São Mateus do Maranhão Weather in August
Average highs run from 34°C on August 1 to 37°C on August 31, and lows from 22°C to 24°C. Normal precipitation for the month is 9 mm over about 3 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 36°C
- Average low
- 23°C
- Precipitation
- 9 mm
- Reanalysis high
- 40°CAug 22, 2016
- Reanalysis low
- 18°CAug 3, 2001
- Daylight
- 11 h 57 min to 12 h 02 min
- Cloud cover
- 29%
- Humidity
- 61%
- Dew point
- 20°C
- Wind
- 7.6 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 |
|---|---|---|---|---|---|
| Aug 1 | 34°C | 22°C | 37°C 2016 | 19°C 1999 | 9% |
| Aug 2 | 34°C | 22°C | 38°C 2016 | 19°C 2001 | 9% |
| Aug 3 | 34°C | 22°C | 38°C 2012 | 18°C 2001 | 9% |
| Aug 4 | 34°C | 22°C | 38°C 2012 | 20°C 2009 | 9% |
| Aug 5 | 34°C | 22°C | 38°C 2018 | 19°C 2001 | 9% |
| Aug 6 | 34°C | 22°C | 39°C 2018 | 20°C 2001 | 9% |
| Aug 7 | 35°C | 22°C | 38°C 2016 | 18°C 2001 | 9% |
| Aug 8 | 35°C | 22°C | 38°C 2016 | 18°C 2001 | 9% |
| Aug 9 | 35°C | 23°C | 39°C 2016 | 20°C 2011 | 9% |
| Aug 10 | 35°C | 23°C | 38°C 2016 | 20°C 2009 | 8% |
| Aug 11 | 35°C | 23°C | 38°C 2016 | 20°C 2008 | 9% |
| Aug 12 | 35°C | 23°C | 38°C 2018 | 20°C 2001 | 9% |
| Aug 13 | 35°C | 23°C | 38°C 2018 | 21°C 1995 | 9% |
| Aug 14 | 36°C | 23°C | 38°C 2017 | 20°C 2009 | 8% |
| Aug 15 | 36°C | 23°C | 38°C 2018 | 20°C 2009 | 8% |
| Aug 16 | 36°C | 23°C | 39°C 2016 | 21°C 2000 | 7% |
| Aug 17 | 36°C | 23°C | 40°C 2016 | 19°C 2000 | 7% |
| Aug 18 | 36°C | 23°C | 39°C 2016 | 20°C 2000 | 6% |
| Aug 19 | 36°C | 23°C | 39°C 2015 | 21°C 2000 | 6% |
| Aug 20 | 36°C | 23°C | 39°C 2016 | 20°C 2003 | 6% |
| Aug 21 | 36°C | 23°C | 39°C 2020 | 20°C 2003 | 7% |
| Aug 22 | 36°C | 23°C | 40°C 2016 | 21°C 2003 | 8% |
| Aug 23 | 37°C | 23°C | 38°C 2014 | 21°C 2000 | 8% |
| Aug 24 | 37°C | 23°C | 39°C 2015 | 21°C 1995 | 8% |
| Aug 25 | 37°C | 24°C | 39°C 2016 | 21°C 2002 | 8% |
| Aug 26 | 37°C | 24°C | 40°C 2020 | 21°C 2008 | 7% |
| Aug 27 | 37°C | 24°C | 39°C 2015 | 21°C 2008 | 7% |
| Aug 28 | 37°C | 24°C | 39°C 2012 | 21°C 2000 | 7% |
| Aug 29 | 37°C | 24°C | 39°C 2020 | 22°C 2000 | 8% |
| Aug 30 | 37°C | 24°C | 39°C 2020 | 22°C 2000 | 9% |
| Aug 31 | 37°C | 24°C | 39°C 2020 | 22°C 2009 | 10% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- August 1
- sunrise 6:06 AM, sunset 6:03 PM
- August 31
- sunrise 5:57 AM, sunset 5:59 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.