Climate in Cergy-Pontoise: average temperature by month
In Cergy-Pontoise the warmest month is July, with 25.8 °C on average in the afternoon; the coolest is January, with 7.3 °C.
Measured at the weather station Le Bourget, 27 km away.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 7.3 °C | 7.0 °C – 7.7 °C |
| February | 9.1 °C | 7.8 °C – 10.3 °C |
| March | 12.7 °C | 10.5 °C – 14.1 °C |
| April | 16.1 °C | 14.4 °C – 17.4 °C |
| May | 20.0 °C | 17.5 °C – 21.8 °C |
| June | 23.5 °C | 22.0 °C – 25.2 °C |
| July | 25.8 °C | 24.9 °C – 26.4 °C |
| August | 25.6 °C | 24.1 °C – 26.7 °C |
| September | 21.9 °C | 18.9 °C – 24.0 °C |
| October | 16.9 °C | 14.1 °C – 18.8 °C |
| November | 11.1 °C | 8.9 °C – 13.9 °C |
| December | 8.3 °C | 7.7 °C – 8.8 °C |