Average temperature in December is -15.5 °C
Average daytime temperature is -11.3 °C
Average night temperature is -19.3 °C
Absolute maximum temperature: 5.7 °C
Absolute minimum temperature: -28.4 °C
Number of sunny days: 26
Number of rainy days:
Number of snow days: 5
Precipitation sum: 3 mm
* Weather data for Sayn-Ust Mongolia is based on climate observations for 2023 year
| December (°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 | -9.2 | -4.5 | -2.8 | 5.7 | -3.4 | 3.1 | 3.5 | -8.2 | -11.3 | -14.2 | -14.6 | -17.2 | -19.4 | -22.8 | -19.1 | -17.9 | -19.3 | -21.7 | -20.3 | -18.3 | -20.8 | -16.3 | -12.2 | -13.1 | -11.5 | -10.1 | -10 | -6.2 | -6.2 | -6.2 | -6.1 |
| Apparent max temperature | -13.1 | -9.1 | -7.3 | -4.3 | -9.2 | -2.2 | -5.6 | -13.8 | -16.2 | -18.6 | -18.9 | -22.6 | -26.5 | -29.2 | -24.2 | -23 | -25.2 | -27.6 | -25.7 | -23.7 | -25.8 | -21.3 | -17.3 | -17.5 | -15.9 | -14.9 | -14.3 | -10.3 | -10.8 | -11.4 | -10.6 |
| Mean temperature | -13 | -8.3 | -5.5 | -3.3 | -7.1 | -2 | -6.2 | -12.6 | -16.1 | -17.2 | -19 | -20.2 | -23 | -25.5 | -23 | -22.2 | -23.1 | -25 | -24.9 | -22.2 | -22 | -19.2 | -17.3 | -17.3 | -14.9 | -14 | -14.1 | -10.8 | -11.6 | -9.7 | -9.8 |
| Apparent mean temperature | -22.9 | -19.9 | -16 | -15.7 | -16.6 | -12.4 | -19 | -22.8 | -24.5 | -25.8 | -27.1 | -27.9 | -32.4 | -33.2 | -32.9 | -32.2 | -31.6 | -33.1 | -35.1 | -34.2 | -30.2 | -28.4 | -27.3 | -26.9 | -25.1 | -21.9 | -22.6 | -19.9 | -22.2 | -20.4 | -19.2 |
| Minimum temperature | -17.3 | -14.1 | -10.2 | -11.2 | -11.6 | -6.5 | -12.7 | -16.4 | -19.6 | -21 | -22.1 | -22.3 | -26.4 | -27.4 | -26.8 | -25.7 | -25.7 | -26.8 | -28.4 | -27.7 | -24.1 | -22.4 | -20.5 | -21.3 | -19.8 | -16.5 | -17.1 | -14.6 | -15.3 | -14 | -13.8 |
| Apparent min temperature | -18.1 | -13.9 | -11.2 | -10.5 | -12.8 | -7.1 | -13 | -18.6 | -21.1 | -21.9 | -23.8 | -25.4 | -29.4 | -31.2 | -29 | -27.8 | -28.8 | -30.8 | -31.2 | -28.1 | -27.2 | -25 | -22.9 | -21.9 | -20.4 | -19 | -18.9 | -15.5 | -17.4 | -15 | -15.5 |
| December | 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) | 8.8 | 8.7 | 8.7 | 8.7 | 8.7 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 |
| Sunshine duration (h) | 7.2 | 7.4 | 6.2 | 7.2 | 7.1 | 6.5 | 7.2 | 7.3 | 7.2 | 7.2 | 7 | 6.1 | 5.9 | 7.2 | 7.2 | 7.2 | 5.3 | 7.2 | 7.2 | 6.2 | 0 | 6.4 | 7.2 | 7.2 | 7.2 | 7.2 | 7.2 | 5.5 | 7.3 | 0.8 | 7.3 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.5 | 0 | 0 | 0 | 0 | 0.6 | 0 | 0 | 0 | 1.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0.5 | 0 | 0.2 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 2 | 0 |
| Wind speed (m/s) | 13.2 | 16.3 | 21.3 | 46.6 | 17.6 | 20.6 | 59.5 | 20.4 | 11.8 | 13.5 | 10.2 | 12.8 | 21.7 | 16.8 | 17.3 | 17.1 | 17.8 | 17.1 | 19.5 | 16.6 | 16.4 | 20 | 18.9 | 11.6 | 17.9 | 15.5 | 14.2 | 13.4 | 23 | 18.5 | 18.9 |
In December 2023, the highest daytime temperature in Sayn-Ust was 5.7°C.
While the minimum temperature at night dropped to -28.4°C.
The average nighttime and daytime temperatures during December in Sayn-Ust are -19.3°C and -11.3°C respectively.
The precipitation sum in December is about 3 mm.