Average temperature in December is 7.4 °C
Average daytime temperature is 12.6 °C
Average night temperature is 2.8 °C
Absolute maximum temperature: 16 °C
Absolute minimum temperature: -1.9 °C
Number of sunny days: 26
Number of rainy days: 5
Number of snow days:
Precipitation sum: 14 mm
* Weather data for Karaj Iran is based on climate observations for 2023 year
| Dicembre (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 14.6 | 14.7 | 15.3 | 14.9 | 15.5 | 14.3 | 14.6 | 14.8 | 14 | 16 | 15.2 | 12.5 | 12.2 | 7.5 | 10.2 | 13.2 | 14.5 | 9.9 | 9.9 | 9.4 | 9.8 | 10.8 | 10.3 | 13.1 | 10.8 | 12 | 13.8 | 11.9 | 10.6 | 11.4 | 12.3 |
| Apparent max temperature | 11 | 11.4 | 11.8 | 11.3 | 10.8 | 9.6 | 10.4 | 10.7 | 9.6 | 11.5 | 11.7 | 9.2 | 8 | 4.4 | 5.4 | 9.8 | 11.6 | 5.4 | 7.2 | 5.9 | 6.7 | 7.2 | 8 | 10.5 | 6.5 | 6.9 | 9 | 7.7 | 7.3 | 8.5 | 9.4 |
| Mean temperature | 9.2 | 8.7 | 11.2 | 11.5 | 9 | 9.1 | 9.2 | 8.5 | 8.2 | 10.2 | 9.1 | 8.2 | 7.7 | 5 | 4.2 | 7.2 | 9.3 | 4.9 | 5 | 5.2 | 4.3 | 5.8 | 5.9 | 7.2 | 7.4 | 7.7 | 7.5 | 6.2 | 4.5 | 5.1 | 6.2 |
| Apparent mean temperature | 0.2 | -0.5 | 4.7 | 4.5 | -1.7 | -2.4 | 1.3 | 0.7 | 1.4 | 1.4 | 0.9 | 0.4 | 1.2 | -2.1 | -5.6 | -3.1 | -0.4 | -3.3 | -0.7 | -2.5 | -4 | -3.4 | -1.2 | -1.1 | 0.6 | -0.3 | -1.6 | -2.5 | -3.8 | -3 | -3.3 |
| Minimum temperature | 4 | 3.2 | 8.5 | 8.9 | 3.5 | 1.6 | 5.4 | 4.1 | 4.6 | 4.4 | 4.4 | 4 | 4.7 | 1.2 | -1.9 | 1.4 | 3.6 | 0.1 | 2.3 | 1 | -0.3 | 0.3 | 2.4 | 2.5 | 4.2 | 4 | 2.2 | 1.1 | -0.3 | 1 | 0.8 |
| Apparent min temperature | 5.7 | 5.2 | 7.4 | 7.6 | 4.8 | 5.1 | 5.3 | 5.1 | 4.7 | 6.5 | 5.2 | 5 | 4.5 | 2 | 0.4 | 3.3 | 5.8 | 1.1 | 2 | 1.9 | 0.8 | 2.6 | 3 | 4.1 | 3.3 | 3.1 | 3.7 | 2.6 | 1.1 | 1.6 | 2.9 |
| Dicembre | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 |
| Sunshine duration (h) | 7.2 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 5.9 | 8.9 | 8.4 | 8.8 | 7.8 | 7.7 | 4.9 | 2.3 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 | 6.2 | 8.8 | 5.8 | 8.8 | 8.8 | 8.8 | 3.6 | 8.8 | 8.8 | 8.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 2.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.9 | 7.8 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 8.6 | 6.9 | 6.2 | 7.2 | 12.5 | 10.2 | 16.2 | 12 | 12.9 | 15.6 | 14 | 7.6 | 11.7 | 16.9 | 16 | 9.1 | 7.1 | 14.8 | 6.9 | 7 | 8 | 9.4 | 10.2 | 11.6 | 19 | 20 | 16.8 | 13.6 | 7.7 | 6.7 | 6.6 |
In December 2023, the highest daytime temperature in Karaj was 16°C.
While the minimum temperature at night dropped to -1.9°C.
The average nighttime and daytime temperatures during December in Karaj are 2.8°C and 12.6°C respectively.
The precipitation sum in December is about 14 mm.