Click on a day for an hourly weather forecast
The temperatures in Concord in September are comfortable with low of 15°C and and high up to 29°C.
You can expect up to 3 rainy days in Concord during the month of September.
Our weather forecast can give you a great sense of what weather to expect in Concord in September 2025.
If you’re planning to visit Concord in the near future, we highly recommend that you review the 14 day weather forecast for Concord before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 6° | 5 | 26 | 0 | 92 mm | Good | Concord in January |
| February | 16° / 6° | 4 | 24 | 0 | 90 mm | Good | Concord in February |
| March | 17° / 7° | 6 | 26 | 0 | 89 mm | Good | Concord in March |
| April | 20° / 8° | 2 | 28 | 0 | 36 mm | Good | Concord in April |
| May | 23° / 10° | 1 | 30 | 0 | 16 mm | Perfect | Concord in May |
| June | 27° / 13° | 0 | 30 | 0 | 6 mm | Perfect | Concord in June |
| July | 29° / 14° | 0 | 31 | 0 | 2 mm | Good | Concord in July |
| August | 29° / 15° | 0 | 31 | 0 | 1 mm | Good | Concord in August |
| September | 29° / 15° | 0 | 30 | 0 | 4 mm | Good | Concord in September |
| October | 24° / 13° | 2 | 29 | 0 | 35 mm | Perfect | Concord in October |
| November | 18° / 9° | 3 | 27 | 0 | 55 mm | Good | Concord in November |
| December | 14° / 7° | 5 | 26 | 0 | 79 mm | Good | Concord in December |