Average annual temperature is 18.2 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -1.4 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Heilongwan
* Weather data for Heilongwan 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) | 17.5 | 18.1 | 23.9 | 31.7 | 30.3 | 33.1 | 34.9 | 34.5 | 34.4 | 27.3 | 25.9 | 20.2 |
| Average daytime temperature (°C) | 10.7 | 13.8 | 17.7 | 23.6 | 25.6 | 27.3 | 31.0 | 31.3 | 28.6 | 22.3 | 18.6 | 12.9 |
| Average temperature (°C) | 7.0 | 10.0 | 13.9 | 19.3 | 21.9 | 24.1 | 27.1 | 27.3 | 24.9 | 18.9 | 14.7 | 9.2 |
| Average night temperature (°C) | 2.9 | 6.4 | 9.9 | 15.0 | 18.6 | 21.0 | 23.5 | 23.8 | 21.5 | 15.8 | 11.2 | 5.3 |
| Absolute minimum temperature (°C) | -1.4 | 3.6 | 7.1 | 9.7 | 13.1 | 18.3 | 19.0 | 20.2 | 18.3 | 11.8 | 7.1 | -0.6 |
| 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 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.7 | 10.2 |
| 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) | 4.4 | 3.8 | 5.0 | 7.3 | 6.5 | 5.7 | 8.4 | 9.7 | 7.0 | 4.9 | 5.1 | 4.6 |
| Precipitation (mm) | 29 | 52 | 124 | 162 | 246 | 273 | 246 | 201 | 281 | 149 | 94 | 63 |
| Sunny days | 19 | 9 | 5 | 12 | 6 | 6 | 7 | 5 | 11 | 7 | 13 | 16 |
| Rainy days | 12 | 19 | 26 | 18 | 25 | 24 | 24 | 26 | 19 | 24 | 17 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Heilongwan during the most sunny months:
The largest precipitation sum in Heilongwan is at