Key Biscayne Weather in October
Average highs run from 89°F on October 1 to 85°F on October 31, and lows from 78°F to 74°F. Normal precipitation for the month is 6.33 in over about 13 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 87°F
- Average low
- 76°F
- Precipitation
- 6.33 in
- Record high
- 95°FOct 1, 1980
- Record low
- 53°FOct 21, 1989
- Chance of a freeze
- 0%
- Days of 90°F or more
- 3.1
- Daylight
- 11 h 54 min to 11 h 12 min
- Cloud cover
- 56%
- Humidity
- 76%
- Dew point
- 73°F
- Wind
- 12.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Oct 1 | 89°F | 78°F | 95°F 1980 | 70°F 1955 | 48% |
| Oct 2 | 89°F | 78°F | 94°F 1989 | 64°F 1976 | 48% |
| Oct 3 | 89°F | 78°F | 94°F 2014 | 66°F 1976 | 48% |
| Oct 4 | 89°F | 78°F | 93°F 1988 | 67°F 1984 | 47% |
| Oct 5 | 89°F | 78°F | 93°F 2000 | 68°F 1987 | 47% |
| Oct 6 | 89°F | 78°F | 92°F 1986 | 68°F 1992 | 46% |
| Oct 7 | 89°F | 77°F | 93°F 2009 | 68°F 1964 | 46% |
| Oct 8 | 88°F | 77°F | 93°F 2009 | 65°F 1979 | 45% |
| Oct 9 | 88°F | 77°F | 91°F 1981 | 66°F 1972 | 45% |
| Oct 10 | 88°F | 77°F | 92°F 1992 | 67°F 1963 | 44% |
| Oct 11 | 88°F | 77°F | 92°F 2009 | 66°F 1951 | 44% |
| Oct 12 | 88°F | 77°F | 93°F 2023 | 68°F 1963 | 44% |
| Oct 13 | 88°F | 77°F | 95°F 2023 | 62°F 1977 | 43% |
| Oct 14 | 88°F | 77°F | 92°F 1982 | 58°F 1977 | 43% |
| Oct 15 | 88°F | 77°F | 91°F 1954 | 62°F 1977 | 42% |
| Oct 16 | 87°F | 76°F | 94°F 2009 | 60°F 1955 | 42% |
| Oct 17 | 87°F | 76°F | 92°F 2009 | 59°F 1977 | 41% |
| Oct 18 | 87°F | 76°F | 90°F 1989 | 60°F 2009 | 40% |
| Oct 19 | 87°F | 76°F | 92°F 1989 | 59°F 2009 | 40% |
| Oct 20 | 87°F | 76°F | 92°F 2019 | 56°F 1989 | 39% |
| Oct 21 | 87°F | 76°F | 91°F 2018 | 53°F 1989 | 39% |
| Oct 22 | 86°F | 75°F | 90°F 2019 | 57°F 1961 | 38% |
| Oct 23 | 86°F | 75°F | 91°F 2006 | 59°F 1961 | 38% |
| Oct 24 | 86°F | 75°F | 92°F 1990 | 60°F 2006 | 37% |
| Oct 25 | 86°F | 75°F | 89°F 2002 | 58°F 2005 | 37% |
| Oct 26 | 86°F | 75°F | 89°F 2002 | 56°F 1990 | 36% |
| Oct 27 | 86°F | 74°F | 90°F 1997 | 58°F 1957 | 36% |
| Oct 28 | 85°F | 74°F | 90°F 1995 | 54°F 1957 | 35% |
| Oct 29 | 85°F | 74°F | 90°F 2010 | 55°F 2008 | 35% |
| Oct 30 | 85°F | 74°F | 92°F 2002 | 56°F 1953 | 34% |
| Oct 31 | 85°F | 74°F | 91°F 2002 | 56°F 2012 | 34% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- October 1
- sunrise 7:13 AM, sunset 7:07 PM
- October 31
- sunrise 7:28 AM, sunset 6:40 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00081306 (Cape Florida), public domain. Records: NOAA GHCN-Daily, station USW00012839, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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.