Climate in Olsztyn: average temperature by month
In Olsztyn the warmest month is August, with 22.7 °C on average in the afternoon; the coolest is January, with 0.4 °C.
The average of the weather stations Elblag-Milejewo (81 km) and Kaliningrad (104 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 0.4 °C | 0.1 °C – 1.4 °C |
| February | 1.7 °C | 0.6 °C – 3.7 °C |
| March | 6.5 °C | 4.0 °C – 9.5 °C |
| April | 12.3 °C | 9.8 °C – 15.0 °C |
| May | 17.5 °C | 15.1 °C – 20.0 °C |
| June | 21.3 °C | 20.1 °C – 22.3 °C |
| July | 22.7 °C | 22.3 °C – 23.4 °C |
| August | 22.7 °C | 21.0 °C – 23.5 °C |
| September | 18.5 °C | 15.6 °C – 20.9 °C |
| October | 12.4 °C | 9.7 °C – 15.4 °C |
| November | 6.2 °C | 3.4 °C – 9.5 °C |
| December | 2.7 °C | 1.6 °C – 3.3 °C |