Last updated: August 23, 2025
In December, the average temperature in San Luis, Cuba is a pleasant 24°C (76°F). While you can expect temperatures to dip to a cool 16°C (62°F) at night, the days can reach a warm 32°C (89°F). Be prepared for some rain, as the area experiences an average precipitation of 31 mm (1.2 in) over approximately 6 days. With an average humidity of 80%, it's advisable to stay hydrated and enjoy the tropical feel!
In December in San Luis, the average temperature is 24°C (76°F), with maximums reaching up to 32°C (89°F) and minimums dipping as low as 16°C (62°F). This pleasant climate makes San Luis an ideal destination for travelers seeking comfortable weather.
In San Luis in December, the precipitation amount is 31 mm (1.2 in) over a span of 6 days.
In San Luis in December humidity is 80%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace that can make exploring outdoors quite draining, so it's essential to stay hydrated and take breaks in the shade while traveling.
In San Luis in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 | 23°C (75°F) | 21 mm (0.8 inches) | 76% | very high |
| February Weather | 24°C (76°F) | 17 mm (0.7 inches) | 74% | extreme |
| March Weather | 24°C (76°F) | 35 mm (1.4 inches) | 72% | extreme |
| April Weather | 26°C (78°F) | 56 mm (2.2 inches) | 72% | extreme |
| May Weather | 26°C (79°F) | 173 mm (6.8 inches) | 70% | extreme |
| June Weather | 27°C (81°F) | 99 mm (3.9 inches) | 73% | extreme |
| July Weather | 27°C (81°F) | 96 mm (3.8 inches) | 78% | extreme |
| August Weather | 28°C (82°F) | 106 mm (4.2 inches) | 81% | extreme |
| September Weather | 27°C (81°F) | 136 mm (5.3 inches) | 80% | extreme |
| October Weather | 26°C (79°F) | 116 mm (4.6 inches) | 80% | extreme |
| November Weather | 25°C (77°F) | 83 mm (3.3 inches) | 82% | very high |
| December Weather | 24°C (76°F) | 31 mm (1.2 inches) | 80% | very high |