São Mateus do Maranhão Weather in October
Average highs run from 39°C on October 1 to 38°C on October 31, and lows from 25°C to 25°C. Normal precipitation for the month is 25 mm over about 6 wet days.
October day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
October at a glance
- Average high
- 39°C
- Average low
- 25°C
- Precipitation
- 25 mm
- Reanalysis high
- 42°COct 24, 2012
- Reanalysis low
- 22°COct 11, 2006
- Daylight
- 12 h 09 min to 12 h 15 min
- Cloud cover
- 46%
- Humidity
- 53%
- 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 |
|---|---|---|---|---|---|
| Oct 1 | 39°C | 25°C | 40°C 1997 | 23°C 2006 | 18% |
| Oct 2 | 39°C | 25°C | 41°C 1997 | 23°C 1991 | 18% |
| Oct 3 | 39°C | 25°C | 40°C 1998 | 23°C 1996 | 18% |
| Oct 4 | 39°C | 25°C | 41°C 2020 | 23°C 1996 | 18% |
| Oct 5 | 39°C | 25°C | 41°C 2015 | 23°C 1996 | 18% |
| Oct 6 | 39°C | 25°C | 40°C 2001 | 22°C 1999 | 17% |
| Oct 7 | 39°C | 25°C | 40°C 1998 | 23°C 1999 | 17% |
| Oct 8 | 39°C | 25°C | 41°C 2020 | 23°C 2006 | 18% |
| Oct 9 | 39°C | 25°C | 40°C 2016 | 22°C 1994 | 19% |
| Oct 10 | 39°C | 25°C | 40°C 2015 | 23°C 1994 | 19% |
| Oct 11 | 39°C | 25°C | 40°C 2020 | 22°C 2006 | 19% |
| Oct 12 | 39°C | 25°C | 40°C 2019 | 23°C 2004 | 18% |
| Oct 13 | 39°C | 25°C | 40°C 1997 | 23°C 2004 | 18% |
| Oct 14 | 39°C | 25°C | 41°C 2015 | 24°C 2005 | 18% |
| Oct 15 | 39°C | 25°C | 41°C 1997 | 23°C 2005 | 18% |
| Oct 16 | 39°C | 25°C | 41°C 2015 | 23°C 1996 | 18% |
| Oct 17 | 39°C | 25°C | 41°C 1997 | 24°C 1995 | 17% |
| Oct 18 | 39°C | 25°C | 40°C 2015 | 23°C 1996 | 18% |
| Oct 19 | 39°C | 25°C | 41°C 2018 | 24°C 1992 | 18% |
| Oct 20 | 39°C | 25°C | 40°C 2018 | 24°C 2006 | 19% |
| Oct 21 | 39°C | 25°C | 41°C 2020 | 23°C 1997 | 19% |
| Oct 22 | 39°C | 25°C | 41°C 2015 | 23°C 1997 | 19% |
| Oct 23 | 39°C | 25°C | 41°C 2015 | 22°C 2011 | 18% |
| Oct 24 | 38°C | 25°C | 42°C 2012 | 23°C 2011 | 18% |
| Oct 25 | 38°C | 25°C | 41°C 2018 | 23°C 1997 | 19% |
| Oct 26 | 38°C | 25°C | 41°C 2017 | 23°C 2011 | 19% |
| Oct 27 | 38°C | 25°C | 41°C 2019 | 23°C 2010 | 20% |
| Oct 28 | 38°C | 25°C | 41°C 2017 | 23°C 1999 | 20% |
| Oct 29 | 38°C | 25°C | 41°C 2017 | 23°C 1993 | 21% |
| Oct 30 | 38°C | 25°C | 41°C 1998 | 23°C 1999 | 22% |
| Oct 31 | 38°C | 25°C | 41°C 2012 | 24°C 2006 | 22% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- October 1
- sunrise 5:43 AM, sunset 5:52 PM
- October 31
- sunrise 5:34 AM, sunset 5:49 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.