Cary
September
Weather in Cary for September 2025
Your guide to Cary weather in September - trends and predictions
In general, the average temperature in Cary at the beginning of September is 30 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.7 °F by the end of September.
Cary sees moderate rainfall in September, averaging 10 rainy days.
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20
Dry days
10
Rainy days
0
Snow days
29°/18°
Temperatures
15 km/h
Avg max wind
67 %
Avg humidity
Cary in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2  28° | 3 29° | 4 30° | 5 31° | 6  31° | 7 30° |
| 8 30° | 9  28° | 10  28° | 11  29° | 12 29° | 13  28° | 14 28° |
| 15 27° | 16 25° | 17 25° | 18 28° | 19 26° | 20 29° | 21  28° |
| 22 27° | 23  21° | 24 25° | 25 28° | 26 24° | 27 24° | 28 26° |
| 29 26° | 30 27° |
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Temperatures trend during September in Cary
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 | Sunny | 31° /18° | 7.7 mm | 7 | |
| Sept. 2 | Partly cloudy | 28° /18° | 0.8 mm | 7 | |
| Sept. 3 | Sunny | 29° /17° | 0 mm | 8 | |
| Sept. 4 | Sunny | 30° /18° | 0 mm | 7 | |
| Sept. 5 | Sunny | 31° /19° | 0.1 mm | 7 | |
| Sept. 6 | Thundery outbreaks possible | 31° /20° | 0.2 mm | 7 | |
| Sept. 7 | Thundery outbreaks possible | 30° /20° | 0.7 mm | 7 | |
| Sept. 8 | Thundery outbreaks possible | 30° /17° | 1.5 mm | 7 | |
| Sept. 9 | Light rain shower | 28° /18° | 3 mm | 7 | |
| Sept. 10 | Moderate or heavy rain shower | 28° /17° | 5.6 mm | 7 | |
| Sept. 11 | Overcast | 29° /19° | 1.8 mm | 7 | |
| Sept. 12 | Overcast | 29° /18° | 0 mm | 7 | |
| Sept. 13 | Mist | 28° /19° | 1.8 mm | 7 | |
| Sept. 14 | Partly cloudy | 28° /19° | 1.1 mm | 7 | |
| Sept. 15 | Sunny | 27° /17° | 1.2 mm | 7 | |
| Sept. 16 | Partly cloudy | 25° /16° | 25.5 mm | 6 | |
| Sept. 17 | Light rain shower | 25° /18° | 59.3 mm | 6 | |
| Sept. 18 | Mist | 28° /19° | 11.9 mm | 6 | |
| Sept. 19 | Sunny | 26° /18° | 8.4 mm | 6 | |
| Sept. 20 | Partly cloudy | 29° /18° | 0 mm | 7 | |
| Sept. 21 | Cloudy | 28° /18° | 0.9 mm | 6 | |
| Sept. 22 | Overcast | 27° /19° | 0.3 mm | 6 | |
| Sept. 23 | Heavy rain | 21° /16° | 24.1 mm | 5 | |
| Sept. 24 | Overcast | 25° /18° | 7.3 mm | 6 | |
| Sept. 25 | Patchy rain possible | 28° /20° | 0 mm | 6 | |
| Sept. 26 | Patchy rain possible | 24° /19° | 0 mm | 6 | |
| Sept. 27 | Overcast | 24° /18° | 26.3 mm | 6 | |
| Sept. 28 | Overcast | 26° /18° | 1 mm | 6 | |
| Sept. 29 | Mist | 26° /17° | 0 mm | 6 | |
| Sept. 30 | Patchy rain possible | 27° /18° | 4.5 mm | 6 | |
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Important Notice
Our weather forecast for Cary 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 Cary forecast closer to your planned date for the most up-to-date weather information.
Cary in September - FAQ
What are the expected maximum and minimum temperatures in Cary during September?
During September, expect a variety of temperatures with highs around 29° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Cary during September?
Moderate rainfall is anticipated in Cary during September, with a total of 87.1 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Cary during September?
The average wind speed in Cary during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Cary
Explore the daily rainfall trends and prepare for Carys September weather 💧
UV exposure in Cary during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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