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

This page shows the average amount of rainfall per month in Itaboraí. 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.

Itaboraí experiences significant rainfall throughout the year, averaging 1718 mm of precipitation annually.

Monthly Precipitation Levels

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

The climate in Itaboraí shows significant variation throughout the year. Expect 258 mm of precipitation during the wettest month January, distributed over 20 rainy days.

In contrast, August offers drier and sunnier days, with around 48 mm of rainfall over 9 rainy days.

January, the city’s wettest month, has a maximum daytime temperature of 32°C. During the driest month August you can expect a temperature of 27°C. For more detailed insights into the city’s temperatures, visit our Itaboraí 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

Itaboraí’s average annual precipitation is 1718 mm. Let’s compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm of rainfall annually, with precipitation evenly distributed throughout the year.

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

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

Interesting weather facts

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

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