Climate in Rotterdam: average temperature by month
In Rotterdam the warmest month is August, with 22.3 °C on average in the afternoon; the coolest is January, with 6.1 °C.
The average of the weather stations De Bilt (52 km), West Souburg (80 km) and Den Helder (114 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 6.1 °C | 5.8 °C – 6.5 °C |
| February | 7.1 °C | 6.3 °C – 8.2 °C |
| March | 10.1 °C | 8.3 °C – 11.8 °C |
| April | 13.7 °C | 12.0 °C – 15.3 °C |
| May | 17.7 °C | 15.5 °C – 19.4 °C |
| June | 20.7 °C | 19.5 °C – 21.7 °C |
| July | 22.2 °C | 21.6 °C – 22.9 °C |
| August | 22.3 °C | 21.3 °C – 22.8 °C |
| September | 19.4 °C | 17.0 °C – 21.2 °C |
| October | 15.0 °C | 12.7 °C – 16.9 °C |
| November | 9.9 °C | 7.8 °C – 12.5 °C |
| December | 7.1 °C | 6.6 °C – 7.7 °C |