Last updated: August 23, 2025
In December, the average temperature in San Juan Ermita, Guatemala hovers around 20°C (69°F), with comfortable lows of 12°C (53°F) and occasional highs reaching 32°C (89°F). Expect light rainfall totaling 21 mm (0.8 in) spread across about 5 days, paired with an average humidity of 74%—perfect for enjoying the season's charm!
In December in San Juan Ermita, the average temperature is 20°C (69°F). The maximum can reach 32°C (89°F), and the minimum can be as low as 12°C (53°F). This makes it an ideal time for travelers to enjoy pleasant weather and outdoor activities.
In San Juan Ermita in December, the precipitation amount is 21 mm (0.8 in) spread over a period of 5 days.
In San Juan Ermita in December, humidity is 74%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sticky and requiring frequent breaks for hydration, but with the right pacing, you can still enjoy the sights and sounds of your surroundings.
In San Juan Ermita 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 Ermita.
UV Risk Categories
Weather in San Juan Ermita varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Juan Ermita, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 20°C (68°F) | 15 mm (0.6 inches) | 80% | extreme |
| February Weather | 22°C (71°F) | 14 mm (0.6 inches) | 72% | extreme |
| March Weather | 22°C (73°F) | 13 mm (0.5 inches) | 61% | extreme |
| April Weather | 25°C (77°F) | 23 mm (0.9 inches) | 53% | extreme |
| May Weather | 25°C (78°F) | 143 mm (5.6 inches) | 51% | extreme |
| June Weather | 24°C (75°F) | 225 mm (8.8 inches) | 52% | extreme |
| July Weather | 23°C (74°F) | 108 mm (4.3 inches) | 58% | extreme |
| August Weather | 24°C (75°F) | 172 mm (6.8 inches) | 63% | extreme |
| September Weather | 24°C (75°F) | 201 mm (7.9 inches) | 71% | extreme |
| October Weather | 23°C (74°F) | 184 mm (7.2 inches) | 79% | extreme |
| November Weather | 21°C (70°F) | 63 mm (2.5 inches) | 79% | very high |
| December Weather | 20°C (69°F) | 21 mm (0.8 inches) | 74% | very high |