Rio Negro Weather in April
Average highs run from 31°C on April 1 to 31°C on April 30, and lows from 21°C to 19°C. Normal precipitation for the month is 75 mm over about 10 wet days.
April day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
April at a glance
- Average high
- 32°C
- Average low
- 20°C
- Precipitation
- 75 mm
- Reanalysis high
- 38°CApr 6, 2014
- Reanalysis low
- 7°CApr 18, 1999
- Daylight
- 11 h 53 min to 11 h 24 min
- Cloud cover
- 49%
- Humidity
- 71%
- Dew point
- 19°C
- Wind
- 10.4 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Apr 1 | 31°C | 21°C | 38°C 2020 | 17°C 1997 | 49% |
| Apr 2 | 32°C | 21°C | 38°C 2020 | 16°C 1995 | 47% |
| Apr 3 | 32°C | 21°C | 36°C 2014 | 15°C 1995 | 45% |
| Apr 4 | 32°C | 21°C | 36°C 2020 | 16°C 1995 | 42% |
| Apr 5 | 32°C | 21°C | 38°C 2020 | 15°C 2008 | 40% |
| Apr 6 | 32°C | 21°C | 38°C 2014 | 16°C 1997 | 40% |
| Apr 7 | 32°C | 21°C | 36°C 2014 | 14°C 1994 | 38% |
| Apr 8 | 32°C | 21°C | 36°C 2005 | 11°C 1994 | 38% |
| Apr 9 | 32°C | 21°C | 37°C 2005 | 13°C 1994 | 38% |
| Apr 10 | 32°C | 21°C | 37°C 2005 | 15°C 2010 | 38% |
| Apr 11 | 32°C | 21°C | 36°C 2016 | 16°C 2003 | 37% |
| Apr 12 | 32°C | 21°C | 36°C 2005 | 12°C 2003 | 37% |
| Apr 13 | 31°C | 20°C | 38°C 2020 | 10°C 2003 | 36% |
| Apr 14 | 31°C | 20°C | 37°C 2005 | 12°C 2003 | 34% |
| Apr 15 | 31°C | 20°C | 37°C 2005 | 11°C 1992 | 34% |
| Apr 16 | 31°C | 20°C | 37°C 2005 | 12°C 1992 | 32% |
| Apr 17 | 31°C | 20°C | 38°C 2005 | 8°C 1999 | 32% |
| Apr 18 | 31°C | 20°C | 37°C 2005 | 7°C 1999 | 32% |
| Apr 19 | 31°C | 20°C | 37°C 2005 | 9°C 1999 | 32% |
| Apr 20 | 31°C | 20°C | 36°C 2016 | 14°C 2000 | 30% |
| Apr 21 | 31°C | 20°C | 37°C 2016 | 12°C 2000 | 29% |
| Apr 22 | 31°C | 20°C | 36°C 2016 | 12°C 2000 | 28% |
| Apr 23 | 31°C | 20°C | 37°C 2016 | 14°C 2000 | 27% |
| Apr 24 | 31°C | 20°C | 36°C 2020 | 15°C 2000 | 25% |
| Apr 25 | 31°C | 20°C | 36°C 2020 | 16°C 1999 | 22% |
| Apr 26 | 31°C | 20°C | 37°C 2020 | 12°C 2016 | 22% |
| Apr 27 | 31°C | 19°C | 36°C 2020 | 10°C 2016 | 21% |
| Apr 28 | 31°C | 19°C | 36°C 2020 | 9°C 2016 | 22% |
| Apr 29 | 31°C | 19°C | 36°C 2018 | 11°C 2016 | 22% |
| Apr 30 | 31°C | 19°C | 36°C 2018 | 10°C 2016 | 20% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- April 1
- sunrise 5:47 AM, sunset 5:40 PM
- April 30
- sunrise 5:55 AM, sunset 5:19 PM
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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.