Average temperature in December is 25.3 °C
Average daytime temperature is 31.6 °C
Average night temperature is 19.8 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: 16.1 °C
Number of sunny days: 19
Number of rainy days: 12
Number of snow days:
Precipitation sum: 6 mm
* Weather data for San Sebastián Guatemala 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 | 31.4 | 31.8 | 31.3 | 31.7 | 31 | 29.9 | 31 | 32.2 | 32.4 | 32.9 | 31.2 | 32.5 | 31.7 | 32.3 | 31.7 | 31.7 | 31 | 30.7 | 30.9 | 30.8 | 30.9 | 31.7 | 32.4 | 32.4 | 32.3 | 32.2 | 32 | 31.3 | 31.2 | 31.8 | 31.3 |
| Apparent max temperature | 35.3 | 36.2 | 35.9 | 36.1 | 35.4 | 34.1 | 34.1 | 35.7 | 36.1 | 36.1 | 34.6 | 36.3 | 36.3 | 36.2 | 35.3 | 36 | 34.8 | 33.6 | 32.6 | 32.8 | 32.6 | 32.7 | 34.5 | 35.2 | 34.4 | 35.2 | 34.6 | 33 | 35 | 35.2 | 34.5 |
| Mean temperature | 26 | 26.1 | 25.6 | 25.7 | 26.3 | 24.9 | 25.3 | 25.7 | 25.6 | 26 | 26.1 | 26.4 | 26.7 | 26.8 | 25.7 | 26.4 | 25.8 | 24.2 | 23 | 23.5 | 23.1 | 23.2 | 25.2 | 25.7 | 24.8 | 25.6 | 25.1 | 24.8 | 25.3 | 24.6 | 25 |
| Apparent mean temperature | 23.2 | 21.4 | 20.5 | 21.3 | 25.4 | 20.3 | 21.8 | 21.6 | 20.2 | 20.1 | 22.6 | 22.5 | 26.2 | 23.3 | 21.5 | 24.6 | 25.2 | 20.5 | 14.1 | 15.5 | 14.1 | 14.9 | 19.6 | 20.8 | 19.7 | 19.3 | 18.9 | 18.1 | 22.3 | 18.5 | 19.3 |
| Minimum temperature | 22.1 | 20.3 | 20.3 | 20.6 | 23.2 | 19.9 | 20.5 | 19.9 | 19.7 | 19.9 | 21.4 | 21.6 | 23.1 | 21.6 | 20.2 | 22.6 | 22.3 | 18.6 | 16.1 | 16.9 | 16.4 | 16.3 | 19.6 | 19.9 | 19.3 | 18.6 | 18.4 | 17.9 | 20.5 | 18.4 | 19.1 |
| Apparent min temperature | 29.2 | 29.3 | 28.4 | 28.6 | 29.8 | 27.7 | 27.9 | 28.3 | 28 | 28 | 28.4 | 28.3 | 30.5 | 29.9 | 28.7 | 29.9 | 28.9 | 27.2 | 24.1 | 24.5 | 23.8 | 23.7 | 26 | 28.3 | 26.6 | 27.7 | 27.2 | 26.4 | 28 | 26.9 | 27 |
| 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) | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 |
| Sunshine duration (h) | 10.3 | 10.3 | 10.4 | 9.5 | 10.2 | 10.2 | 10.1 | 10.1 | 10.2 | 10.1 | 10.2 | 10.2 | 10.2 | 10.3 | 8.3 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.3 | 10.2 | 10.3 | 10.2 | 10.2 | 10.2 | 10.2 | 10.3 | 10.2 | 10.3 | 10.4 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0.1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.3 | 0.6 | 0.8 | 1.1 | 0.1 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.6 | 0.6 | 0.2 |
| Precipitation hours | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 5 | 6 | 3 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 1 |
| Wind speed (m/s) | 7.4 | 8.3 | 8.4 | 8.3 | 10.9 | 9.1 | 11.2 | 9.7 | 11 | 9.7 | 10.5 | 9.8 | 9.7 | 8.7 | 10.2 | 5.8 | 10 | 7.6 | 9.2 | 7.6 | 11 | 11.2 | 12 | 11.5 | 13.7 | 15.8 | 14.5 | 12.1 | 10.1 | 9.9 | 10.9 |
In December 2023, the highest daytime temperature in San Sebastián was 32.9°C.
While the minimum temperature at night dropped to 16.1°C.
The average nighttime and daytime temperatures during December in San Sebastián are 19.8°C and 31.6°C respectively.
The precipitation sum in December is about 6 mm.