Average annual temperature is 17.9 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: -3.3 °C
Number of sunny days: 231 days
Number of rainy days: 134 days
Look at detailed online map of Najjār
* Weather data for Najjār Iran is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 17.7 | 20.5 | 31.5 | 30.4 | 35.0 | 33.1 | 36.6 | 37.3 | 34.1 | 29.7 | 27.0 | 23.7 |
| Average daytime temperature (°C) | 11.7 | 14.2 | 19.7 | 23.1 | 25.8 | 29.4 | 32.0 | 33.6 | 28.6 | 24.3 | 22.6 | 17.2 |
| Average temperature (°C) | 5.4 | 7.8 | 13.7 | 16.8 | 20.7 | 24.9 | 27.3 | 28.2 | 23.7 | 19.1 | 16.1 | 10.9 |
| Average night temperature (°C) | 0.4 | 2.8 | 8.6 | 11.0 | 15.6 | 20.2 | 22.9 | 23.1 | 19.3 | 14.6 | 11.0 | 5.7 |
| Absolute minimum temperature (°C) | -3.3 | -1.2 | 3.9 | 3.6 | 8.8 | 17.2 | 20.2 | 19.2 | 16.3 | 11.7 | 4.9 | 1.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.2 | 6.3 | 9.7 | 8.9 | 10.0 | 9.8 | 9.6 | 9.5 | 8.0 | 7.8 | 6.9 |
| Precipitation (mm) | 19 | 73 | 53 | 20 | 72 | 45 | 16 | 19 | 43 | 196 | 166 | 61 |
| Sunny days | 23 | 15 | 14 | 25 | 17 | 19 | 20 | 23 | 19 | 17 | 18 | 21 |
| Rainy days | 8 | 13 | 17 | 5 | 14 | 11 | 11 | 8 | 11 | 14 | 12 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Najjār is at