Average temperature in September is 27 °C
Average daytime temperature is 33.7 °C
Average night temperature is 22.2 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: 20.7 °C
Number of sunny days: 4
Number of rainy days: 26
Number of snow days:
Precipitation sum: 50 mm
* Weather data for Guastatoya Guatemala 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 | 33.7 | 33.9 | 33.3 | 33.7 | 34 | 31.6 | 32.9 | 32.1 | 33 | 33.6 | 32.5 | 33.5 | 32.7 | 34 | 33.5 | 34.2 | 35.2 | 34.7 | 35.6 | 35.2 | 34 | 34.7 | 35.2 | 34.4 | 33.5 | 34 | 34 | 32.8 | 34.1 | 31.7 |
| Apparent max temperature | 37.7 | 36.8 | 36.4 | 36.5 | 36.5 | 36.3 | 36.5 | 35.8 | 35.6 | 37.2 | 35.9 | 36.8 | 36.4 | 37.7 | 37.4 | 36.9 | 38.2 | 36.6 | 37.5 | 38.2 | 36.6 | 36.6 | 38.1 | 36 | 35 | 37.1 | 37.5 | 36.2 | 37.5 | 35.3 |
| Mean temperature | 26.8 | 27.3 | 27 | 26.2 | 26.3 | 25.8 | 27.4 | 26.5 | 26.3 | 27 | 26.4 | 26.8 | 26.5 | 27.3 | 27.2 | 27.3 | 27.4 | 27.4 | 27.6 | 27.8 | 26.9 | 27.4 | 28.2 | 27.6 | 26.5 | 26.8 | 27.2 | 26.6 | 27.5 | 26.7 |
| Apparent mean temperature | 23.9 | 24 | 26.1 | 23.6 | 23.5 | 24.7 | 26.1 | 25.6 | 25.1 | 26.2 | 23.8 | 25.2 | 25 | 26.2 | 26 | 25 | 23.7 | 24.6 | 24.3 | 25.1 | 25.2 | 25.2 | 24.9 | 24.4 | 25.9 | 25 | 26 | 25.1 | 26.7 | 27.2 |
| Minimum temperature | 21 | 21.8 | 23.2 | 21.1 | 20.7 | 21.9 | 22.7 | 23 | 21.9 | 22.7 | 21.7 | 22.4 | 22.1 | 23.2 | 22.9 | 22.1 | 21.3 | 21.7 | 21.4 | 22.5 | 22.2 | 22 | 21.9 | 21.6 | 22.6 | 21.6 | 22.5 | 22.4 | 23.2 | 23.9 |
| Apparent min temperature | 30.2 | 30.1 | 30.2 | 29 | 29.6 | 29.4 | 30.8 | 29.6 | 29.6 | 30.4 | 29.2 | 30 | 29.6 | 30.6 | 30.1 | 30.3 | 29.9 | 29.6 | 30.1 | 29.8 | 29.7 | 30.3 | 30.7 | 30.2 | 29.4 | 29.8 | 30.6 | 29.9 | 30.9 | 30.5 |
| 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) | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 |
| Sunshine duration (h) | 11 | 11.7 | 11.6 | 10.6 | 11.5 | 10.5 | 11.4 | 9.7 | 9.1 | 10.8 | 11.3 | 10.8 | 9.2 | 10.8 | 10.5 | 11.3 | 11.5 | 10.7 | 11.5 | 11.5 | 9.8 | 10.7 | 11.2 | 11 | 8.1 | 10.8 | 11.1 | 10.4 | 9.9 | 9.5 |
| Precipitation (mm) | 1 | 0.3 | 1.6 | 0.3 | 12 | 16.3 | 0.3 | 0.2 | 1.8 | 0.4 | 0.2 | 0 | 1.1 | 0.3 | 0 | 0 | 0.1 | 0.1 | 0 | 0.5 | 1.1 | 1.2 | 0.2 | 1.3 | 1.1 | 1.6 | 0.3 | 0.8 | 0.6 | 4.9 |
| Precipitation hours | 3 | 2 | 2 | 2 | 6 | 6 | 2 | 2 | 3 | 2 | 2 | 0 | 4 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 6 | 9 | 1 | 5 | 4 | 8 | 3 | 7 | 3 | 9 |
| Wind speed (m/s) | 11.2 | 16.2 | 12 | 14.5 | 15.5 | 10.5 | 13 | 13.6 | 12.9 | 12.9 | 15.2 | 15.3 | 15.9 | 14.5 | 14.6 | 15.5 | 16.9 | 18.6 | 13.9 | 15.2 | 15.5 | 15.3 | 13.4 | 11.5 | 9.4 | 14.3 | 12.6 | 14.3 | 15.8 | 10.3 |
In September 2023, the highest daytime temperature in Guastatoya was 35.6°C.
While the minimum temperature at night dropped to 20.7°C.
The average nighttime and daytime temperatures during September in Guastatoya are 22.2°C and 33.7°C respectively.
The precipitation sum in September is about 50 mm.