Rio Weather in January
Average highs run from 75°F on January 1 to 75°F on January 31, and lows from 57°F to 56°F. Normal precipitation for the month is 3.01 in over about 9 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 74°F
- Average low
- 56°F
- Precipitation
- 3.01 in
- Record high
- 89°FJan 3, 1942
- Record low
- 23°FJan 22, 1985
- Chance of a freeze
- 10%
- Daylight
- 10 h 28 min to 10 h 55 min
- Cloud cover
- 62%
- Humidity
- 77%
- Dew point
- 61°F
- Wind
- 12.1 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 |
|---|---|---|---|---|---|
| Jan 1 | 75°F | 57°F | 86°F 2023 | 41°F 1981 | 31% |
| Jan 2 | 74°F | 57°F | 88°F 1997 | 39°F 1980 | 31% |
| Jan 3 | 74°F | 57°F | 89°F 1942 | 31°F 1979 | 31% |
| Jan 4 | 74°F | 56°F | 88°F 1942 | 34°F 2001 | 31% |
| Jan 5 | 74°F | 56°F | 88°F 2020 | 36°F 2010 | 30% |
| Jan 6 | 74°F | 56°F | 87°F 1997 | 34°F 2010 | 30% |
| Jan 7 | 74°F | 56°F | 87°F 1997 | 35°F 2010 | 30% |
| Jan 8 | 74°F | 56°F | 87°F 1990 | 32°F 1970 | 30% |
| Jan 9 | 74°F | 56°F | 87°F 2007 | 30°F 1958 | 30% |
| Jan 10 | 74°F | 56°F | 85°F 1954 | 28°F 1970 | 30% |
| Jan 11 | 74°F | 55°F | 86°F 1939 | 33°F 2010 | 29% |
| Jan 12 | 74°F | 55°F | 87°F 1947 | 28°F 1982 | 29% |
| Jan 13 | 74°F | 55°F | 88°F 1939 | 31°F 1981 | 29% |
| Jan 14 | 74°F | 55°F | 87°F 1940 | 32°F 1964 | 29% |
| Jan 15 | 74°F | 55°F | 88°F 1947 | 31°F 1948 | 28% |
| Jan 16 | 74°F | 55°F | 88°F 1947 | 35°F 1978 | 28% |
| Jan 17 | 74°F | 55°F | 85°F 1943 | 30°F 1983 | 28% |
| Jan 18 | 74°F | 55°F | 86°F 1960 | 30°F 1965 | 28% |
| Jan 19 | 74°F | 55°F | 88°F 1946 | 30°F 1958 | 28% |
| Jan 20 | 74°F | 55°F | 85°F 1975 | 26°F 1977 | 27% |
| Jan 21 | 74°F | 55°F | 86°F 2002 | 24°F 1985 | 27% |
| Jan 22 | 74°F | 55°F | 85°F 1938 | 23°F 1985 | 27% |
| Jan 23 | 74°F | 55°F | 87°F 1953 | 33°F 1961 | 27% |
| Jan 24 | 74°F | 56°F | 84°F 1939 | 34°F 2003 | 27% |
| Jan 25 | 74°F | 56°F | 85°F 1937 | 37°F 1987 | 27% |
| Jan 26 | 74°F | 56°F | 88°F 1937 | 34°F 1968 | 27% |
| Jan 27 | 75°F | 56°F | 88°F 1948 | 31°F 1940 | 26% |
| Jan 28 | 75°F | 56°F | 85°F 1937 | 27°F 1986 | 26% |
| Jan 29 | 75°F | 56°F | 85°F 1972 | 32°F 1978 | 26% |
| Jan 30 | 75°F | 56°F | 85°F 1947 | 34°F 1978 | 26% |
| Jan 31 | 75°F | 56°F | 89°F 1991 | 26°F 1966 | 26% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:11 AM, sunset 5:39 PM
- January 31
- sunrise 7:07 AM, sunset 6:02 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00088620 (Stuart), public domain. Records: NOAA GHCN-Daily, station USC00088620, 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.