Salem
September
Weather in Salem for September 2025
Your guide to Salem weather in September - trends and predictions
In general, the average temperature in Salem at the beginning of September is 28.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °F by the end of September.
Salem sees moderate rainfall in September, averaging 10 rainy days.
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20
Dry days
10
Rainy days
0
Snow days
24°/10°
Temperatures
13 km/h
Avg max wind
68 %
Avg humidity
Salem in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  27° | 3 27° | 4 28° | 5 30° | 6  30° | 7 28° |
| 8  29° | 9 28° | 10 27° | 11  21° | 12 23° | 13 24° | 14 27° |
| 15 28° | 16 28° | 17 21° | 18 22° | 19 22° | 20  21° | 21 25° |
| 22 25° | 23 23° | 24  25° | 25  17° | 26 21° | 27 19° | 28 20° |
| 29 18° | 30 22° |
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Temperatures trend during September in Salem
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Fog | 30° /14° | 0.2 mm | 7 | |
| Sept. 2 | Thundery outbreaks possible | 27° /13° | 1 mm | 6 | |
| Sept. 3 | Mist | 27° /11° | 0.1 mm | 6 | |
| Sept. 4 | Mist | 28° /10° | 0.4 mm | 7 | |
| Sept. 5 | Mist | 30° /11° | 0 mm | 7 | |
| Sept. 6 | Partly cloudy | 30° /13° | 0 mm | 8 | |
| Sept. 7 | Mist | 28° /12° | 0 mm | 7 | |
| Sept. 8 | Sunny | 29° /11° | 0 mm | 8 | |
| Sept. 9 | Mist | 28° /11° | 0 mm | 7 | |
| Sept. 10 | Partly cloudy | 27° /10° | 0 mm | 7 | |
| Sept. 11 | Overcast | 21° /11° | 8.9 mm | 5 | |
| Sept. 12 | Mist | 23° /10° | 0.2 mm | 6 | |
| Sept. 13 | Mist | 24° /10° | 0 mm | 6 | |
| Sept. 14 | Mist | 27° /10° | 0 mm | 6 | |
| Sept. 15 | Sunny | 28° /10° | 0 mm | 7 | |
| Sept. 16 | Partly cloudy | 28° /10° | 0 mm | 7 | |
| Sept. 17 | Overcast | 21° /10° | 7.3 mm | 5 | |
| Sept. 18 | Overcast | 22° /11° | 1.5 mm | 5 | |
| Sept. 19 | Mist | 22° /9° | 0 mm | 5 | |
| Sept. 20 | Light rain shower | 21° /9° | 0.2 mm | 5 | |
| Sept. 21 | Partly cloudy | 25° /6° | 0 mm | 7 | |
| Sept. 22 | Sunny | 25° /9° | 0 mm | 6 | |
| Sept. 23 | Patchy rain possible | 23° /10° | 0.2 mm | 5 | |
| Sept. 24 | Light drizzle | 25° /11° | 1.9 mm | 6 | |
| Sept. 25 | Moderate or heavy rain with thunder | 17° /12° | 4.3 mm | 4 | |
| Sept. 26 | Light rain shower | 21° /10° | 3.6 mm | 5 | |
| Sept. 27 | Light rain shower | 19° /10° | 7.9 mm | 5 | |
| Sept. 28 | Patchy light rain | 20° /8° | 1 mm | 5 | |
| Sept. 29 | Patchy rain possible | 18° /8° | 0 mm | 5 | |
| Sept. 30 | Sunny | 22° /5° | 0 mm | 6 | |
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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.
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 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Salem during September?
In September, Salem can expect light to moderate rainfall, totaling 42 mm across approximately 10 days. Occasional showers are possible, and planning ahead for them could be helpful.
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.
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