C (46°F) at night. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Järvenpää in September

The area experiences a moderate amount of sunshine, with approximately 151 hours of sunlight expected. This means a decent mix of sun and overcast.

Wind Speed in Järvenpää in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

With water at 13°C (55°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Järvenpää.

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

Järvenpää Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 16°C (61°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 55%  

Precipitation 60 mm (2.4 in)  

Rainy days 17 days  

Humidity 84% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 151 hours *  

Percentage Sunshine *  

* Data from: Helsinki, Finland (18 KM, 11 Miles).

What to Wear in Järvenpää in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 13°C (55°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Järvenpää 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

Barbeque

6/10

Camping

4/10

Outdoor sports

10/10

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 Järvenpää's climate page.

More climate data for Järvenpää

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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