Osasco Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Osasco. The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.

Osasco has a relatively rainy climate with high precipitation levels, averaging 1445 mm of rainfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The climate in Osasco shows significant variation throughout the year. Expect 239 mm of precipitation during the wettest month January, distributed over 25 rainy days.

In contrast, August offers drier and sunnier days, with around 42 mm of rainfall over 11 rainy days.

January, the city’s wettest month, has a maximum daytime temperature of 28°C. During the driest month August you can expect a temperature of 25°C. For more detailed insights into the city’s temperatures, visit our Osasco Temperature page.

Annual Precipitation in Brazil

The map below shows the annual precipitation across Brazil. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Osasco’s average annual precipitation is 1445 mm. Let’s compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages [964 mm], with snowy winters and rainy summers.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.

Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

For more detailed information about Osasco’s weather, including sunshine hours, humidity levels, and temperature data, visit our Osasco Climate page.