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North Ostrobothnia (Oulu)
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Weather in North Ostrobothnia for September 2025

Your guide to North Ostrobothnia weather in September - trends and predictions

    Temperatures

  • So far, September 2025 in North Ostrobothnia is slightly warmer than the historical average by 0.9 °C.

  • The forecast for the next days in North Ostrobothnia predicts a temperature of 9.3 °C, which is cooler than the historical average.

  • In general, the average temperature in North Ostrobothnia at the beginning of September is 18.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.7 °C by the end of September.

    • Rain 🌧️

  • North Ostrobothnia experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 175.5 mm.

Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/7°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
82 %
Avg humidity

North Ostrobothnia Weather September

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

What’s the Weather Like in North Ostrobothnia This September?

Discover the average temperatures and weather trends across North Ostrobothnia’s cities this September.
Patchy rain possibleOulu16 °C / 7 °CPatchy rain possibleKerälä15 °C / 8 °CCloudyKuusamo13 °C / 7 °CMore Locations

Temperatures trend during September in North Ostrobothnia

See the weather trend as well as the moving average line

September weather in North Ostrobothnia day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 17° /11° 1.7 mm 4
2 Sept. Light rain shower
Light rain shower
 19° /11° 0.8 mm 5
3 Sept. Light rain shower
Light rain shower
 17° /12° 5.9 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 0.7 mm 5
5 Sept. Light rain shower
Light rain shower
 19° /12° 1 mm 5
6 Sept. Partly cloudy
Partly cloudy
 19° /12° 0.1 mm 5
7 Sept. Cloudy
Cloudy
 19° /12° 1.2 mm 5
8 Sept. Mist
Mist
 19° /11° 4.2 mm 5
9 Sept. Partly cloudy
Partly cloudy
 20° /12° 0.7 mm 5
10 Sept. Overcast
Overcast
 20° /13° 0.2 mm 4
11 Sept. Partly cloudy
Partly cloudy
 20° /13° 1.7 mm 5
12 Sept. Fog
Fog
 18° /12° 0.5 mm 5
13 Sept. Mist
Mist
 15° /10° 3.1 mm 3
14 Sept. Cloudy
Cloudy
 13° /7° 1.3 mm 3
15 Sept. Overcast
Overcast
 13° /7° 2.4 mm 3
16 Sept. Light rain shower
Light rain shower
 13° /5° 3.5 mm 4
17 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 0.7 mm 0.3
18 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 0.3 mm 0.2
19 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 0.3 mm 0.3
20 Sept. Moderate rain
Moderate rain
 11° /6° 7.2 mm 0.1
21 Sept. Overcast
Overcast
 11° /7° 0 mm 0.3
22 Sept. Patchy rain possible
Patchy rain possible
 9° /6° 1.2 mm 2
23 Sept. Patchy rain possible
Patchy rain possible
 7° /4° 0.6 mm 2
24 Sept. Patchy rain possible
Patchy rain possible
 7° /2° 0.2 mm 1
25 Sept. Sunny
Sunny
 7° /1° 0 mm 2
26 Sept. Partly cloudy
Partly cloudy
 9° /2° 0 mm 3
27 Sept. Sunny
Sunny
 10° /2° 0 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
 8° /3° 0.2 mm 2
29 Sept. Patchy rain possible
Patchy rain possible
 6° /5° 0.5 mm 2
30 Sept. Moderate rain
Moderate rain
 7° /6° 5.7 mm 2
Next
Important Notice
Our weather forecast for North Ostrobothnia 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 North Ostrobothnia forecast closer to your planned date for the most up-to-date weather information.
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North Ostrobothnia in September - FAQ

What are the expected maximum and minimum temperatures in North Ostrobothnia during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in North Ostrobothnia during September?
Significant rainfall exceeding 175.5 mm is expected in North Ostrobothnia during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in North Ostrobothnia during September?
The average wind speed in North Ostrobothnia during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in North Ostrobothnia

Explore the daily rainfall trends and prepare for North Ostrobothnias September weather 💧
Provinces in North Ostrobothnia
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KoillismaaOuluOulunkaari
Top locations in North Ostrobothnia
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KeräläKuusamoOulu
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Location coordinates Where is North Ostrobothnia?

Get accurate weather forecasts for North Ostrobothnia, located at latitude 65.012 and longitude 25.468. Stay updated with localized weather information tailored for North Ostrobothnia.

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