Click on a day for an hourly weather forecast
The temperatures in Chantilly in May are comfortable with low of 13°C and and high up to 24°C.
You can expect rain for roughly half of the month of May in Chantilly. 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 Chantilly in May 2025.
If you’re planning to visit Chantilly in the near future, we highly recommend that you review the 14 day weather forecast for Chantilly before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -3° | 6 | 18 | 7 | 103 mm | Awful | Chantilly in January |
| February | 7° / -2° | 7 | 15 | 7 | 118 mm | Awful | Chantilly in February |
| March | 12° / 3° | 8 | 19 | 4 | 124 mm | Awful | Chantilly in March |
| April | 18° / 8° | 8 | 22 | 1 | 122 mm | Ok | Chantilly in April |
| May | 24° / 13° | 9 | 22 | 0 | 158 mm | Good | Chantilly in May |
| June | 29° / 18° | 6 | 24 | 0 | 128 mm | Good | Chantilly in June |
| July | 32° / 20° | 6 | 25 | 0 | 139 mm | Good | Chantilly in July |
| August | 31° / 20° | 7 | 25 | 0 | 139 mm | Ok | Chantilly in August |
| September | 27° / 16° | 6 | 24 | 0 | 120 mm | Perfect | Chantilly in September |
| October | 20° / 11° | 5 | 26 | 0 | 141 mm | Good | Chantilly in October |
| November | 12° / 4° | 5 | 24 | 1 | 102 mm | Ok | Chantilly in November |
| December | 8° / 1° | 6 | 21 | 4 | 133 mm | Bad | Chantilly in December |