Goiás Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Goiás, Goiás, Brazil. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's explore all the details to give you a full picture.

Goiás experiences significant rainfall throughout the year, averaging 1601 mm (63 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct dry and rainy season during certain months. You can clearly see this in our monthly precipitation graphs below.

Monthly Precipitation Levels

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

Goiás can be quite wet during December, receiving approximately 295 mm (12 in) of precipitation over 26 rainy days.

In contrast July, experiences much drier conditions, with 0.9 mm (0.04 in) of rainfall, spread across 2 rainy days.

December, the wettest month, has a maximum daytime temperature of 30°C (86°F). During the driest month July you can expect a temperature of 32°C (90°F). For more detailed insights into the city's temperatures, visit our Goiás Temperature page.

Goiás's average annual precipitation is 1601 mm (63 in). Let's compare this to some popular worldwide tourist destinations:

Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.

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

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

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.

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