Douglas County (Roseburg)
September
Weather in Douglas County, Oregon for September 2026
Your guide to Douglas County weather in September - trends and predictions
In general, the average temperature in Douglas County at the beginning of September is 27.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.6 °F by the end of September.
With an average of 2 rainy days, Douglas County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
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28
Dry days
2
Rainy days
0
Snow days
25°/12°
Temperatures
13 km/h
Avg max wind
70 %
Avg humidity
Douglas County Weather September
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Temperatures trend during September in Douglas County
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September weather in Douglas County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Mist | 25° /14° | 0 mm | 6 | |
| Sept. 2 | Mist | 30° /12° | 0 mm | 6 | |
| Sept. 3 | Mist | 31° /13° | 0 mm | 7 | |
| Sept. 4 | Mist | 30° /13° | 0 mm | 7 | |
| Sept. 5 |  Partly cloudy | 29° /15° | 0 mm | 7 | |
| Sept. 6 |  Thundery outbreaks possible | 25° /14° | 0 mm | 6 | |
| Sept. 7 |  Overcast | 24° /15° | 0 mm | 1 | |
| Sept. 8 |  Moderate or heavy rain shower | 21° /11° | 17.3 mm | 5 | |
| Sept. 9 | Fog | 22° /14° | 0 mm | 3 | |
| Sept. 10 | Overcast | 22° /16° | 0 mm | 3 | |
| Sept. 11 | Mist | 19° /13° | 0 mm | 1 | |
| Sept. 12 | Overcast | 25° /14° | 0 mm | 4 | |
| Sept. 13 | Fog | 27° /9° | 0 mm | 6 | |
| Sept. 14 |  Light rain | 20° /11° | 3.9 mm | 3 | |
| Sept. 15 | Mist | 27° /7° | 0 mm | 6 | |
| Sept. 16 |  Sunny | 34° /12° | 0 mm | 5 | |
| Sept. 17 | Sunny | 27° /14° | 0 mm | 5 | |
| Sept. 18 | Overcast | 16° /13° | 0 mm | 2 | |
| Sept. 19 | Mist | 28° /11° | 0 mm | 5 | |
| Sept. 20 | Mist | 26° /11° | 0 mm | 5 | |
| Sept. 21 | Overcast | 17° /12° | 0 mm | 3 | |
| Sept. 22 | Partly cloudy | 25° /10° | 0 mm | 5 | |
| Sept. 23 | Sunny | 33° /12° | 0 mm | 5 | |
| Sept. 24 | Sunny | 33° /15° | 0 mm | 5 | |
| Sept. 25 | Mist | 24° /10° | 0 mm | 4 | |
| Sept. 26 | Sunny | 25° /8° | 0 mm | 4 | |
| Sept. 27 | Overcast | 26° /9° | 0 mm | 4 | |
| Sept. 28 | Overcast | 24° /9° | 0 mm | 4 | |
| Sept. 29 | Thundery outbreaks possible | 17° /15° | 0 mm | 1 | |
| Sept. 30 | Overcast | 16° /10° | 0 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Douglas County 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 Douglas County forecast closer to your planned date for the most up-to-date weather information.
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Douglas County in September - FAQ
What are the expected maximum and minimum temperatures in Douglas County during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Douglas County during September?
In September, Douglas County can expect light to moderate rainfall, totaling 21.2 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Douglas County during September?
The average wind speed in Douglas County during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Douglas County
Explore the daily rainfall trends and prepare for Douglas Countys September weather 💧
Typically, Douglas County has 2 rainy days in September with a total of 21.2 mm of rainfall.
UV exposure in Douglas County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Douglas County?Get accurate weather forecasts for Douglas County, located at latitude 43.217 and longitude -123.342. Stay updated with localized weather information tailored for Douglas County.
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