Kostroma Climate: Weather by Month and Best Time to Visit
Best months for Kostroma: July, June, August.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -6°C | -12°C | 41 mm | 11 | – | – | 3.6 |
| February | -5°C | -12°C | 31 mm | 9 | – | – | 3.9 |
| March | 1°C | -7°C | 35 mm | 9 | – | – | 3.9 |
| April | 9°C | 0°C | 40 mm | 9 | – | – | 5.7 |
| May | 17°C | 6°C | 58 mm | 11 | – | – | 6.8 |
| June | 21°C | 10°C | 75 mm | 12 | – | – | 7.3 |
| July | 23°C | 13°C | 73 mm | 13 | – | – | 7.4 |
| August | 21°C | 11°C | 70 mm | 12 | – | – | 7.3 |
| September | 15°C | 6°C | 65 mm | 12 | – | – | 6.4 |
| October | 7°C | 1°C | 65 mm | 12 | – | – | 5.0 |
| November | 0°C | -5°C | 50 mm | 11 | – | – | 3.7 |
| December | -4°C | -9°C | 42 mm | 11 | – | – | 3.7 |