Last updated: August 23, 2025
In December, the average temperature in San Juan Bautista, Guatemala is a pleasant 23°C (73°F), with a minimum of 16°C (60°F) and a maximum of 31°C (88°F). Expect some rain, as precipitation averages 38 mm (1.5 in) over about 10 days, contributing to a humidity level of 76%. Enjoy the warm and slightly humid atmosphere!
In December in San Juan Bautista, the average temperature is 23°C (73°F), with maximums reaching 31°C (88°F) and minimums dropping to as low as 16°C (60°F). It's a wonderful time to visit, as the pleasant weather is perfect for outdoor activities and exploration.
In San Juan Bautista in December, the precipitation amount is 38 mm (1.5 in) over the course of 10 days.
In San Juan Bautista in December humidity is 76%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket, making outdoor activities feel more intense and prompting travelers to seek shade or cool breaks more frequently.
In San Juan Bautista 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 San Juan Bautista.
UV Risk Categories
Weather in San Juan Bautista varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Juan Bautista, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 23°C (73°F) | 31 mm (1.2 inches) | 76% | extreme |
| February Weather | 23°C (75°F) | 20 mm (0.8 inches) | 68% | extreme |
| March Weather | 24°C (76°F) | 51 mm (2.0 inches) | 59% | extreme |
| April Weather | 24°C (76°F) | 147 mm (5.8 inches) | 57% | extreme |
| May Weather | 24°C (76°F) | 480 mm (18.9 inches) | 65% | extreme |
| June Weather | 24°C (75°F) | 456 mm (18.0 inches) | 66% | extreme |
| July Weather | 24°C (75°F) | 355 mm (14.0 inches) | 75% | extreme |
| August Weather | 24°C (75°F) | 414 mm (16.3 inches) | 82% | extreme |
| September Weather | 23°C (74°F) | 484 mm (19.1 inches) | 82% | extreme |
| October Weather | 23°C (74°F) | 523 mm (20.6 inches) | 83% | extreme |
| November Weather | 23°C (74°F) | 198 mm (7.8 inches) | 80% | very high |
| December Weather | 23°C (73°F) | 38 mm (1.5 inches) | 76% | very high |