Average temperature in September is 13.4 °C
Average daytime temperature is 18.4 °C
Average night temperature is 9.6 °C
Absolute maximum temperature: 19.8 °C
Absolute minimum temperature: 7.5 °C
Number of sunny days:
Number of rainy days: 30
Number of snow days:
Precipitation sum: 515 mm
* Weather data for San Juan Atitán 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 | 19.7 | 19.6 | 19.3 | 18.4 | 19.1 | 16.8 | 18.1 | 18.6 | 16.7 | 16.3 | 18.3 | 18.7 | 16.9 | 18.1 | 18.9 | 18.7 | 19.8 | 19.7 | 18.9 | 19.2 | 19 | 18.3 | 18.5 | 18.1 | 18.2 | 18.5 | 18.1 | 18.5 | 18.1 | 17.4 |
| Apparent max temperature | 22.2 | 20.4 | 22.4 | 19.7 | 20.3 | 16.2 | 19.8 | 20.9 | 17.7 | 17 | 20.1 | 21 | 18.3 | 20.2 | 21.3 | 20.5 | 21 | 21.5 | 20.3 | 20.6 | 20.7 | 19.8 | 19.8 | 20.2 | 19 | 19.4 | 19.3 | 19.8 | 19.3 | 18.3 |
| Mean temperature | 14.3 | 14 | 12.9 | 12.6 | 12.8 | 12.5 | 13.1 | 13.2 | 12.3 | 12.6 | 12.7 | 13.7 | 13.8 | 13.2 | 13.4 | 13.3 | 13.8 | 13.3 | 13 | 13.2 | 13.8 | 13.9 | 13.9 | 13.8 | 13.5 | 13.2 | 13.8 | 14 | 13.7 | 13.5 |
| Apparent mean temperature | 9.2 | 8.1 | 6.9 | 7 | 6.6 | 7.6 | 7.6 | 7.8 | 7.3 | 8.3 | 7.1 | 8.3 | 11.7 | 8.3 | 8 | 6.3 | 6.9 | 8.2 | 5.2 | 7.2 | 9.7 | 9.8 | 8.5 | 8.3 | 8.9 | 7.6 | 10.6 | 11.1 | 10.2 | 10.9 |
| Minimum temperature | 10.6 | 9.6 | 8.3 | 8.6 | 8.3 | 9.3 | 9.3 | 9.6 | 9 | 9.5 | 8.6 | 9.2 | 11.8 | 9.9 | 9.6 | 8.3 | 8.6 | 9.4 | 7.5 | 8.8 | 10.4 | 10.3 | 9.9 | 10.1 | 9.9 | 8.8 | 10.9 | 11.8 | 11.1 | 11.2 |
| Apparent min temperature | 14.3 | 13.4 | 12.6 | 12.2 | 12.3 | 11.7 | 12.7 | 13 | 11.8 | 12.4 | 12.4 | 14 | 14.3 | 13.1 | 13.5 | 13.2 | 13.2 | 12.9 | 12.4 | 12.8 | 14 | 14.1 | 13.8 | 13.8 | 13.3 | 13 | 14 | 14.2 | 13.9 | 13.8 |
| 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 | 12.4 | 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 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 |
| Sunshine duration (h) | 8.3 | 11.7 | 11.7 | 9.2 | 9.8 | 9.2 | 8.2 | 8.6 | 4.4 | 8.8 | 9.9 | 10.7 | 6.6 | 7.3 | 10.7 | 11.4 | 11.3 | 11.5 | 11.5 | 11.5 | 10.1 | 11.4 | 10.9 | 11.4 | 11.2 | 10.8 | 9.4 | 7.7 | 6.7 | 7.8 |
| Precipitation (mm) | 18 | 2.8 | 20.7 | 25.1 | 8.6 | 3 | 24.2 | 21.8 | 32 | 34.9 | 22.3 | 3.9 | 27.3 | 25 | 19.8 | 10.5 | 0.5 | 9.5 | 3.8 | 11.1 | 28.5 | 20.2 | 5.4 | 7.4 | 2.8 | 13.1 | 28.4 | 22.4 | 25.7 | 36.6 |
| Precipitation hours | 11 | 6 | 9 | 10 | 10 | 11 | 8 | 11 | 10 | 16 | 9 | 12 | 15 | 12 | 10 | 10 | 4 | 11 | 7 | 10 | 13 | 11 | 11 | 11 | 9 | 10 | 14 | 13 | 15 | 12 |
| Wind speed (m/s) | 9 | 12.6 | 8 | 7.9 | 11.9 | 9.7 | 7.5 | 7.6 | 6.1 | 6.9 | 8.7 | 7.9 | 7.5 | 7.2 | 6.9 | 8.6 | 9 | 8.4 | 9.3 | 7.6 | 7.3 | 8.5 | 7.4 | 9.9 | 9.4 | 9.8 | 8.4 | 8 | 8.2 | 7.9 |
In September 2023, the highest daytime temperature in San Juan Atitán was 19.8°C.
While the minimum temperature at night dropped to 7.5°C.
The average nighttime and daytime temperatures during September in San Juan Atitán are 9.6°C and 18.4°C respectively.
The precipitation sum in September is about 515 mm.