Last updated: August 23, 2025
In December, the average temperature in San Luis, Cuba hovers around 23°C (73°F). Expect a minimum of 13°C (56°F) and a maximum of 29°C (84°F). During this time, you'll encounter approximately 46 mm (1.8 in) of precipitation spread over 5 days, with an average humidity level of 80%.
In December in San Luis, the average temperature is 23°C (73°F), with maximums reaching 29°C (84°F) and minimums dropping as low as 13°C (56°F). This pleasant climate is perfect for exploring the outdoors and enjoying local attractions.
In San Luis in December, the precipitation amount is 46 mm (1.8 in) recorded over a span of 5 days.
In San Luis in December humidity is 80%. With an average temperature of 23°C (73°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly sticky and requiring frequent breaks in shaded areas to stay comfortable while exploring.
In San Luis in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more 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 (72°F) | 23 mm (0.9 inches) | 78% | high |
| February Weather | 23°C (74°F) | 25 mm (1.0 inches) | 77% | very high |
| March Weather | 24°C (75°F) | 12 mm (0.5 inches) | 73% | extreme |
| April Weather | 26°C (78°F) | 42 mm (1.7 inches) | 72% | extreme |
| May Weather | 26°C (79°F) | 189 mm (7.5 inches) | 72% | extreme |
| June Weather | 27°C (81°F) | 176 mm (6.9 inches) | 71% | extreme |
| July Weather | 28°C (82°F) | 114 mm (4.5 inches) | 73% | extreme |
| August Weather | 28°C (82°F) | 151 mm (5.9 inches) | 74% | extreme |
| September Weather | 27°C (81°F) | 146 mm (5.7 inches) | 76% | extreme |
| October Weather | 26°C (79°F) | 199 mm (7.8 inches) | 78% | extreme |
| November Weather | 24°C (76°F) | 65 mm (2.6 inches) | 79% | very high |
| December Weather | 23°C (73°F) | 46 mm (1.8 inches) | 80% | high |