Average annual temperature is 18.1 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 178 days
Number of rainy days: 184 days
Number of snow days: 3 days
Look at detailed online map of Tonghaikou
* Weather data for Tonghaikou 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) | 21.4 | 18.5 | 26.5 | 31.2 | 33.3 | 34.7 | 34.8 | 35.8 | 35.2 | 28.4 | 28.8 | 23.1 |
| Average daytime temperature (°C) | 12.1 | 11.9 | 18.9 | 23.3 | 27.1 | 30.3 | 31.9 | 32.5 | 28.7 | 24.3 | 18.6 | 11.3 |
| Average temperature (°C) | 6.5 | 7.9 | 13.9 | 18.4 | 22.5 | 26.0 | 28.7 | 28.4 | 25.0 | 19.5 | 13.3 | 6.6 |
| Average night temperature (°C) | 0.8 | 3.6 | 9.2 | 14.1 | 18.7 | 22.5 | 26.1 | 24.7 | 21.8 | 15.6 | 8.6 | 2.2 |
| Absolute minimum temperature (°C) | -4.3 | -2.0 | 3.5 | 6.0 | 12.9 | 17.9 | 22.3 | 19.5 | 18.1 | 10.4 | -0.7 | -5.5 |
| 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) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 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) | 6.2 | 4.3 | 5.9 | 7.3 | 7.1 | 8.3 | 8.9 | 10.3 | 6.4 | 6.3 | 6.8 | 6.2 |
| Precipitation (mm) | 23 | 48 | 82 | 218 | 239 | 213 | 204 | 76 | 85 | 20 | 58 | 64 |
| Sunny days | 25 | 15 | 15 | 11 | 10 | 8 | 9 | 17 | 12 | 16 | 20 | 20 |
| Rainy days | 5 | 13 | 16 | 19 | 21 | 22 | 22 | 14 | 18 | 15 | 10 | 9 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Tonghaikou during the most sunny months:
The largest precipitation sum in Tonghaikou is at