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Weather in Lappajärvi for September 2026

Your guide to Lappajärvi weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Lappajärvi is cooler than usual, with temperatures averaging 15.5 °C, this is 4.1 °C below the typical seasonal average.

  • The forecast for the next days in Lappajärvi predicts a temperature of 13.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Lappajärvi at the beginning of September is 19.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.6 °C by the end of September.

    • Rain 🌧️

  • Lappajärvi in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 74.5 mm.

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/9°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Lappajärvi Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Fog
18°
2
Mist
20°
3
Patchy rain possible
18°
4
Sunny
21°
5
Patchy rain possible
21°
6
Sunny
20°
7
Sunny
21°
8
Patchy rain possible
20°
9
Partly cloudy
19°
10
Overcast
19°
11
Heavy rain at times
19°
12
Heavy rain at times
17°
13
Fog
13°
14
Sunny
13°
15
Overcast
14°
16
Overcast
15°
17
Patchy rain possible
15°
18
Fog
13°
19
Mist
15°
20
Overcast
13°
21
Patchy rain possible
12°
22
Light rain shower
11°
23
Overcast
13°
24
Light rain shower
9°
25
Sunny
15°
26
Sunny
19°
27
Moderate or heavy rain shower
13°
28
Patchy rain possible
12°
29
Sunny
10°
30
Partly cloudy
10°

Temperatures trend during September in Lappajärvi

See the weather trend as well as the moving average line

September weather in Lappajärvi day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Fog
Fog
 18° /10° 2 mm 3
2 Sept. Mist
Mist
 20° /9° 0.6 mm 4
3 Sept. Patchy rain possible
Patchy rain possible
 18° /10° 3.6 mm 3
4 Sept. Sunny
Sunny
 21° /9° 0.3 mm 4
5 Sept. Patchy rain possible
Patchy rain possible
 21° /11° 0.5 mm 4
6 Sept. Sunny
Sunny
 20° /10° 0 mm 5
7 Sept. Sunny
Sunny
 21° /9° 4.3 mm 4
8 Sept. Patchy rain possible
Patchy rain possible
 20° /12° 2.8 mm 3
9 Sept. Partly cloudy
Partly cloudy
 19° /12° 6 mm 4
10 Sept. Overcast
Overcast
 19° /11° 4 mm 4
11 Sept. Heavy rain at times
Heavy rain at times
 19° /10° 2.3 mm 4
12 Sept. Heavy rain at times
Heavy rain at times
 17° /12° 3.2 mm 4
13 Sept. Fog
Fog
 13° /7° 2.3 mm 1
14 Sept. Sunny
Sunny
 13° /5° 0 mm 1.9
15 Sept. Overcast
Overcast
 14° /5° 0 mm 1.5
16 Sept. Overcast
Overcast
 15° /9° 1.7 mm 0.7
17 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 5.1 mm 3
18 Sept. Fog
Fog
 13° /9° 0.7 mm 3
19 Sept. Mist
Mist
 15° /8° 0 mm 3
20 Sept. Overcast
Overcast
 13° /9° 1.1 mm 3
21 Sept. Patchy rain possible
Patchy rain possible
 12° /8° 1.6 mm 4
22 Sept. Light rain shower
Light rain shower
 11° /8° 7.5 mm 3
23 Sept. Overcast
Overcast
 13° /7° 2.3 mm 4
24 Sept. Light rain shower
Light rain shower
 9° /6° 13.3 mm 2
25 Sept. Sunny
Sunny
 15° /5° 0.9 mm 4
26 Sept. Sunny
Sunny
 19° /8° 0 mm 5
27 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /6° 7.9 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 12° /4° 0.4 mm 3
29 Sept. Sunny
Sunny
 10° /2° 0 mm 3
30 Sept. Partly cloudy
Partly cloudy
 10° /2° 0 mm 4
Next
Important Notice
Our weather forecast for Lappajärvi in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lappajärvi forecast closer to your planned date for the most up-to-date weather information.
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Lappajärvi in September - FAQ

What are the expected maximum and minimum temperatures in Lappajärvi during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Lappajärvi during September?
Moderate rainfall is anticipated in Lappajärvi during September, with a total of 74.5 mm spread over approximately 16 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Lappajärvi during September?
The average wind speed in Lappajärvi during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Lappajärvi

Explore the daily rainfall trends and prepare for Lappajärvis September weather 💧
Typically, Lappajärvi has 16 rainy days in September with a total of 74.5 mm of rainfall.

UV exposure in Lappajärvi during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Lappajärvi?

Get accurate weather forecasts for Lappajärvi, located at latitude 63.2 and longitude 23.633. Stay updated with localized weather information tailored for Lappajärvi.

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