Annual Weather Averages in Rio Branco
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Rio Branco
High Temp: 93 °F
Low Temp: 67 °F
Mean Temp: 80 °F
Precipitation: 3.90"
Humidity: 83%
Dew Point: 72 °F
Wind: 6 mph
Pressure: 29.87 "Hg
Visibility: 7 mi
January Climate & Weather Averages in Rio Branco
High Temp: 88 °F
Low Temp: 73 °F
Mean Temp: 80 °F
Precipitation: 7.11"
Humidity: 88%
Dew Point: 74 °F
Wind: 6 mph
Pressure: 29.83 "Hg
Visibility: 7 mi
February Climate & Weather Averages in Rio Branco
High Temp: 87 °F
Low Temp: 73 °F
Mean Temp: 80 °F
Precipitation: 7.25"
Humidity: 88%
Dew Point: 74 °F
Wind: 6 mph
Pressure: 29.84 "Hg
Visibility: 7 mi
March Climate & Weather Averages in Rio Branco
High Temp: 88 °F
Low Temp: 73 °F
Mean Temp: 80 °F
Precipitation: 5.97"
Humidity: 88%
Dew Point: 74 °F
Wind: 6 mph
Pressure: 29.85 "Hg
Visibility: 7 mi
April Climate & Weather Averages in Rio Branco
High Temp: 88 °F
Low Temp: 72 °F
Mean Temp: 80 °F
Precipitation: 4.44"
Humidity: 88%
Dew Point: 74 °F
Wind: 5 mph
Pressure: 29.87 "Hg
Visibility: 7 mi
May Climate & Weather Averages in Rio Branco
High Temp: 87 °F
Low Temp: 70 °F
Mean Temp: 79 °F
Precipitation: 2.24"
Humidity: 86%
Dew Point: 72 °F
Wind: 5 mph
Pressure: 29.90 "Hg
Visibility: 8 mi
June Climate & Weather Averages in Rio Branco
High Temp: 88 °F
Low Temp: 68 °F
Mean Temp: 78 °F
Precipitation: 1.30"
Humidity: 84%
Dew Point: 71 °F
Wind: 5 mph
Pressure: 29.93 "Hg
Visibility: 8 mi
July Climate & Weather Averages in Rio Branco
High Temp: 89 °F
Low Temp: 67 °F
Mean Temp: 78 °F
Precipitation: 0.75"
Humidity: 77%
Dew Point: 68 °F
Wind: 5 mph
Pressure: 29.94 "Hg
Visibility: 8 mi
August Climate & Weather Averages in Rio Branco
High Temp: 93 °F
Low Temp: 68 °F
Mean Temp: 80 °F
Precipitation: 1.18"
Humidity: 71%
Dew Point: 67 °F
Wind: 6 mph
Pressure: 29.91 "Hg
Visibility: 7 mi
September Climate & Weather Averages in Rio Branco
High Temp: 93 °F
Low Temp: 71 °F
Mean Temp: 82 °F
Precipitation: 2.04"
Humidity: 73%
Dew Point: 70 °F
Wind: 7 mph
Pressure: 29.87 "Hg
Visibility: 7 mi
October Climate & Weather Averages in Rio Branco
High Temp: 92 °F
Low Temp: 72 °F
Mean Temp: 82 °F
Precipitation: 3.70"
Humidity: 80%
Dew Point: 73 °F
Wind: 7 mph
Pressure: 29.84 "Hg
Visibility: 7 mi
November Climate & Weather Averages in Rio Branco
High Temp: 90 °F
Low Temp: 72 °F
Mean Temp: 81 °F
Precipitation: 4.85"
Humidity: 84%
Dew Point: 74 °F
Wind: 7 mph
Pressure: 29.80 "Hg
Visibility: 8 mi
December Climate & Weather Averages in Rio Branco
High Temp: 88 °F
Low Temp: 73 °F
Mean Temp: 80 °F
Precipitation: 6.02"
Humidity: 87%
Dew Point: 74 °F
Wind: 7 mph
Pressure: 29.82 "Hg
Visibility: 7 mi