Rondônia Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Rondônia, Rondônia, 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.
Rondônia has a notably wet climate with abundant precipitation, recording 1853 mm (73 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 climate in Rondônia shows significant variation throughout the year. Expect 301 mm (12 in) of precipitation during the wettest month February, distributed over 19 rainy days.
In contrast, July offers drier and sunnier days, with around 12 mm (0.5 in) of rainfall over 5 rainy days.
February, the wettest month, has a maximum daytime temperature of 30°C (86°F). During the driest month July you can expect a temperature of 34°C (93°F). For more detailed insights into the city's temperatures, visit our Rondônia 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
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Rondônia vs World: Rainfall Compared
Rondônia's average annual precipitation is 1853 mm (73 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.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
- 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 Rondônia's weather, including sunshine hours, humidity levels, and temperature data, visit our Rondônia Climate page.
