Average annual temperature is 3.8 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -37.8 °C
Number of sunny days: 143 days
Number of rainy days: 158 days
Number of snow days: 64 days
Look at detailed online map of Kostroma
* Weather data for Kostroma Russia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 1.5 | 6.9 | 12.9 | 21.5 | 25.2 | 34.7 | 33.5 | 30.7 | 25.2 | 22.3 | 14.6 | 6.2 |
| Average daytime temperature (°C) | -8.7 | -5.3 | 3.2 | 6.4 | 16.3 | 24.9 | 25.8 | 23.5 | 17.1 | 11.3 | 1.1 | -8.6 |
| Average temperature (°C) | -12.0 | -10.2 | -1.8 | 0.6 | 10.0 | 18.4 | 20.0 | 18.1 | 11.7 | 5.9 | -2.5 | -13.0 |
| Average night temperature (°C) | -15.8 | -15.2 | -7.2 | -6.1 | 3.1 | 11.9 | 14.4 | 13.0 | 6.9 | 1.0 | -6.3 | -17.9 |
| Absolute minimum temperature (°C) | -31.1 | -23.1 | -17.0 | -15.3 | -4.0 | 6.9 | 10.0 | 7.8 | -1.4 | -6.5 | -16.4 | -37.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.3 | 9.9 | 11.9 | 13.9 | 15.8 | 16.7 | 16.3 | 14.7 | 12.7 | 10.6 | 8.8 | 7.8 |
| Daylight minimum duration (h) | 7.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 2.9 | 6.2 | 6.9 | 8.5 | 11.3 | 13.0 | 12.5 | 10.0 | 8.4 | 5.8 | 3.5 | 3.1 |
| Precipitation (mm) | 86 | 21 | 38 | 50 | 63 | 53 | 99 | 178 | 88 | 61 | 64 | 66 |
| Sunny days | 6 | 18 | 17 | 14 | 13 | 17 | 10 | 6 | 7 | 12 | 11 | 12 |
| Rainy days | 4 | 1 | 8 | 8 | 18 | 13 | 21 | 25 | 23 | 17 | 12 | 8 |
| Snow days | 21 | 9 | 6 | 8 | 0 | 0 | 0 | 0 | 0 | 2 | 7 | 11 |
The best time to visit Kostroma during the most sunny months:
Months with the longest average daylight duration in Kostroma:
The largest precipitation sum in Kostroma is at