Average annual temperature is 18.2 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -2.4 °C
Number of sunny days: 131 days
Number of rainy days: 233 days
Number of snow days: 1 day
Look at detailed online map of Heilong
* Weather data for Heilong 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) | 16.5 | 19.3 | 23.3 | 32.0 | 30.6 | 33.7 | 35.5 | 35.3 | 36.1 | 26.7 | 23.8 | 18.5 |
| Average daytime temperature (°C) | 10.9 | 14.5 | 18.0 | 23.5 | 26.5 | 27.7 | 31.5 | 32.1 | 29.2 | 22.1 | 18.6 | 12.9 |
| Average temperature (°C) | 6.5 | 10.7 | 13.9 | 18.9 | 22.2 | 23.9 | 27.1 | 27.7 | 25.1 | 18.7 | 14.6 | 9.1 |
| Average night temperature (°C) | 2.2 | 7.5 | 9.8 | 14.4 | 18.6 | 20.5 | 23.3 | 23.8 | 21.6 | 15.7 | 10.9 | 4.9 |
| Absolute minimum temperature (°C) | -2.4 | 4.5 | 5.0 | 8.3 | 14.0 | 16.3 | 18.5 | 20.3 | 18.4 | 10.2 | 5.8 | -0.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.7 | 14.0 | 13.9 | 13.2 | 12.3 | 11.4 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 4.5 | 3.8 | 4.8 | 7.3 | 7.2 | 6.3 | 8.4 | 9.6 | 7.1 | 4.2 | 5.1 | 4.0 |
| Precipitation (mm) | 10 | 28 | 131 | 178 | 124 | 120 | 388 | 202 | 122 | 123 | 55 | 11 |
| Sunny days | 20 | 9 | 8 | 11 | 6 | 11 | 10 | 7 | 12 | 6 | 14 | 17 |
| Rainy days | 10 | 19 | 23 | 19 | 25 | 19 | 21 | 24 | 18 | 25 | 16 | 14 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Heilong during the most sunny months:
The largest precipitation sum in Heilong is at