Last updated: August 23, 2025
In December, the average temperature in San Marcos, Honduras hovers around 21°C (70°F), creating a comfortable climate for outdoor activities. Expect a minimum of 13°C (56°F) and a peak of 31°C (88°F), offering a pleasant range for various preferences. However, be prepared for 16 days of rainfall contributing to a total precipitation of 91 mm (3.6 in), while the air maintains a relatively high average humidity of 74%.
In December in San Marcos, the average temperature is 21°C (70°F). Maximums can reach 31°C (88°F), while minimums can drop to as low as 13°C (56°F). This mild climate makes San Marcos an ideal destination for travelers seeking pleasant weather during this time of year.
In San Marcos in December, the total precipitation amount is 91 mm (3.6 in) spread over 16 days.
In San Marcos in December humidity is 74%. With an average temperature of 21°C (70°F), this humidity feels like a warm, moist embrace, making outdoor activities both invigorating and slightly draining, so travelers should stay hydrated and take breaks often.
In San Marcos 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 Marcos.
UV Risk Categories
Weather in San Marcos varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Marcos, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 21°C (70°F) | 98 mm (3.8 inches) | 80% | very high |
| February Weather | 22°C (72°F) | 61 mm (2.4 inches) | 72% | extreme |
| March Weather | 23°C (73°F) | 71 mm (2.8 inches) | 61% | extreme |
| April Weather | 25°C (78°F) | 70 mm (2.8 inches) | 53% | extreme |
| May Weather | 26°C (79°F) | 173 mm (6.8 inches) | 51% | extreme |
| June Weather | 25°C (78°F) | 253 mm (10.0 inches) | 52% | extreme |
| July Weather | 25°C (77°F) | 192 mm (7.5 inches) | 58% | extreme |
| August Weather | 25°C (77°F) | 202 mm (7.9 inches) | 63% | extreme |
| September Weather | 25°C (77°F) | 214 mm (8.4 inches) | 71% | extreme |
| October Weather | 24°C (76°F) | 254 mm (10.0 inches) | 79% | extreme |
| November Weather | 22°C (72°F) | 288 mm (11.4 inches) | 79% | very high |
| December Weather | 21°C (70°F) | 91 mm (3.6 inches) | 74% | very high |