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Climate in Rondônia
(Brazil)

Average daytime and nighttime temperatures


All climate diagrams on this site result from the collected data from seven measuring weather stations in Rondônia.
Weather stations at an altitude above 610m have not been included.
All data correspond to the average monthly values of the last 20 years.


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Overview: Climate in Brazil
Daylengths and sun positions in Brazil
Compare climate with other regions or countries
Sunshine hours per day
The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 8 hours per day, July is the sunniest month in the region of Rondônia. In February, the sun shines the least.
Rain days per month
A rain day is a day on which at least 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 18 rain days, January offers the most rain days, while July has the fewest.
Precipitation amount in mm/day
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 0.4 mm, the least amount of rain falls in July. February, on the other hand, has the most rain.
Map of Rondônia

Most important cities in the region »Rondônia«

Alone 2 cities with over 100,000 inhabitants are located here. The region has a west-east extension of about 570 km and over 480 km from north to south.

CityPopulationGeo position
Porto Velho482,8408° 45' 43"S63° 54' 14"W
Ji Paraná107,69710° 53' 7"S61° 57' 6"W
Vilhena63,23112° 44' 26"S60° 8' 45"W
Ariquemes58,0969° 54' 48"S63° 2' 27"W
Cacoal55,56011° 26' 19"S61° 26' 50"W
Pôsto Fiscal Rolim de Moura37,94913° 4' 58"S62° 16' 38"W
Guajará Mirim34,11910° 46' 58"S65° 20' 22"W
Jaru28,01510° 26' 20"S62° 27' 59"W
Ouro Preto do Oeste26,68310° 44' 53"S62° 12' 57"W
Pimenta Bueno25,76211° 40' 21"S61° 11' 37"W
Presidente Médici11,92211° 10' 31"S61° 54' 5"W


Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.
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