Salem (OR)
September
Weather in Salem, Oregon for September 2027
Your guide to Salem weather in September - trends and predictions
In general, the average temperature in Salem at the beginning of September is 26.5 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.
With an average of 5 rainy days, Salem experiences minimal rainfall in September.
Is September a good time to visit Salem? check out the best time to travel to Salem page.
✨ Is September a good time to visit Salem? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
25
Dry days
5
Rainy days
0
Snow days
24°/11°
Temperatures
13 km/h
Avg max wind
69 %
Avg humidity
Salem Weather September
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Temperatures trend during September in Salem
See the weather trend as well as the moving average line
September weather in Salem day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 27° /14° | 0.1 mm | 5 | |
| Sept. 2 |  Thundery outbreaks possible | 26° /12° | 25 mm | 5 | |
| Sept. 3 |  Heavy rain | 26° /13° | 26.7 mm | 6 | |
| Sept. 4 |  Moderate rain | 27° /12° | 10.4 mm | 6 | |
| Sept. 5 |  Mist | 28° /13° | 0.1 mm | 6 | |
| Sept. 6 |  Patchy rain possible | 26° /13° | 1.5 mm | 6 | |
| Sept. 7 | Mist | 25° /13° | 0 mm | 6 | |
| Sept. 8 |  Light rain | 26° /12° | 5.2 mm | 6 | |
| Sept. 9 | Patchy rain possible | 26° /12° | 1.1 mm | 6 | |
| Sept. 10 |  Partly cloudy | 26° /12° | 0 mm | 6 | |
| Sept. 11 | Light rain | 20° /11° | 4.4 mm | 4 | |
| Sept. 12 | Patchy rain possible | 23° /11° | 1.2 mm | 5 | |
| Sept. 13 | Mist | 22° /10° | 0.2 mm | 5 | |
| Sept. 14 |  Cloudy | 24° /10° | 0 mm | 6 | |
| Sept. 15 | Mist | 25° /10° | 0.1 mm | 5 | |
| Sept. 16 |  Sunny | 29° /10° | 0 mm | 5.8 | |
| Sept. 17 | Light rain | 24° /11° | 3.6 mm | 5 | |
| Sept. 18 | Overcast | 23° /12° | 0.8 mm | 5 | |
| Sept. 19 | Mist | 24° /10° | 0 mm | 5 | |
| Sept. 20 | Light rain shower | 23° /10° | 0.1 mm | 5 | |
| Sept. 21 | Light rain | 23° /9° | 2.8 mm | 5 | |
| Sept. 22 | Sunny | 24° /9° | 0.1 mm | 5 | |
| Sept. 23 | Patchy rain possible | 25° /10° | 0.1 mm | 5 | |
| Sept. 24 | Light rain | 26° /11° | 3.6 mm | 5 | |
| Sept. 25 |  Moderate or heavy rain with thunder | 18° /11° | 3.2 mm | 4 | |
| Sept. 26 | Patchy rain possible | 21° /9° | 1.8 mm | 4 | |
| Sept. 27 | Light rain | 22° /10° | 4 mm | 4.8 | |
| Sept. 28 | Overcast | 21° /9° | 0.5 mm | 4.7 | |
| Sept. 29 | Light rain | 18° /10° | 8.4 mm | 4 | |
| Sept. 30 | Light rain | 22° /8° | 3.6 mm | 4.6 | |
| Next | |||||
Important Notice
Our weather forecast for Salem 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 Salem forecast closer to your planned date for the most up-to-date weather information.
Change Month
Salem in September - FAQ
What are the expected maximum and minimum temperatures in Salem during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Salem during September?
Significant rainfall exceeding 108.6 mm is expected in Salem during September, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Salem during September?
The average wind speed in Salem during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Salem
Explore the daily rainfall trends and prepare for Salems September weather 💧
Typically, Salem has 5 rainy days in September with a total of 108.6 mm of rainfall.
UV exposure in Salem during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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