Chantilly in August
7.3out of 10
Possible, with caveats
Warm and comfortable: highs around 30°C. Frequent rain: about 11 rainy days.
30°CAvg high
20°CAvg low
11Rainy days (84 mm)
13:31 hDaylight
06:28Sunrise · 19:59 Sunset
Why this score
- Warm and comfortable: highs around 30°C
- Frequent rain: about 11 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in August varies a lot between years (±3.5 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 6°C | -2°C | 78 mm | 9 | – | – | 5.0 |
| February | 8°C | -1°C | 71 mm | 8 | – | – | 5.5 |
| March | 13°C | 3°C | 96 mm | 10 | – | – | 6.1 |
| April | 19°C | 8°C | 87 mm | 11 | – | – | 7.2 |
| May | 24°C | 14°C | 97 mm | 11 | – | – | 7.5 |
| June | 29°C | 18°C | 87 mm | 12 | – | – | 7.5 |
| July | 31°C | 21°C | 98 mm | 12 | – | – | 6.8 |
| August | 30°C | 20°C | 84 mm | 11 | – | – | 7.3 |
| September | 26°C | 16°C | 110 mm | 10 | – | – | 7.7 |
| October | 20°C | 10°C | 86 mm | 8 | – | – | 7.7 |
| November | 13°C | 4°C | 76 mm | 8 | – | – | 6.7 |
| December | 8°C | 0°C | 88 mm | 9 | – | – | 5.4 |
Frequently asked questions
How hot is Chantilly in August?
Daytime highs average 30°C and nights about 20°C.
When is the best time to visit Chantilly?
The best months are September, October, May, June.