Rio Branco climate

Rio Branco Weather in April

NASA POWER reanalysis for the half-degree grid cell around Rio Branco, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 28°C on April 1 to 28°C on April 30, and lows from 22°C to 22°C. Normal precipitation for the month is 147 mm over about 21 wet days.

April day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Rio Branco, in °C, with the record for each date.101520253035151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

April at a glance

Average high
28°C
Average low
22°C
Precipitation
147 mm
Reanalysis high
33°CApr 23, 2018
Reanalysis low
14°CApr 18, 1999
Daylight
12 h 00 min to 11 h 45 min
Cloud cover
76%
Humidity
92%
Dew point
23°C
Wind
2.5 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Apr 128°C22°C30°C 199819°C 199781%
Apr 228°C22°C30°C 200518°C 199780%
Apr 328°C22°C30°C 200719°C 199780%
Apr 428°C22°C30°C 201620°C 200879%
Apr 528°C22°C31°C 201820°C 200878%
Apr 628°C22°C31°C 201818°C 201977%
Apr 728°C22°C30°C 199817°C 201977%
Apr 828°C22°C30°C 201817°C 201976%
Apr 928°C22°C29°C 200519°C 201975%
Apr 1028°C22°C32°C 201820°C 201075%
Apr 1128°C22°C30°C 201820°C 201074%
Apr 1228°C22°C30°C 200518°C 199571%
Apr 1328°C22°C30°C 201616°C 199570%
Apr 1428°C22°C30°C 199817°C 199570%
Apr 1528°C22°C30°C 199819°C 200870%
Apr 1628°C22°C30°C 199818°C 200870%
Apr 1728°C22°C31°C 201816°C 199970%
Apr 1828°C22°C31°C 201814°C 199969%
Apr 1928°C22°C31°C 201815°C 199968%
Apr 2028°C22°C31°C 201817°C 199969%
Apr 2128°C22°C30°C 199816°C 199568%
Apr 2228°C22°C32°C 201815°C 199567%
Apr 2328°C22°C33°C 201816°C 199566%
Apr 2428°C22°C31°C 201818°C 199566%
Apr 2528°C22°C30°C 199820°C 200165%
Apr 2628°C22°C31°C 201816°C 200564%
Apr 2728°C22°C32°C 201816°C 200565%
Apr 2828°C22°C30°C 199816°C 201664%
Apr 2928°C22°C30°C 199516°C 201663%
Apr 3028°C22°C31°C 201818°C 201663%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Rio Branco, in percent.0204060801001102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-5).

April 1
sunrise 5:35 AM, sunset 5:35 PM
April 30
sunrise 5:36 AM, sunset 5:21 PM

Every day of April: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.