Climate in St-Malo: average temperature by month
In St-Malo the warmest month is August, with 21.7 °C on average in the afternoon; the coolest is January, with 9.6 °C.
The average of the weather stations Pte De La Hague (120 km), Nantes-Bouguenais (169 km) and Belle Ile - Le Talut (175 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 9.6 °C | 9.3 °C – 9.9 °C |
| February | 10.0 °C | 9.6 °C – 10.4 °C |
| March | 11.7 °C | 10.4 °C – 12.7 °C |
| April | 13.9 °C | 12.7 °C – 14.9 °C |
| May | 16.7 °C | 15.0 °C – 18.2 °C |
| June | 19.5 °C | 18.3 °C – 20.7 °C |
| July | 21.5 °C | 20.7 °C – 21.9 °C |
| August | 21.7 °C | 21.3 °C – 22.0 °C |
| September | 20.0 °C | 18.3 °C – 21.2 °C |
| October | 16.8 °C | 14.9 °C – 18.2 °C |
| November | 12.9 °C | 11.4 °C – 14.7 °C |
| December | 10.6 °C | 10.0 °C – 11.3 °C |