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Jacareí Weather in January

With daytime temperatures of 29°C (84°F) and nighttime lows of 20°C (68°F), January in Jacareí brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Jacareí in January

As part of the rainy season, Jacareí sees around 22 days of rain in January, with an average of 239 mm (9.4 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Jacareí in January

In January, Jacareí sees high temperatures, with highs of 29°C (84°F). Nights drop to around 20°C (68°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 20°C (68°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Jacareí in January

The month brings about 170 hours of sunlight, offering a comfortable mix of sun and rainy moments.

Should you favor a climate that's both dry and comfortably warm, April, May, June, July, August and September typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Jacareí Temperature in January

Min TemperatureMin Temperature 20°C (68°F)  
Max TemperatureMax Temperature 29°C (84°F)  
Chance of RainChance of Rain 73%  
PrecipitationPrecipitation 239 mm (9.4 in)  
Rainy daysRainy days 22 days  
HumidityHumidity 80% *  
SunshineSunshine 170 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Sao Paulo, Brazil (73 KM, 45 Miles).

Best Places in Brazil in January

Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in January →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Jacareí in January

Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Jacareí in January

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

Swimming
7/10
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.

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

More climate data for Jacareí