Average temperature in September is 9.3 °C
Average daytime temperature is 15.7 °C
Average night temperature is 2.8 °C
Absolute maximum temperature: 27.7 °C
Absolute minimum temperature: -4.3 °C
Number of sunny days: 15
Number of rainy days: 14
Number of snow days: 1
Precipitation sum: 34 mm
* Weather data for Bayanhongor Mongolia is based on climate observations for 2023 year
| September (°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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 21.7 | 25.2 | 24.5 | 25.2 | 27.7 | 24.1 | 18.2 | 19.6 | 21 | 15.5 | 15.3 | 20 | 22.5 | 14.8 | 14 | 13.2 | 10.7 | 10.5 | 11.5 | 14.1 | 14.9 | 10.6 | 13 | 12.6 | 7.3 | 8.2 | 10.1 | 6.5 | 8.1 | 10.6 |
| Apparent max temperature | 20.1 | 21.8 | 22.1 | 22.4 | 21.8 | 19.5 | 14.3 | 13.9 | 16.5 | 10.8 | 12.1 | 15.5 | 18.4 | 11.2 | 11 | 8.5 | 8.1 | 6.8 | 7.7 | 9.8 | 12.3 | 7.7 | 8.4 | 8.9 | 1.1 | 0.8 | 5.5 | 1.1 | 4.2 | 6.4 |
| Mean temperature | 15.6 | 18 | 17.9 | 18.7 | 21 | 13.9 | 11.6 | 15 | 12.9 | 8.5 | 10.2 | 14.4 | 15.5 | 9 | 7.8 | 6.9 | 4.9 | 4.2 | 5.8 | 7.8 | 9.2 | 6.6 | 6.1 | 7 | 1.7 | 1.5 | 3.5 | 0.3 | 1.4 | 3.4 |
| Apparent mean temperature | 6 | 7.2 | 6.7 | 8.6 | 10.8 | 2.5 | 3 | 5.3 | -0.1 | -2.3 | 0 | 4.1 | 5.7 | -1.6 | -1.4 | -3.4 | -4.4 | -4.6 | -4.1 | -3.9 | -2.9 | 0 | -4.5 | -3.2 | -8.6 | -7.4 | -6.9 | -8.7 | -8.2 | -7.5 |
| Minimum temperature | 8.6 | 10.9 | 9.2 | 11.6 | 14.1 | 5.1 | 6.1 | 8.2 | 3.7 | 0.9 | 3.4 | 7.8 | 9.1 | 2 | 1.5 | 0.5 | -0.7 | -0.8 | -0.3 | 0.7 | 2.1 | 2.6 | -0.9 | 0.4 | -4.3 | -2.9 | -3.4 | -4.2 | -3.7 | -2.9 |
| Apparent min temperature | 13.4 | 14.6 | 15.2 | 15.8 | 16.9 | 11.8 | 8.5 | 11.5 | 8.8 | 4.4 | 6.9 | 10.9 | 12.3 | 5.5 | 4.6 | 3.1 | 1.4 | 0.8 | 2.4 | 3.9 | 5.5 | 3.9 | 2.3 | 3.9 | -3.5 | -3.6 | -0.2 | -4.5 | -2.7 | -0.7 |
| September | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13 | 13 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.1 | 12.1 | 12 | 12 | 11.9 | 11.9 | 11.8 | 11.8 |
| Sunshine duration (h) | 11.9 | 12 | 11.9 | 11.9 | 11.8 | 3.2 | 11.6 | 11.8 | 9.4 | 11.7 | 11.7 | 11 | 10.3 | 11 | 11.6 | 11.2 | 7.5 | 7.3 | 11.3 | 10.9 | 9.9 | 0.5 | 11 | 10.3 | 6.4 | 10.8 | 9 | 10.6 | 10.7 | 10.3 |
| Precipitation (mm) | 0.2 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 3.2 | 1.7 | 0.7 | 1.9 | 0.5 | 0.5 | 0.1 | 1.9 | 0 | 7.6 | 0 | 1.4 | 1.2 | 0 | 4.9 | 0.1 | 0 | 0 |
| Precipitation hours | 1 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 3 | 4 | 6 | 4 | 4 | 1 | 4 | 0 | 15 | 0 | 5 | 4 | 0 | 6 | 1 | 0 | 0 |
| Wind speed (m/s) | 12.8 | 19.1 | 14.9 | 13.9 | 25.7 | 22 | 16.2 | 27.4 | 30.7 | 23.7 | 12 | 18.7 | 22.2 | 24.6 | 14.7 | 20.3 | 19.5 | 16.8 | 12.3 | 15 | 17 | 16.7 | 22.1 | 15.1 | 27 | 28.5 | 18.9 | 21.9 | 12.1 | 10.5 |
In September 2023, the highest daytime temperature in Bayanhongor was 27.7°C.
While the minimum temperature at night dropped to -4.3°C.
The average nighttime and daytime temperatures during September in Bayanhongor are 2.8°C and 15.7°C respectively.
The precipitation sum in September is about 34 mm.