Duncan
September
Weather in Duncan for September 2025
Your guide to Duncan weather in September - trends and predictions
In general, the average temperature in Duncan at the beginning of September is 20.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14 °C by the end of September.
Duncan sees moderate rainfall in September, averaging 8 rainy days.
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22
Dry days
8
Rainy days
0
Snow days
17°/10°
Temperatures
9 km/h
Avg max wind
78 %
Avg humidity
Duncan in September average weather
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Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 22° | 2 21° | 3 18° | 4 19° | 5 21° | 6 20° | 7 21° |
8 20° | 9 19° | 10 20° | 11 17° | 12 16° | 13 17° | 14 19° |
15 19° | 16 19° | 17 16° | 18 16° | 19 13° | 20 15° | 21 16° |
22 18° | 23 16° | 24 15° | 25 16° | 26 13° | 27 14° | 28 14° |
29 13° | 30 13° |
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Temperatures trend during September in Duncan
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 |
---|---|---|---|---|---|
1 Sept. | Partly cloudy | 22° /13° | 0 mm | 6 | |
2 Sept. | Cloudy | 21° /13° | 0 mm | 5 | |
3 Sept. | Light drizzle | 18° /13° | 0.2 mm | 4 | |
4 Sept. | Mist | 19° /11° | 0 mm | 5 | |
5 Sept. | Cloudy | 21° /12° | 0 mm | 5 | |
6 Sept. | Mist | 20° /12° | 0 mm | 5 | |
7 Sept. | Fog | 21° /12° | 0 mm | 5 | |
8 Sept. | Fog | 20° /12° | 0 mm | 5 | |
9 Sept. | Fog | 19° /11° | 0 mm | 5 | |
10 Sept. | Partly cloudy | 20° /12° | 0 mm | 5 | |
11 Sept. | Overcast | 17° /11° | 1.2 mm | 4 | |
12 Sept. | Fog | 16° /11° | 0 mm | 4 | |
13 Sept. | Fog | 17° /11° | 0.3 mm | 4 | |
14 Sept. | Mist | 19° /11° | 0.9 mm | 5 | |
15 Sept. | Partly cloudy | 19° /10° | 0 mm | 5 | |
16 Sept. | Overcast | 19° /10° | 0 mm | 5 | |
17 Sept. | Cloudy | 16° /12° | 1.6 mm | 4 | |
18 Sept. | Overcast | 16° /11° | 0.1 mm | 4 | |
19 Sept. | Overcast | 13° /11° | 0 mm | 3 | |
20 Sept. | Patchy rain possible | 15° /10° | 0.8 mm | 4 | |
21 Sept. | Overcast | 16° /9° | 0 mm | 4 | |
22 Sept. | Sunny | 18° /9° | 0 mm | 5 | |
23 Sept. | Light rain | 16° /11° | 2.7 mm | 4 | |
24 Sept. | Light rain | 15° /10° | 8.5 mm | 4 | |
25 Sept. | Light rain shower | 16° /11° | 5.8 mm | 4 | |
26 Sept. | Light drizzle | 13° /10° | 5.2 mm | 3 | |
27 Sept. | Light drizzle | 14° /10° | 5.3 mm | 4 | |
28 Sept. | Light drizzle | 14° /9° | 1.1 mm | 4 | |
29 Sept. | Cloudy | 13° /7° | 0 mm | 4 | |
30 Sept. | Sunny | 13° /7° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Duncan 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 Duncan forecast closer to your planned date for the most up-to-date weather information.
Duncan in September - FAQ
What are the expected maximum and minimum temperatures in Duncan during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Duncan during September?
In September, Duncan can expect light to moderate rainfall, totaling 47 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Duncan during September?
The average wind speed in Duncan during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Duncan
Explore the daily rainfall trends and prepare for Duncans September weather 💧
UV exposure in Duncan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Get accurate weather forecasts for Duncan, located at latitude 48.783 and longitude -123.703. Stay updated with localized weather information tailored for Duncan.
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