Last updated: August 23, 2025
In San Luis, Colombia, the average temperature in December hovers around 23°C (73°F), making it a pleasant time to explore. However, expect a range between a cool 16°C (61°F) and a warm 31°C (88°F). With 146 mm (5.7 in) of precipitation spread over 20 days, be prepared for some rain. Notably, the average humidity sits at a high 83%, adding to the overall tropical feel of the month.
In December in San Luis, the average temperature is 23°C (73°F), with maximums reaching 31°C (88°F) and minimums dropping to as low as 16°C (61°F). It's a perfect time for travelers to enjoy mild weather and outdoor activities while exploring the beauty of San Luis.
In San Luis in December, the precipitation amount is 146 mm (5.7 in) spread over a duration of 20 days.
In San Luis in December, humidity is 83%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making travel slightly uncomfortable and causing you to break a sweat as you explore.
In San Luis in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Luis.
UV Risk Categories
Weather in San Luis varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 22°C (73°F) | 105 mm (4.2 inches) | 78% | extreme |
| February Weather | 23°C (74°F) | 101 mm (4.0 inches) | 77% | extreme |
| March Weather | 23°C (74°F) | 238 mm (9.4 inches) | 80% | extreme |
| April Weather | 23°C (74°F) | 252 mm (9.9 inches) | 83% | extreme |
| May Weather | 23°C (74°F) | 251 mm (9.9 inches) | 87% | extreme |
| June Weather | 23°C (74°F) | 103 mm (4.1 inches) | 87% | extreme |
| July Weather | 24°C (76°F) | 55 mm (2.2 inches) | 85% | extreme |
| August Weather | 24°C (76°F) | 94 mm (3.7 inches) | 80% | extreme |
| September Weather | 23°C (75°F) | 147 mm (5.8 inches) | 80% | extreme |
| October Weather | 23°C (73°F) | 279 mm (11.0 inches) | 85% | extreme |
| November Weather | 22°C (72°F) | 425 mm (16.7 inches) | 87% | extreme |
| December Weather | 23°C (73°F) | 146 mm (5.7 inches) | 83% | extreme |