Click on a day for an hourly weather forecast
The temperatures in Blois in September are comfortable with low of 12°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Blois during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Blois in September 2026.
If you’re planning to visit Blois in the near future, we highly recommend that you review the 14 day weather forecast for Blois before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 2° | 8 | 20 | 3 | 75 mm | Awful | Blois in January |
| February | 8° / 2° | 7 | 18 | 3 | 73 mm | Awful | Blois in February |
| March | 12° / 4° | 6 | 25 | 0 | 64 mm | Ok | Blois in March |
| April | 16° / 6° | 5 | 24 | 0 | 73 mm | Good | Blois in April |
| May | 18° / 9° | 7 | 24 | 0 | 118 mm | Ok | Blois in May |
| June | 22° / 12° | 7 | 23 | 0 | 124 mm | Ok | Blois in June |
| July | 24° / 14° | 5 | 26 | 0 | 86 mm | Perfect | Blois in July |
| August | 25° / 14° | 4 | 27 | 0 | 61 mm | Perfect | Blois in August |
| September | 22° / 12° | 4 | 26 | 0 | 63 mm | Good | Blois in September |
| October | 17° / 9° | 6 | 25 | 0 | 83 mm | Good | Blois in October |
| November | 11° / 6° | 7 | 23 | 1 | 88 mm | Bad | Blois in November |
| December | 8° / 4° | 8 | 22 | 1 | 94 mm | Bad | Blois in December |