Santa Helena Weather in March
Average highs run from 30°C on March 1 to 30°C on March 31, and lows from 23°C to 23°C. Normal precipitation for the month is 394 mm over about 28 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
- 30°C
- Average low
- 23°C
- Precipitation
- 394 mm
- Reanalysis high
- 36°CMar 21, 2015
- Reanalysis low
- 20°CMar 3, 2018
- Daylight
- 12 h 09 min to 12 h 05 min
- Cloud cover
- 83%
- Humidity
- 90%
- Dew point
- 24°C
- Wind
- 4.3 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 | 30°C | 23°C | 34°C 2010 | 22°C 2011 | 90% |
| Mar 2 | 30°C | 23°C | 35°C 2010 | 21°C 2018 | 90% |
| Mar 3 | 30°C | 23°C | 35°C 2010 | 20°C 2018 | 91% |
| Mar 4 | 30°C | 23°C | 35°C 2010 | 22°C 2012 | 91% |
| Mar 5 | 30°C | 23°C | 35°C 2010 | 22°C 1997 | 91% |
| Mar 6 | 30°C | 23°C | 35°C 2010 | 22°C 1995 | 92% |
| Mar 7 | 30°C | 23°C | 35°C 2010 | 21°C 1994 | 93% |
| Mar 8 | 30°C | 23°C | 35°C 2010 | 22°C 1999 | 93% |
| Mar 9 | 30°C | 23°C | 35°C 2010 | 22°C 1993 | 93% |
| Mar 10 | 30°C | 23°C | 34°C 2010 | 22°C 2007 | 93% |
| Mar 11 | 30°C | 23°C | 32°C 2005 | 22°C 2011 | 94% |
| Mar 12 | 30°C | 23°C | 35°C 2010 | 22°C 2006 | 94% |
| Mar 13 | 30°C | 23°C | 33°C 2013 | 22°C 2011 | 94% |
| Mar 14 | 30°C | 23°C | 34°C 2010 | 22°C 2001 | 94% |
| Mar 15 | 30°C | 23°C | 34°C 2010 | 22°C 2011 | 94% |
| Mar 16 | 30°C | 23°C | 34°C 2010 | 22°C 2007 | 94% |
| Mar 17 | 30°C | 23°C | 33°C 2013 | 22°C 2008 | 94% |
| Mar 18 | 30°C | 23°C | 34°C 2010 | 22°C 2012 | 95% |
| Mar 19 | 30°C | 23°C | 34°C 2010 | 22°C 1996 | 95% |
| Mar 20 | 30°C | 23°C | 34°C 2010 | 22°C 2003 | 96% |
| Mar 21 | 30°C | 23°C | 36°C 2015 | 22°C 1992 | 96% |
| Mar 22 | 30°C | 23°C | 32°C 2007 | 22°C 1997 | 96% |
| Mar 23 | 30°C | 23°C | 33°C 2020 | 22°C 1991 | 96% |
| Mar 24 | 30°C | 23°C | 32°C 2020 | 22°C 2002 | 96% |
| Mar 25 | 30°C | 23°C | 32°C 2020 | 22°C 2001 | 97% |
| Mar 26 | 30°C | 23°C | 32°C 2015 | 22°C 2015 | 97% |
| Mar 27 | 30°C | 23°C | 32°C 2013 | 22°C 2018 | 97% |
| Mar 28 | 30°C | 23°C | 32°C 2013 | 22°C 1991 | 97% |
| Mar 29 | 30°C | 23°C | 33°C 2010 | 22°C 1996 | 98% |
| Mar 30 | 30°C | 23°C | 32°C 2010 | 22°C 2000 | 98% |
| Mar 31 | 30°C | 23°C | 33°C 2020 | 22°C 1997 | 98% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- March 1
- sunrise 6:09 AM, sunset 6:18 PM
- March 31
- sunrise 6:03 AM, sunset 6:08 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.