Santa Rosa de Osos Weather in September
Average highs run from 20°C on September 1 to 20°C on September 30, and lows from 13°C to 13°C. Normal precipitation for the month is 228 mm over about 27 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 20°C
- Average low
- 13°C
- Precipitation
- 228 mm
- Record high
- 34°CSep 29, 1961
- Record low
- 11°CSep 18, 1981
- Daylight
- 12 h 14 min to 12 h 04 min
- Cloud cover
- 82%
- Humidity
- 89%
- Dew point
- 14°C
- Wind
- 3.2 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 | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 20°C | 13°C | 33°C 1962 | 15°C 1958 | 86% |
| Sep 2 | 20°C | 13°C | 32°C 1963 | 13°C 1963 | 87% |
| Sep 3 | 20°C | 13°C | 32°C 1982 | 14°C 1958 | 87% |
| Sep 4 | 20°C | 13°C | 31°C 1958 | 13°C 1963 | 87% |
| Sep 5 | 20°C | 13°C | 31°C 1958 | 14°C 1961 | 87% |
| Sep 6 | 20°C | 13°C | 31°C 1961 | 14°C 1978 | 86% |
| Sep 7 | 20°C | 13°C | 31°C 1962 | 12°C 1958 | 87% |
| Sep 8 | 20°C | 13°C | 32°C 1980 | 13°C 1961 | 87% |
| Sep 9 | 20°C | 13°C | 32°C 1958 | 14°C 1961 | 87% |
| Sep 10 | 20°C | 13°C | 32°C 1977 | 14°C 1962 | 88% |
| Sep 11 | 20°C | 13°C | 31°C 1976 | 15°C 1958 | 88% |
| Sep 12 | 20°C | 13°C | 32°C 1958 | 13°C 1964 | 89% |
| Sep 13 | 20°C | 13°C | 31°C 1965 | 14°C 1961 | 90% |
| Sep 14 | 20°C | 13°C | 31°C 1965 | 15°C 1961 | 90% |
| Sep 15 | 20°C | 13°C | 31°C 1964 | 15°C 1985 | 89% |
| Sep 16 | 20°C | 13°C | 31°C 1958 | 13°C 1961 | 89% |
| Sep 17 | 20°C | 13°C | 30°C 1958 | 13°C 1958 | 89% |
| Sep 18 | 20°C | 13°C | 31°C 1976 | 11°C 1981 | 89% |
| Sep 19 | 20°C | 13°C | 31°C 1976 | 15°C 1961 | 90% |
| Sep 20 | 20°C | 13°C | 30°C 1958 | 11°C 1991 | 89% |
| Sep 21 | 20°C | 13°C | 30°C 1965 | 14°C 1963 | 89% |
| Sep 22 | 20°C | 13°C | 32°C 1961 | 12°C 1961 | 88% |
| Sep 23 | 20°C | 13°C | 32°C 1961 | 13°C 1961 | 88% |
| Sep 24 | 20°C | 13°C | 31°C 1981 | 13°C 1961 | 88% |
| Sep 25 | 20°C | 13°C | 32°C 1962 | 14°C 1967 | 87% |
| Sep 26 | 20°C | 13°C | 30°C 1980 | 14°C 1961 | 86% |
| Sep 27 | 20°C | 13°C | 32°C 1961 | 14°C 1961 | 86% |
| Sep 28 | 20°C | 13°C | 30°C 1962 | 16°C 1974 | 86% |
| Sep 29 | 20°C | 13°C | 34°C 1961 | 13°C 1961 | 86% |
| Sep 30 | 20°C | 13°C | 30°C 1958 | 13°C 1961 | 85% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-5).
- September 1
- sunrise 5:55 AM, sunset 6:09 PM
- September 30
- sunrise 5:50 AM, sunset 5:54 PM
Other months
Sources
Records: NOAA GHCN-Daily, station COM00080110, every year on file, quality-flagged values removed. 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.