Rio Negro Weather in March
Average highs run from 31°C on March 1 to 31°C on March 31, and lows from 22°C to 21°C. Normal precipitation for the month is 133 mm over about 19 wet days.
March day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
March at a glance
- Average high
- 31°C
- Average low
- 22°C
- Precipitation
- 133 mm
- Reanalysis high
- 40°CMar 14, 2020
- Reanalysis low
- 15°CMar 29, 2013
- Daylight
- 12 h 28 min to 11 h 54 min
- Cloud cover
- 64%
- Humidity
- 76%
- Dew point
- 21°C
- Wind
- 9.0 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 |
|---|---|---|---|---|---|
| Mar 1 | 31°C | 22°C | 36°C 2005 | 20°C 2020 | 67% |
| Mar 2 | 31°C | 22°C | 37°C 2014 | 20°C 2020 | 66% |
| Mar 3 | 31°C | 22°C | 38°C 2009 | 20°C 1994 | 65% |
| Mar 4 | 31°C | 22°C | 38°C 2009 | 20°C 2008 | 64% |
| Mar 5 | 32°C | 22°C | 38°C 2009 | 20°C 1994 | 62% |
| Mar 6 | 32°C | 22°C | 39°C 2009 | 18°C 1994 | 60% |
| Mar 7 | 32°C | 22°C | 37°C 2009 | 17°C 1994 | 60% |
| Mar 8 | 32°C | 22°C | 38°C 2020 | 18°C 2010 | 60% |
| Mar 9 | 32°C | 22°C | 39°C 2020 | 19°C 2010 | 59% |
| Mar 10 | 32°C | 22°C | 38°C 2020 | 19°C 1994 | 58% |
| Mar 11 | 32°C | 22°C | 38°C 2020 | 19°C 2016 | 58% |
| Mar 12 | 32°C | 22°C | 38°C 2020 | 18°C 2016 | 61% |
| Mar 13 | 32°C | 22°C | 39°C 2020 | 16°C 2016 | 62% |
| Mar 14 | 32°C | 22°C | 40°C 2020 | 20°C 1995 | 62% |
| Mar 15 | 32°C | 22°C | 38°C 2020 | 19°C 1995 | 62% |
| Mar 16 | 32°C | 22°C | 36°C 2020 | 19°C 2008 | 62% |
| Mar 17 | 31°C | 22°C | 39°C 2020 | 19°C 2008 | 62% |
| Mar 18 | 31°C | 22°C | 39°C 2020 | 19°C 2008 | 62% |
| Mar 19 | 31°C | 22°C | 36°C 2016 | 18°C 2007 | 62% |
| Mar 20 | 31°C | 22°C | 36°C 2018 | 17°C 2007 | 63% |
| Mar 21 | 31°C | 22°C | 36°C 2016 | 17°C 2007 | 63% |
| Mar 22 | 31°C | 22°C | 36°C 2016 | 19°C 2003 | 62% |
| Mar 23 | 31°C | 22°C | 37°C 2020 | 19°C 2015 | 61% |
| Mar 24 | 31°C | 22°C | 37°C 2020 | 18°C 2004 | 61% |
| Mar 25 | 31°C | 22°C | 36°C 2020 | 18°C 2004 | 60% |
| Mar 26 | 31°C | 22°C | 36°C 2020 | 18°C 2004 | 58% |
| Mar 27 | 31°C | 22°C | 36°C 2020 | 18°C 1991 | 56% |
| Mar 28 | 31°C | 22°C | 36°C 2020 | 15°C 2013 | 54% |
| Mar 29 | 31°C | 21°C | 36°C 2004 | 15°C 2013 | 53% |
| Mar 30 | 31°C | 21°C | 36°C 2004 | 18°C 1991 | 51% |
| Mar 31 | 31°C | 21°C | 36°C 2004 | 16°C 1997 | 51% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- March 1
- sunrise 5:38 AM, sunset 6:06 PM
- March 31
- sunrise 5:47 AM, sunset 5:41 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.