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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 excellent 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.
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).
Jacareí Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jacareí - and find the best time to visit.
Best Places in Brazil in September
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in September →
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 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.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Jacareí 3-Day Forecast
More climate data for Jacareí
Temperature Rainfall Sunshine Humidity
See the full Jacareí climate overview or explore weather in Brazil.
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