Roseburg (OR)
September
Weather in Roseburg, Oregon for September 2026
Your guide to Roseburg weather in September - trends and predictions
In general, the average temperature in Roseburg 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, Roseburg 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
Roseburg Weather September
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Temperatures trend during September in Roseburg
See the weather trend as well as the moving average line
September weather in Roseburg 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 Roseburg 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 Roseburg forecast closer to your planned date for the most up-to-date weather information.
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Roseburg in September - FAQ
What are the expected maximum and minimum temperatures in Roseburg 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 Roseburg during September?
In September, Roseburg 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 Roseburg during September?
The average wind speed in Roseburg during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Roseburg
Explore the daily rainfall trends and prepare for Roseburgs September weather 💧
Typically, Roseburg has 2 rainy days in September with a total of 21.2 mm of rainfall.
UV exposure in Roseburg during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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