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Jacareí Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Jacareí.
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Climate overview of Jacareí
Jacareí, São Paulo State, Brazil, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 27°C (81°F), peaking in February at 30°C (86°F) and dipping in July to 24°C (75°F).
Rainfall is high, totalling around 1396 mm (55 in) per year. January is the wettest month and August the driest. The city also experiences a distinct rainy season from December to February. Sunshine peaks in July, when the city sees around 6.2 hours of sunshine per day.
Jacareí Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jacareí - and find the best time to visit.
Monthly Temperature in Jacareí
With minimal seasonal shifts, Jacareí experiences a constant climate year-round. Average maximum daytime temperatures range from a comfortable 30°C (86°F) in February, the warmest time of the year, to a comfortable 24°C (75°F) during cooler months like July.
At night, you can expect temperatures ranging from 20°C (68°F) in February to around 12°C (54°F) during July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Jacareí
Jacareí has a notably wet climate with abundant precipitation, recording 1396 mm (55 in) of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, January it receives heavy rainfall, averaging 239 mm (9.4 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month August brings less rainfall, with 40 mm (1.6 in) over 9 rainy days. For more details, please visit our Jacareí Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Jacareí
While the amount of sunshine in Jacareí varies throughout the year, all seasons offer their own charm. Enjoy up to 6.2 hours of daily sun in July, and experience slightly darker atmosphere in December, with about 5.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Sao Paulo, Brazil (73 KM, 45 Miles).
Daily hours of sunshine
Data from: Sao Paulo, Brazil (73 KM, 45 Miles).
Humidity in Jacareí by Month
The relative humidity is high throughout the year in Jacareí.
The city experiences its highest humidity in January, reaching 80%. In August, the humidity drops to its lowest level at 74%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Sao Paulo, Brazil (73 KM, 45 Miles).
Best Time to Visit Jacareí
Conditions in Jacareí are generally most comfortable in April, May, June, July, August and September. They are typically least comfortable in February.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
mixed
Feb
very wet
Mar
very good
Apr
excellent
May
excellent
Jun
excellent
Jul
excellent
Aug
excellent
Sep
excellent
Oct
very good
Nov
very good
Dec
good
- Best overall: April, May, June, July, August and September
- Warmest weather: January, February, March and December
- Most sunshine: May and July
- Fewest rainy days: May, June, July and August
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from December to February
Frequently asked questions about the climate in Jacareí
What is the best time to visit Jacareí?
April, May, June, July, August and September typically offer the most optimal weather in Jacareí. In contrast, February tends to have less optimal conditions. Jacareí has a distinct rainy season from December to February.
What temperatures can I expect in Jacareí?
Daytime highs range from 24°C (75°F) in July to 30°C (86°F) in February. Nighttime lows range from 12°C (54°F) to 20°C (68°F). Temperatures stay relatively stable year-round.
How much rain does Jacareí get?
Annual rainfall is around 1396 mm (55 in). January is the wettest month with 239 mm (9.4 in), while August is the driest with 40 mm (1.6 in).
How sunny is Jacareí?
Jacareí receives around 1,998 hours of sunshine per year. July is the sunniest month with 187 hours, while December is the cloudiest with just 150 hours.
Jacareí 3-Day Forecast
Jacareí on the map
Jacareí is highlighted - select any city to see its climate.
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