Santarém Weather in October
Average highs run from 35°C on October 1 to 35°C on October 31, and lows from 26°C to 27°C. Normal precipitation for the month is 40 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
- 35°C
- Average low
- 27°C
- Precipitation
- 40 mm
- Reanalysis high
- 39°COct 22, 2015
- Reanalysis low
- 24°COct 22, 1994
- Daylight
- 12 h 07 min to 12 h 12 min
- Cloud cover
- 66%
- Humidity
- 62%
- Dew point
- 22°C
- Wind
- 6.5 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 | 35°C | 26°C | 38°C 1997 | 24°C 1994 | 21% |
| Oct 2 | 35°C | 26°C | 38°C 2017 | 24°C 2000 | 22% |
| Oct 3 | 35°C | 26°C | 38°C 1997 | 24°C 2000 | 23% |
| Oct 4 | 35°C | 26°C | 39°C 1997 | 24°C 2000 | 23% |
| Oct 5 | 35°C | 27°C | 39°C 2015 | 24°C 2000 | 23% |
| Oct 6 | 35°C | 27°C | 38°C 1998 | 25°C 2007 | 22% |
| Oct 7 | 35°C | 27°C | 37°C 2015 | 24°C 1994 | 22% |
| Oct 8 | 35°C | 27°C | 38°C 1998 | 24°C 1994 | 21% |
| Oct 9 | 35°C | 27°C | 39°C 1998 | 25°C 1994 | 22% |
| Oct 10 | 35°C | 27°C | 38°C 1995 | 24°C 1994 | 23% |
| Oct 11 | 35°C | 27°C | 37°C 2015 | 24°C 1994 | 23% |
| Oct 12 | 35°C | 27°C | 37°C 1992 | 24°C 1994 | 23% |
| Oct 13 | 35°C | 27°C | 38°C 1997 | 24°C 1994 | 24% |
| Oct 14 | 35°C | 27°C | 39°C 1997 | 24°C 1994 | 24% |
| Oct 15 | 35°C | 27°C | 38°C 2018 | 25°C 1999 | 24% |
| Oct 16 | 35°C | 27°C | 39°C 1997 | 24°C 1999 | 24% |
| Oct 17 | 35°C | 27°C | 39°C 1997 | 24°C 1994 | 24% |
| Oct 18 | 35°C | 27°C | 38°C 2015 | 24°C 1994 | 24% |
| Oct 19 | 35°C | 27°C | 37°C 2015 | 24°C 1994 | 24% |
| Oct 20 | 35°C | 27°C | 38°C 1998 | 25°C 2008 | 24% |
| Oct 21 | 35°C | 27°C | 38°C 2015 | 25°C 1994 | 24% |
| Oct 22 | 35°C | 27°C | 39°C 2015 | 24°C 1994 | 25% |
| Oct 23 | 35°C | 27°C | 38°C 2015 | 24°C 2011 | 26% |
| Oct 24 | 35°C | 27°C | 38°C 2018 | 24°C 2014 | 27% |
| Oct 25 | 35°C | 27°C | 38°C 1997 | 24°C 1999 | 27% |
| Oct 26 | 35°C | 27°C | 38°C 1997 | 24°C 2001 | 27% |
| Oct 27 | 35°C | 27°C | 38°C 2018 | 25°C 2004 | 27% |
| Oct 28 | 35°C | 27°C | 39°C 2018 | 25°C 2004 | 27% |
| Oct 29 | 35°C | 27°C | 39°C 1997 | 25°C 1994 | 29% |
| Oct 30 | 35°C | 27°C | 39°C 1997 | 25°C 1993 | 29% |
| Oct 31 | 35°C | 27°C | 38°C 1997 | 25°C 2011 | 29% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- October 1
- sunrise 6:25 AM, sunset 6:32 PM
- October 31
- sunrise 6:16 AM, sunset 6:28 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.