Average annual temperature is 3.6 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -31.1 °C
Number of sunny days: 220 days
Number of rainy days: 104 days
Number of snow days: 41 days
Look at detailed online map of Hekou
* Weather data for Hekou China is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 1.1 | 9.5 | 19.1 | 21.5 | 30.5 | 33.6 | 31.5 | 33.5 | 29.2 | 19.6 | 2.8 | -0.1 |
| Average daytime temperature (°C) | -12.0 | -4.3 | 6.4 | 11.7 | 20.8 | 26.0 | 25.1 | 23.5 | 19.4 | 12.2 | -4.8 | -12.6 |
| Average temperature (°C) | -17.5 | -10.9 | -0.5 | 4.6 | 14.1 | 19.5 | 20.5 | 18.5 | 14.0 | 5.9 | -9.0 | -16.8 |
| Average night temperature (°C) | -21.7 | -16.0 | -5.7 | -1.9 | 7.5 | 13.5 | 16.3 | 14.3 | 9.0 | 1.0 | -12.7 | -20.8 |
| Absolute minimum temperature (°C) | -31.1 | -22.0 | -13.8 | -6.0 | 2.6 | 8.8 | 11.3 | 9.1 | 2.9 | -6.1 | -22.0 | -27.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 15.0 | 14.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 7.2 | 8.7 | 9.9 | 10.9 | 10.8 | 11.4 | 9.4 | 9.1 | 9.4 | 8.6 | 6.2 | 6.3 |
| Precipitation (mm) | 3 | 4 | 4 | 9 | 42 | 74 | 239 | 229 | 53 | 9 | 27 | 4 |
| Sunny days | 22 | 23 | 25 | 20 | 19 | 11 | 7 | 10 | 17 | 24 | 17 | 25 |
| Rainy days | 0 | 1 | 1 | 7 | 12 | 19 | 24 | 21 | 13 | 5 | 1 | 0 |
| Snow days | 9 | 4 | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 12 | 6 |
The best time to visit Hekou during the most sunny months:
Months with the longest average daylight duration in Hekou:
The largest precipitation sum in Hekou is at