Ribeirão Preto Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Ribeirão Preto. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Ribeirão Preto experiences significant rainfall throughout the year, averaging 1393 mm of precipitation annually.

Monthly Precipitation Levels

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

The seasons in Ribeirão Preto, bring significant changes in precipitation. The wettest month, January, receives heavy rainfall, with an average of 259 mm of precipitation.

This rainfall is distributed across 18 rainy days. In contrast, the driest month, August, experiences much less rainfall, totaling 19 mm over 3 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

January, the city’s wettest month, has a maximum daytime temperature of 31°C. During the driest month August you can expect a temperature of 30°C. For more detailed insights into the city’s temperatures, visit our Ribeirão Preto 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

Ribeirão Preto’s average annual precipitation is 1393 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Ribeirão Preto:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

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