Last updated: August 23, 2025
In La Reforma, Guatemala, the average temperature for December is a pleasant 20°C (68°F), with a minimum of 12°C (54°F) and a maximum of 26°C (79°F). Expect about 71 mm (2.8 in) of precipitation spread over 19 days, contributing to an average humidity of 76%.
In December in La Reforma, the average temperature is 20°C (68°F). Maximums can reach 26°C (79°F), while minimums can drop as low as 12°C (54°F). This mild climate makes La Reforma an ideal destination for outdoor activities and sightseeing during this time of year.
In La Reforma in December, the total precipitation amount is 71 mm (2.8 in) recorded over a span of 19 days.
In La Reforma in December, humidity is 76%. With an average temperature of 20°C (68°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration both exhilarating and slightly stifling, ideal for leisurely strolls but necessitating frequent breaks to hydrate and cool off.
In La Reforma in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in La Reforma.
UV Risk Categories
Weather in La Reforma varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in La Reforma, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 19°C (67°F) | 51 mm (2.0 inches) | 76% | extreme |
| February Weather | 20°C (68°F) | 62 mm (2.5 inches) | 68% | extreme |
| March Weather | 20°C (68°F) | 134 mm (5.3 inches) | 59% | extreme |
| April Weather | 21°C (69°F) | 248 mm (9.8 inches) | 57% | extreme |
| May Weather | 21°C (70°F) | 702 mm (27.6 inches) | 65% | extreme |
| June Weather | 21°C (70°F) | 561 mm (22.1 inches) | 66% | extreme |
| July Weather | 21°C (70°F) | 461 mm (18.2 inches) | 75% | extreme |
| August Weather | 21°C (70°F) | 588 mm (23.1 inches) | 82% | extreme |
| September Weather | 21°C (69°F) | 604 mm (23.8 inches) | 82% | extreme |
| October Weather | 21°C (69°F) | 528 mm (20.8 inches) | 83% | extreme |
| November Weather | 20°C (69°F) | 224 mm (8.8 inches) | 80% | extreme |
| December Weather | 20°C (68°F) | 71 mm (2.8 inches) | 76% | very high |