Darien Weather in September
Average highs run from 24°C on September 1 to 23°C on September 30, and lows from 14°C to 15°C. Normal precipitation for the month is 117 mm over about 21 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
- 24°C
- Average low
- 14°C
- Precipitation
- 117 mm
- Record high
- 36°CSep 29, 2015
- Record low
- 14°CSep 30, 1976
- Daylight
- 12 h 11 min to 12 h 05 min
- Cloud cover
- 86%
- Humidity
- 82%
- Dew point
- 15°C
- Wind
- 4.7 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 | 24°C | 14°C | 35°C 2014 | 16°C 1965 | 60% |
| Sep 2 | 24°C | 14°C | 35°C 1963 | 15°C 1989 | 60% |
| Sep 3 | 24°C | 14°C | 35°C 1962 | 15°C 1962 | 60% |
| Sep 4 | 24°C | 14°C | 36°C 1963 | 16°C 1981 | 61% |
| Sep 5 | 24°C | 14°C | 34°C 1997 | 15°C 1965 | 61% |
| Sep 6 | 24°C | 14°C | 34°C 1994 | 16°C 1970 | 62% |
| Sep 7 | 24°C | 14°C | 36°C 2024 | 15°C 2001 | 62% |
| Sep 8 | 24°C | 14°C | 35°C 2012 | 16°C 1974 | 63% |
| Sep 9 | 24°C | 14°C | 35°C 2019 | 16°C 1993 | 65% |
| Sep 10 | 24°C | 14°C | 35°C 1961 | 16°C 1961 | 66% |
| Sep 11 | 24°C | 14°C | 36°C 1961 | 15°C 1978 | 66% |
| Sep 12 | 24°C | 14°C | 34°C 1961 | 16°C 1970 | 68% |
| Sep 13 | 24°C | 14°C | 35°C 2023 | 16°C 1962 | 68% |
| Sep 14 | 24°C | 14°C | 34°C 1961 | 16°C 2012 | 69% |
| Sep 15 | 24°C | 14°C | 36°C 2015 | 16°C 1963 | 69% |
| Sep 16 | 24°C | 15°C | 35°C 2012 | 16°C 1986 | 70% |
| Sep 17 | 24°C | 15°C | 35°C 1976 | 15°C 1976 | 69% |
| Sep 18 | 24°C | 15°C | 34°C 1994 | 17°C 1981 | 69% |
| Sep 19 | 24°C | 15°C | 34°C 2005 | 16°C 1965 | 70% |
| Sep 20 | 24°C | 15°C | 34°C 1962 | 15°C 1964 | 70% |
| Sep 21 | 24°C | 15°C | 33°C 1997 | 16°C 2012 | 70% |
| Sep 22 | 24°C | 15°C | 33°C 1996 | 16°C 1964 | 71% |
| Sep 23 | 24°C | 15°C | 35°C 2015 | 16°C 2000 | 72% |
| Sep 24 | 24°C | 15°C | 34°C 1963 | 15°C 1967 | 71% |
| Sep 25 | 24°C | 15°C | 35°C 1962 | 16°C 1966 | 70% |
| Sep 26 | 24°C | 15°C | 36°C 1961 | 17°C 2012 | 70% |
| Sep 27 | 24°C | 15°C | 36°C 1962 | 17°C 1961 | 69% |
| Sep 28 | 24°C | 15°C | 35°C 2006 | 16°C 1995 | 70% |
| Sep 29 | 23°C | 15°C | 36°C 2015 | 15°C 1965 | 71% |
| Sep 30 | 23°C | 15°C | 35°C 2014 | 14°C 1976 | 71% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-5).
- September 1
- sunrise 6:00 AM, sunset 6:11 PM
- September 30
- sunrise 5:53 AM, sunset 5:58 PM
Other months
Sources
Records: NOAA GHCN-Daily, station CO000080259, 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.