Itatiaia Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Itatiaia, Rio de Janeiro State, Brazil. This average is based on long-term data collected between 1990 and 2020. Now, let's break down all the details for a clearer picture.
Itatiaia has a relatively rainy climate with high precipitation levels, averaging 2347 mm (92 in) of rainfall annually. Despite the high annual total, it does experience a distinct rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Itatiaia can be quite wet during January, receiving approximately 393 mm (15 in) of precipitation over 22 rainy days.
In contrast July, experiences much drier conditions, with 47 mm (1.9 in) of rainfall, spread across 8 rainy days.
January, the wettest month, has a maximum daytime temperature of 28°C (82°F). During the driest month July you can expect a temperature of 23°C (73°F). For more detailed insights into the city's temperatures, visit our Itatiaia Temperature page.
Annual Rainfall in Brazil: City Comparison
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.
heavy rainfall
high
moderate
low
almost none
Itatiaia vs World: Rainfall Compared
Itatiaia's average annual precipitation is 2347 mm (92 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Itatiaia's weather, including sunshine hours, humidity levels, and temperature data, visit our Itatiaia Climate page.
