Barra Grande Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Barra Grande, Rio de Janeiro State, Brazil. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's explore the details to provide you with a complete overview.

Barra Grande has a relatively rainy climate with high precipitation levels, averaging 2887 mm (114 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))

The climate in Barra Grande shows significant variation throughout the year. Expect 467 mm (18 in) of precipitation during the wettest month January, distributed over 21 rainy days.

In contrast, August offers drier and sunnier days, with around 81 mm (3.2 in) of rainfall over 9 rainy days.

January, the wettest month, has a maximum daytime temperature of 28°C (82°F). The city receives 104 hours of sunshine in this period. During the driest month August you can expect a temperature of 24°C (75°F). For more detailed insights into the city's temperatures, visit our Barra Grande Temperature page.

Barra Grande's average annual precipitation is 2887 mm (114 in). Let's compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.

Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

Precipitation has a very strong role in determining the local climate and ecosystem:

• 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.

• 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 Barra Grande's weather, including sunshine hours, humidity levels, and temperature data, visit our Barra Grande Climate page.