Chapel Hill (NC)
September
Weather in Chapel Hill, North Carolina for September 2026
Your guide to Chapel Hill weather in September - trends and predictions
In general, the average temperature in Chapel Hill at the beginning of September is 28.3 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 25.6 °F by the end of September.
Chapel Hill experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 262.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
23
Dry days
7
Rainy days
0
Snow days
26°/18°
Temperatures
13 km/h
Avg max wind
72 %
Avg humidity
Chapel Hill Weather September
Move between months or click on a day
Temperatures trend during September in Chapel Hill
See the weather trend as well as the moving average line
September weather in Chapel Hill day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 26° /16° | 0 mm | 7 | |
| Sept. 2 |  Overcast | 23° /16° | 0 mm | 5 | |
| Sept. 3 |  Sunny | 27° /16° | 0 mm | 7 | |
| Sept. 4 | Sunny | 31° /18° | 0 mm | 8 | |
| Sept. 5 | Sunny | 33° /21° | 0 mm | 8 | |
| Sept. 6 | Overcast | 33° /22° | 9 mm | 7 | |
| Sept. 7 |  Fog | 25° /19° | 43.5 mm | 6 | |
| Sept. 8 | Overcast | 24° /17° | 0 mm | 5 | |
| Sept. 9 | Overcast | 22° /14° | 0 mm | 5 | |
| Sept. 10 | Overcast | 21° /17° | 0 mm | 5 | |
| Sept. 11 | Overcast | 23° /17° | 0 mm | 5 | |
| Sept. 12 | Overcast | 25° /16° | 0 mm | 6 | |
| Sept. 13 | Partly cloudy | 27° /18° | 0 mm | 7 | |
| Sept. 14 | Sunny | 30° /16° | 0 mm | 8 | |
| Sept. 15 | Partly cloudy | 29° /19° | 0 mm | 7 | |
| Sept. 16 |  Moderate or heavy rain shower | 20° /15° | 88.8 mm | 5 | |
| Sept. 17 | Overcast | 21° /15° | 0 mm | 5 | |
| Sept. 18 | Partly cloudy | 27° /17° | 0 mm | 7 | |
| Sept. 19 | Mist | 32° /20° | 0 mm | 7 | |
| Sept. 20 | Overcast | 28° /22° | 0 mm | 6 | |
| Sept. 21 | Overcast | 26° /18° | 0 mm | 6 | |
| Sept. 22 | Mist | 28° /18° | 0 mm | 6 | |
| Sept. 23 | Fog | 28° /16° | 0 mm | 6 | |
| Sept. 24 | Partly cloudy | 30° /20° | 0 mm | 8 | |
| Sept. 25 |  Heavy rain at times | 28° /22° | 10.6 mm | 6 | |
| Sept. 26 | Partly cloudy | 28° /23° | 8.4 mm | 7 | |
| Sept. 27 | Moderate or heavy rain shower | 26° /22° | 83.5 mm | 6 | |
| Sept. 28 | Fog | 24° /20° | 0 mm | 5 | |
| Sept. 29 | Overcast | 22° /19° | 0 mm | 5 | |
| Sept. 30 | Moderate or heavy rain shower | 21° /19° | 18.8 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Chapel Hill 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 Chapel Hill forecast closer to your planned date for the most up-to-date weather information.
Change Month
Chapel Hill in September - FAQ
What are the expected maximum and minimum temperatures in Chapel Hill during September?
During September, expect a variety of temperatures with highs around 26° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Chapel Hill during September?
Significant rainfall exceeding 262.6 mm is expected in Chapel Hill during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Chapel Hill during September?
The average wind speed in Chapel Hill during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Chapel Hill
Explore the daily rainfall trends and prepare for Chapel Hills September weather 💧
UV exposure in Chapel Hill during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Chapel Hill weather pages
You are here
Where is Chapel Hill?Get accurate weather forecasts for Chapel Hill, located at latitude 35.913 and longitude -79.056. Stay updated with localized weather information tailored for Chapel Hill.
Found a mistake?
We appreciate your attention to details. Tell us here.