Guarus Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Guarus, Rio de Janeiro State, Brazil. Long-term data from 1990 to 2020 was used to calculate these averages. Let's now guide you through the details for a complete overview.

Guarus has a notably wet climate with abundant precipitation, recording 1271 mm (50 in) of rainfall per year. It does, however, have a distinct dry and rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

The seasons in Guarus, bring significant changes in precipitation. The wettest month, December, receives heavy rainfall, with an average of 227 mm (8.9 in) of precipitation. This rainfall is distributed across 21 rainy days.

In contrast, the driest month, June, experiences much less rainfall, totaling 27 mm (1.1 in) over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

December, the wettest month, has a maximum daytime temperature of 32°C (90°F). During the driest month June you can expect a temperature of 29°C (84°F). For more detailed insights into the city's temperatures, visit our Guarus 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.

Guarus vs World: Rainfall Compared

Guarus's average annual precipitation is 1271 mm (50 in). Let's compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

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.

Climate change is affecting precipitation patterns worldwide, including Guarus:

• 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.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) 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 Guarus's weather, including sunshine hours, humidity levels, and temperature data, visit our Guarus Climate page.