Porto Alegre Weather in December

Porto Alegre in December sees very high temperatures, with highs around 30°C (86°F) and overnight lows of 19°C (66°F). Rainfall is fairly high at around 129 mm (5.1 in) on average, so pack waterproofs just in case.

Rainfall in Porto Alegre in December

Historically, approximately 16 days this month are expected to have rain, averaging 129 mm (5.1 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Porto Alegre in December

Temperatures in Porto Alegre in December top out at 30°C (86°F) and drop to 19°C (66°F) overnight. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. 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.

Sunshine in Porto Alegre in December

Enjoy a sunny month with about 233 hours of sunshine, the clear skies make Porto Alegre even more beautiful.

Wind Speed in Porto Alegre in December

Average wind conditions reach 1 m/s (2 knots) in December. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.

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