Average annual temperature is 26.8 °C
Absolute maximum temperature: 42.5 °C
Absolute minimum temperature: 10.7 °C
Number of sunny days: 172 days
Number of rainy days: 193 days
Look at detailed online map of Nong Khai
* Weather data for Nong Khai Thailand is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.2 | 35.8 | 39.6 | 39.5 | 42.5 | 34.6 | 34.2 | 33.5 | 32.1 | 32.6 | 34.1 | 33.0 |
| Average daytime temperature (°C) | 26.9 | 31.2 | 34.1 | 36.6 | 34.9 | 31.3 | 31.4 | 30.3 | 29.9 | 30.7 | 31.0 | 29.3 |
| Average temperature (°C) | 21.3 | 25.4 | 28.0 | 31.0 | 30.0 | 27.5 | 27.7 | 26.9 | 26.4 | 26.8 | 26.0 | 24.0 |
| Average night temperature (°C) | 15.5 | 19.4 | 22.0 | 25.8 | 25.8 | 24.5 | 24.5 | 24.2 | 23.7 | 23.0 | 21.3 | 19.0 |
| Absolute minimum temperature (°C) | 10.7 | 13.6 | 17.3 | 23.3 | 23.2 | 23.5 | 22.9 | 23.2 | 22.9 | 21.1 | 16.8 | 12.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 10.2 | 10.3 | 10.8 | 10.1 | 8.4 | 8.8 | 6.0 | 6.9 | 9.5 | 10.1 | 9.9 |
| Precipitation (mm) | 1 | 5 | 14 | 37 | 191 | 504 | 474 | 372 | 588 | 230 | 8 | 1 |
| Sunny days | 28 | 23 | 27 | 19 | 9 | 0 | 1 | 0 | 0 | 10 | 25 | 30 |
| Rainy days | 3 | 5 | 4 | 11 | 22 | 30 | 30 | 31 | 30 | 21 | 5 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nong Khai is at