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Brazil

South Brazil weather in December 2025

Brazil

South Brazil weather in December 2025

 

Day

26 °C

 

Night

19 °C

 

Sea

23 °C

 

Precipitation

129 mm

in month

 

Rainy days

17 days

in month

 

Daylight

14 hours

average

 

Sunshine

6 hours

average

 

Humidity

81 %

 

Day

26 °C

 

Night

19 °C

 

Sea

23 °C

 

Precipitation

129 mm

in month

 

Rainy days

17 days

in month

 

Daylight

14 hours

average

 

Sunshine

6 hours

average

 

Humidity

81 %

Overview: South Brazil
In December in South Brazil, the average air temperature ranges from 26 °C (79 °F) during the day to 19 °C (67 °F) at night. There are 17 days of rain on average, where the rainfall is 129 mm (5.07 in).

Weather charts for South Brazil

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Bombinhas on a cloudy day
Architecture in Canela on a clear sky day
Foz do Iguaçu on a sunny day with some clouds

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Weather overview and FAQs

Weather overview

In December in South Brazil, the average air temperature ranges from 26 °C (79 °F) during the day to 19 °C (67 °F) at night. There are 17 days of rain on average, where the rainfall is 129 mm (5.07 in).

Is December a good month to visit South Brazil?

There are good conditions for visiting in South Brazil in December. The daily temperatures in this month reach pleasant 26 °C (79 °F). The temperature of the sea will be perfect at 23 °C (74 °F). At night, temperatures hover around a pleasant 19 °C (67 °F).

What is the temperature in South Brazil during the day in December?

In South Brazil in December, the average daily temperatures will be 26 °C (79 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.

What is the sea temperature in December in South Brazil?

The temperature of the sea in South Brazil in December is 23 °C (74 °F). This warm sea is nice for swimming, maybe cold for some, but most people can spend a long time in it.

How many rainy days can I expect in December in South Brazil?

In December in South Brazil, we can expect 17 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.9 days of the week, or in general - 55 % days.

What is the night temperature in December in South Brazil?

The average night temperature in South Brazil in December is 19 °C (67 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.

What is the rainfall intensity in December in South Brazil?

There is precipitation of 129 mm (5.07 in) in South Brazil in December, which means 4 mm (0.17 in) rainfall per day on average.

How many sunny hours can I expect in South Brazil in December?

In South Brazil in December, you can expect around 6 hours of sunshine.

Is it hot in South Brazil in December?

In December in South Brazil, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

How long is the day (from dawn till dusk) in South Brazil in December?

The length of daylight in South Brazil in December is 14 hours.

Is the sea in South Brazil warmer in December than in January?

No, the sea is not warmer in December in South Brazil than in January.

How windy is it in December in South Brazil?

In South Brazil in December, there will be an average wind scale of 4.

Is the weather in South Brazil warmer in December than in January?

No, December is not warmer in South Brazil than January.

Is South Brazil rainier in December than in November?

Yes, in South Brazil in December it rains more than in November.

How humid is South Brazil in December?

Humidity in South Brazil in December is 81 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.

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