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Osasco Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Osasco.
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Climate overview of Osasco
With consistently stable weather, Osasco, São Paulo State, Brazil, sees little seasonal temperature change. Daytime highs average 26°C (79°F), ranging from 29°C (84°F) in February to 24°C (75°F) in June.
The city receives considerable rainfall, with around 1445 mm (57 in) annually. January is the wettest month. It has a distinct rainy season from December to February. The most sunshine falls in July, with an average of 6.2 hours of daily sunshine.
Osasco Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Osasco - and find the best time to visit.
Monthly Temperature in Osasco
The climate in Osasco remains fairly constant, offering comfortable temperatures throughout the year. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in February to a comfortable 24°C (75°F) in the coolest month, June.
Nights vary from 19°C (66°F) in February to around 12°C (54°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Osasco
Osasco is known for its substantial rainfall, with annual precipitation reaching 1445 mm (57 in). The climate in Osasco shows significant variation throughout the year. Expect heavy rainfall in January, the wettest month, with an average of 239 mm (9.4 in) of precipitation over 25 rainy days.
In contrast, the driest month August offers drier and sunnier days, with around 42 mm (1.7 in) of rainfall over 11 rainy days. For more details, please visit our Osasco 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 Osasco
Osasco offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between July (6.2 hours daily) and December (5.0 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Sao Paulo, Brazil (16 KM, 10 Miles).
Daily hours of sunshine
Data from: Sao Paulo, Brazil (16 KM, 10 Miles).
Humidity in Osasco by Month
The relative humidity is high throughout the year in Osasco.
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 (16 KM, 10 Miles).
Best Time to Visit Osasco
Conditions in Osasco are generally most comfortable in April, May, June, July, August and September. They are typically least comfortable in January and 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
mixed
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: June, July and August
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from December to February
Frequently asked questions about the climate in Osasco
What is the best time to visit Osasco?
April, May, June, July, August and September typically offer the most optimal weather in Osasco. In contrast, January and February tend to have less optimal conditions. Osasco has a distinct rainy season from December to February.
What temperatures can I expect in Osasco?
Daytime highs range from 24°C (75°F) in June to 29°C (84°F) in February. Nighttime lows range from 12°C (54°F) to 19°C (66°F). Temperatures stay relatively stable year-round.
How much rain does Osasco get?
Annual rainfall is around 1445 mm (57 in). January is the wettest month with 239 mm (9.4 in), while August is the driest with 42 mm (1.7 in).
How sunny is Osasco?
Osasco 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.
Osasco 3-Day Forecast
Osasco on the map
Osasco is highlighted - select any city to see its climate.
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