Average annual temperature is 18.2 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 133 days
Number of rainy days: 230 days
Number of snow days: 2 days
Look at detailed online map of Helong
* Weather data for Helong 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) | 23.5 | 19.2 | 25.4 | 29.6 | 33.0 | 32.8 | 35.7 | 36.1 | 34.7 | 28.7 | 27.8 | 25.1 |
| Average daytime temperature (°C) | 12.7 | 12.2 | 18.3 | 22.5 | 26.2 | 29.2 | 32.9 | 32.0 | 30.2 | 23.8 | 18.9 | 12.8 |
| Average temperature (°C) | 7.3 | 8.2 | 13.5 | 17.8 | 22.0 | 25.3 | 28.7 | 27.8 | 25.8 | 19.5 | 13.9 | 7.8 |
| Average night temperature (°C) | 2.1 | 4.8 | 8.9 | 13.6 | 18.2 | 22.1 | 25.1 | 24.1 | 22.2 | 15.8 | 9.9 | 3.3 |
| Absolute minimum temperature (°C) | -4.4 | -2.5 | 5.0 | 7.5 | 11.0 | 19.2 | 23.3 | 18.3 | 18.8 | 11.3 | 4.5 | -4.6 |
| 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 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.8 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| 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) | 6.5 | 3.7 | 5.2 | 6.7 | 7.6 | 7.6 | 10.6 | 9.8 | 7.8 | 5.8 | 6.3 | 6.4 |
| Precipitation (mm) | 9 | 64 | 143 | 262 | 145 | 174 | 123 | 78 | 21 | 21 | 125 | 56 |
| Sunny days | 22 | 9 | 5 | 6 | 6 | 7 | 5 | 3 | 14 | 17 | 21 | 18 |
| Rainy days | 7 | 19 | 26 | 24 | 25 | 23 | 26 | 28 | 16 | 14 | 9 | 13 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Helong during the most sunny months:
The largest precipitation sum in Helong is at