Ostashkov Climate: Weather by Month and Best Time to Visit
Best months for Ostashkov: July, August, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -4°C | -9°C | 45 mm | 12 | – | – | 3.5 |
| February | -4°C | -9°C | 34 mm | 9 | – | – | 3.8 |
| March | 1°C | -6°C | 36 mm | 10 | – | – | 4.0 |
| April | 9°C | 0°C | 39 mm | 9 | – | – | 5.6 |
| May | 16°C | 7°C | 68 mm | 12 | – | – | 6.4 |
| June | 19°C | 11°C | 84 mm | 14 | – | – | 6.8 |
| July | 22°C | 14°C | 92 mm | 14 | – | – | 7.1 |
| August | 20°C | 12°C | 85 mm | 13 | – | – | 7.0 |
| September | 14°C | 7°C | 63 mm | 12 | – | – | 6.3 |
| October | 7°C | 2°C | 69 mm | 13 | – | – | 5.0 |
| November | 1°C | -3°C | 52 mm | 12 | – | – | 3.8 |
| December | -3°C | -7°C | 47 mm | 12 | – | – | 3.5 |