Libertador General San Martín Weather in December

December in Libertador General San Martín typically sees daytime highs of 30°C (86°F) and nighttime lows of 19°C (66°F). December falls within the rainy season, so heavy rainfall is to be expected.

Rainfall in Libertador General San Martín in December

As part of the rainy season, Libertador General San Martín sees around 12 days of rain in December, with an average of 248 mm (9.8 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Libertador General San Martín in December

Libertador General San Martín in December gets highs of 30°C (86°F) during the day and drops to 19°C (66°F) at night. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. It's the warmest month of the year on average, so summer clothing is the way to go.

Sunshine in Libertador General San Martín in December

Expect a lot of sunshine this month, with about 208 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Libertador General San Martín. Our weather planner can help you explore destinations with more pleasant weather conditions.