Average temperature in September is 16.1 °C
Average daytime temperature is 21.7 °C
Average night temperature is 11.5 °C
Absolute maximum temperature: 23.4 °C
Absolute minimum temperature: 9.7 °C
Number of sunny days: 1
Number of rainy days: 29
Number of snow days:
Precipitation sum: 211 mm
* Weather data for Ciudad Vieja 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 | 23.4 | 22.1 | 22 | 21.5 | 20.4 | 20.6 | 23.3 | 23.3 | 19.9 | 21.1 | 21.8 | 22.3 | 21.5 | 21 | 21.2 | 22.6 | 22.2 | 22.2 | 22.7 | 23.1 | 21.2 | 20.8 | 22.9 | 21.3 | 19.8 | 21.7 | 22.2 | 20.7 | 21.7 | 20.7 |
| Apparent max temperature | 25.4 | 23.3 | 23.9 | 23.7 | 21.6 | 22.8 | 25.2 | 25.7 | 21.1 | 22.5 | 23.3 | 24.1 | 22.8 | 24.2 | 23 | 23.8 | 24.3 | 23.2 | 23.5 | 25 | 23.5 | 22 | 24.5 | 23.1 | 21.9 | 23.7 | 25 | 22.7 | 23.1 | 22.3 |
| Mean temperature | 17.1 | 17.2 | 16.2 | 15.2 | 15.7 | 15.4 | 16.4 | 16.3 | 15.7 | 16.1 | 16 | 16.1 | 16.5 | 15.9 | 16.3 | 15.9 | 16 | 16.2 | 15.8 | 15.8 | 15.8 | 16.3 | 16.3 | 16.3 | 15.9 | 16.1 | 15.9 | 16.1 | 16.1 | 16.2 |
| Apparent mean temperature | 10.5 | 12 | 11.2 | 9.1 | 11.3 | 9.7 | 10.4 | 10 | 11.5 | 10 | 10.2 | 10 | 12.2 | 11.9 | 11.5 | 9.4 | 9.3 | 12.2 | 8.2 | 9 | 11 | 12.2 | 9.6 | 10.2 | 13 | 11.6 | 10.7 | 11.6 | 11.6 | 12.3 |
| Minimum temperature | 11.7 | 12.5 | 11.8 | 10.5 | 11.7 | 10.7 | 11.2 | 11 | 12.1 | 11.1 | 11.1 | 11 | 12.5 | 12.1 | 12.2 | 10.6 | 10.8 | 12.8 | 9.7 | 10.2 | 11.6 | 12.5 | 10.8 | 11 | 12.9 | 11.7 | 11.6 | 12.2 | 12.1 | 12.7 |
| Apparent min temperature | 17.2 | 17.4 | 16.5 | 15.4 | 16.2 | 15.8 | 16.8 | 16.4 | 16 | 16.5 | 16.1 | 16.4 | 17.2 | 16.5 | 16.9 | 15.8 | 16.2 | 16.2 | 15.6 | 15.7 | 16.1 | 16.6 | 16.2 | 16.8 | 16.7 | 16.7 | 16.4 | 16.8 | 16.7 | 17 |
| 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) | 10.8 | 11.2 | 11.7 | 11.6 | 9.7 | 9.5 | 11.4 | 11.2 | 8.1 | 9 | 7.8 | 10.2 | 9.3 | 8.3 | 10.8 | 11.5 | 11.5 | 8.6 | 10.4 | 9.7 | 9.2 | 10.8 | 11.4 | 11.4 | 8 | 9.7 | 8.9 | 7.6 | 9.6 | 6.8 |
| Precipitation (mm) | 2.2 | 2.5 | 11.9 | 15.5 | 14.9 | 4 | 0 | 4.2 | 12.6 | 8.8 | 2.4 | 3.6 | 6.7 | 14.6 | 15.7 | 3.7 | 5 | 1.7 | 0.5 | 8.9 | 9.2 | 8.1 | 2.1 | 10.5 | 4 | 6.7 | 4.6 | 10.1 | 10.7 | 6 |
| Precipitation hours | 6 | 11 | 9 | 8 | 13 | 11 | 0 | 5 | 9 | 10 | 9 | 9 | 11 | 10 | 10 | 8 | 7 | 8 | 4 | 4 | 7 | 11 | 6 | 10 | 17 | 9 | 7 | 11 | 8 | 16 |
| Wind speed (m/s) | 13.1 | 11.5 | 11.5 | 9.5 | 9.3 | 7.9 | 8.8 | 10 | 8.3 | 8.7 | 9.8 | 8.4 | 9.6 | 7.5 | 8 | 11.4 | 10.5 | 11.3 | 10 | 8.8 | 11 | 8.7 | 10.1 | 7.3 | 8.9 | 7.8 | 7.9 | 7.9 | 8.6 | 10.8 |
In September 2023, the highest daytime temperature in Ciudad Vieja was 23.4°C.
While the minimum temperature at night dropped to 9.7°C.
The average nighttime and daytime temperatures during September in Ciudad Vieja are 11.5°C and 21.7°C respectively.
The precipitation sum in September is about 211 mm.