Rio Claro Weather in December

December in Rio Claro brings very high temperatures around 30°C (86°F) during the day, dropping to 20°C (68°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in Rio Claro in December

As part of the rainy season, Rio Claro sees around 19 days of rain in December, with an average of 238 mm (9.4 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.

Temperature in Rio Claro in December

In December, Rio Claro sees very high temperatures, with highs of 30°C (86°F). Nights drop to around 20°C (68°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. At 20°C (68°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.

Sunshine in Rio Claro in December

The month enjoys around 242 hours of sunshine. The wet weather tends to wait until afternoon or evening to arrive, leaving the first half of most days dry and sunny.

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