São Sebastião Weather in December

During December, São Sebastião experiences high daytime temperatures of 27°C (81°F) and cooler nights around 23°C (73°F). December sits within the rainy season, so expect regular and often heavy rainfall.

Rainfall in São Sebastião in December

As part of the rainy season, São Sebastião sees around 19 days of rain in December, with an average of 180 mm (7.1 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in São Sebastião in December

Expect highs of 27°C (81°F) in São Sebastião in December, with nights dropping to around 23°C (73°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights remain mild at 23°C (73°F), making evenings a pleasant time to be outdoors.

Sunshine in São Sebastião in December

The city usually sees around 92 hours of sunlight, indicating fewer sunny days.

If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for São Sebastião.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our São Sebastião's climate page.

São Sebastião Temperature in December

Min Temperature 23°C (73°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 64%  

Precipitation 180 mm (7.1 in)  

Rainy days 19 days  

Sunshine 92 hours *  

Percentage Sunshine *  

* Data from: Ubatuba, Brazil (53 KM, 33 Miles).

What to Wear in São Sebastião in December

Warm but pleasant conditions in São Sebastião in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in São Sebastião in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our São Sebastião's climate page.

More climate data for São Sebastião

Temperature Rainfall Sunshine

See the full São Sebastião climate overview or explore weather in Brazil.