North Ostrobothnia (Oulu)
September
Weather in North Ostrobothnia for September 2026
Your guide to North Ostrobothnia weather in September - trends and predictions
Until now, September 2026 in North Ostrobothnia is cooler than usual, with temperatures averaging 13 °C, this is 2.6 °C below the typical seasonal average.
The forecast for the next days in North Ostrobothnia predicts temperatures to be around 12 °C, close to the historical average.
In general, the average temperature in North Ostrobothnia at the beginning of September is 17.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.9 °C by the end of September.
North Ostrobothnia experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 75.1 mm.
Temperatures
Rain 🌧️
9
Dry days
21
Rainy days
0
Snow days
15°/9°
Temperatures
20 km/h
Avg max wind
81 %
Avg humidity
North Ostrobothnia Weather September
Move between months or click on a day
What’s the Weather Like in North Ostrobothnia This September?
Discover the average temperatures and weather trends across North Ostrobothnia’s cities this September.
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
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 17° /11° | 2.4 mm | 3 | |
| 2 Sept. | Light rain shower | 18° /10° | 0.6 mm | 4 | |
| 3 Sept. | Light rain shower | 17° /11° | 5.3 mm | 3 | |
| 4 Sept. | Patchy rain possible | 18° /11° | 1.7 mm | 4 | |
| 5 Sept. | Patchy rain possible | 17° /11° | 1.1 mm | 4 | |
| 6 Sept. |  Partly cloudy | 17° /10° | 0.1 mm | 4 | |
| 7 Sept. |  Cloudy | 17° /9° | 0.9 mm | 4 | |
| 8 Sept. |  Mist | 18° /11° | 4.4 mm | 4 | |
| 9 Sept. | Partly cloudy | 18° /11° | 1.4 mm | 4 | |
| 10 Sept. |  Overcast | 19° /12° | 0.8 mm | 4 | |
| 11 Sept. | Partly cloudy | 18° /11° | 1.3 mm | 4 | |
| 12 Sept. | Fog | 17° /11° | 0.4 mm | 4 | |
| 13 Sept. | Mist | 14° /9° | 2.8 mm | 3 | |
| 14 Sept. | Cloudy | 13° /7° | 0.9 mm | 3 | |
| 15 Sept. | Overcast | 13° /6° | 1.8 mm | 3 | |
| 16 Sept. | Light rain shower | 13° /7° | 6 mm | 3 | |
| 17 Sept. |  Light drizzle | 13° /8° | 5.9 mm | 2 | |
| 18 Sept. | Overcast | 12° /7° | 0.2 mm | 2 | |
| 19 Sept. | Light rain | 14° /7° | 4.2 mm | 3 | |
| 20 Sept. | Light rain shower | 13° /7° | 12 mm | 2 | |
| 21 Sept. | Light rain | 11° /6° | 3.6 mm | 3 | |
| 22 Sept. | Overcast | 14° /7° | 5.1 mm | 3 | |
| 23 Sept. | Overcast | 13° /6° | 0 mm | 1.3 | |
| 24 Sept. | Patchy rain possible | 13° /8° | 2.7 mm | 0.8 | |
| 25 Sept. | Mist | 11° /10° | 1.4 mm | 1.3 | |
| 26 Sept. | Mist | 12° /10° | 1.3 mm | 3 | |
| 27 Sept. | Light rain shower | 12° /10° | 6.1 mm | 3 | |
| 28 Sept. | Patchy rain possible | 14° /9° | 0.4 mm | 4 | |
| 29 Sept. | Overcast | 14° /9° | 0 mm | 3 | |
| 30 Sept. | Mist | 14° /9° | 3.8 mm | 3 | |
| 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.
Change Month
North Ostrobothnia in September - FAQ
What are the expected maximum and minimum temperatures in North Ostrobothnia during September?
During September, expect a variety of temperatures with highs around 15° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in North Ostrobothnia during September?
Moderate rainfall is anticipated in North Ostrobothnia during September, with a total of 75.1 mm spread over approximately 21 days. Considering plans for rainy days is advisable.
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 💧
Typically, North Ostrobothnia has 21 rainy days in September with a total of 75.1 mm of rainfall.
Provinces in North Ostrobothnia
Select a province for an accurate weather forecast
Top locations in North Ostrobothnia
Select a location for an accurate weather forecast
More Locations Quick links
More North Ostrobothnia weather pages
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.