Click on a day for an hourly weather forecast
The temperatures in Chapel Hill in September are comfortable with low of 18°C and and high up to 28°C.
You can expect rain for roughly half of the month of September in Chapel Hill. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Chapel Hill in September 2025.
If you’re planning to visit Chapel Hill in the near future, we highly recommend that you review the 14 day weather forecast for Chapel Hill before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 1° | 7 | 22 | 2 | 95 mm | Awful | Chapel Hill in January |
| February | 12° / 2° | 8 | 19 | 1 | 89 mm | Bad | Chapel Hill in February |
| March | 16° / 6° | 8 | 23 | 1 | 99 mm | Ok | Chapel Hill in March |
| April | 21° / 10° | 6 | 23 | 0 | 98 mm | Good | Chapel Hill in April |
| May | 26° / 15° | 9 | 22 | 0 | 101 mm | Good | Chapel Hill in May |
| June | 30° / 19° | 9 | 21 | 0 | 102 mm | Ok | Chapel Hill in June |
| July | 32° / 22° | 13 | 18 | 0 | 117 mm | Ok | Chapel Hill in July |
| August | 31° / 21° | 12 | 19 | 0 | 108 mm | Ok | Chapel Hill in August |
| September | 28° / 18° | 8 | 22 | 0 | 127 mm | Good | Chapel Hill in September |
| October | 22° / 12° | 6 | 26 | 0 | 78 mm | Good | Chapel Hill in October |
| November | 15° / 6° | 5 | 25 | 0 | 91 mm | Good | Chapel Hill in November |
| December | 11° / 3° | 7 | 23 | 1 | 100 mm | Bad | Chapel Hill in December |