Jacareí Weather in September

During September, Jacareí experiences high daytime temperatures of 26°C (79°F) and cooler nights around 15°C (59°F). Expect quite a bit of rainfall. Around 87 mm (3.4 in) is typical.

Rainfall in Jacareí in September

Records from the past 30 years suggest around 12 days of rain, with 87 mm (3.4 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Jacareí in September

September tends to be one of the perfect months in Jacareí, with 26°C (79°F) in the afternoon and 15°C (59°F) overnight. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Jacareí in September

The city usually sees around 152 hours of sunlight, indicating a moderately sunny period.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Jacareí.

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• January
• February
• March
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• May
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• October
• November
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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 September

Min Temperature 15°C (59°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 39%  

Precipitation 87 mm (3.4 in)  

Rainy days 12 days  

Humidity 77% *  

Sunshine 152 hours *  

Percentage Sunshine *  

* Data from: Sao Paulo, Brazil (73 KM, 45 Miles).

What to Wear in Jacareí in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Jacareí in September

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

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

8/10

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 Jacareí's climate page.

More climate data for Jacareí

Temperature Rainfall Sunshine Humidity

See the full Jacareí climate overview or explore weather in Brazil.