Oulunkaari (Kerälä)
September
Weather in Oulunkaari for September 2026
Your guide to Oulunkaari weather in September - trends and predictions
Until now, September 2026 in Oulunkaari is cooler than usual, with temperatures averaging 12.3 °C, this is 4.4 °C below the typical seasonal average.
The forecast for the next days in Oulunkaari predicts a temperature of 9.6 °C, which is cooler than the historical average.
In general, the average temperature in Oulunkaari at the beginning of September is 17.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9 °C by the end of September.
The climate of Oulunkaari in September is notably wet, with an average of 14 rainy days, and a total of 63.7 mm of precipitation.
Temperatures
Rain 🌧️
16
Dry days
14
Rainy days
0
Snow days
15°/8°
Temperatures
16 km/h
Avg max wind
82 %
Avg humidity
Oulunkaari Weather September
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Temperatures trend during September in Oulunkaari
See the weather trend as well as the moving average line
September weather in Oulunkaari day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Mist | 17° /11° | 1.4 mm | 3 | |
| 2 Sept. | Fog | 19° /9° | 0.2 mm | 4 | |
| 3 Sept. |  Light rain shower | 18° /11° | 2 mm | 3 | |
| 4 Sept. | Light rain shower | 18° /10° | 1.9 mm | 3 | |
| 5 Sept. | Mist | 18° /9° | 0.7 mm | 3 | |
| 6 Sept. | Patchy rain possible | 18° /9° | 0.3 mm | 3 | |
| 7 Sept. |  Overcast | 17° /9° | 0 mm | 4 | |
| 8 Sept. |  Sunny | 17° /10° | 7 mm | 3 | |
| 9 Sept. |  Partly cloudy | 18° /11° | 1.9 mm | 3 | |
| 10 Sept. | Sunny | 18° /10° | 1.4 mm | 4 | |
| 11 Sept. | Light rain shower | 16° /10° | 1.3 mm | 3 | |
| 12 Sept. | Overcast | 17° /10° | 0.4 mm | 3 | |
| 13 Sept. |  Moderate rain | 14° /9° | 7.5 mm | 3 | |
| 14 Sept. |  Light rain | 13° /7° | 2.6 mm | 3 | |
| 15 Sept. | Light drizzle | 12° /5° | 4.1 mm | 2 | |
| 16 Sept. | Mist | 13° /6° | 3.3 mm | 2 | |
| 17 Sept. | Patchy rain possible | 12° /10° | 1.6 mm | 0.7 | |
| 18 Sept. | Patchy rain possible | 11° /9° | 3.6 mm | 1.3 | |
| 19 Sept. | Overcast | 12° /8° | 1.5 mm | 0.8 | |
| 20 Sept. | Light rain shower | 11° /8° | 11.8 mm | 0.8 | |
| 21 Sept. | Patchy rain possible | 11° /6° | 2 mm | 3 | |
| 22 Sept. | Overcast | 7° /4° | 0 mm | 3 | |
| 23 Sept. | Overcast | 8° /4° | 0 mm | 2 | |
| 24 Sept. | Overcast | 11° /5° | 0 mm | 4 | |
| 25 Sept. | Overcast | 8° /3° | 0 mm | 3 | |
| 26 Sept. | Overcast | 6° /1° | 0 mm | 2 | |
| 27 Sept. | Mist | 13° /6° | 0 mm | 4 | |
| 28 Sept. | Overcast | 9° /4° | 0 mm | 3 | |
| 29 Sept. | Overcast | 9° /2° | 0 mm | 2 | |
| 30 Sept. | Sunny | 7° /0° | 0 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Oulunkaari 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 Oulunkaari forecast closer to your planned date for the most up-to-date weather information.
Change Month
Oulunkaari in September - FAQ
What are the expected maximum and minimum temperatures in Oulunkaari during September?
During September, expect a variety of temperatures with highs around 15° and lows near 8°, suitable for diverse activities and preferences.
How much rainfall should be expected in Oulunkaari during September?
Moderate rainfall is anticipated in Oulunkaari during September, with a total of 63.7 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Oulunkaari during September?
The average wind speed in Oulunkaari during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Oulunkaari
Explore the daily rainfall trends and prepare for Oulunkaaris September weather 💧
Typically, Oulunkaari has 14 rainy days in September with a total of 63.7 mm of rainfall.
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