Hoi An Weather in September
Average highs run from 30°C on September 1 to 28°C on September 30, and lows from 28°C to 27°C. Normal precipitation for the month is 406 mm over about 25 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
- 29°C
- Average low
- 28°C
- Precipitation
- 406 mm
- Record high
- 42°CSep 30, 2023
- Record low
- 20°CSep 4, 2004
- Daylight
- 12 h 26 min to 12 h 01 min
- Cloud cover
- 77%
- Humidity
- 82%
- Dew point
- 25°C
- Wind
- 14.8 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 | 30°C | 28°C | 37°C 1974 | 24°C 1994 | 81% |
| Sep 2 | 30°C | 28°C | 35°C 2007 | 23°C 1975 | 83% |
| Sep 3 | 30°C | 28°C | 36°C 1973 | 24°C 2008 | 84% |
| Sep 4 | 30°C | 28°C | 38°C 1988 | 20°C 2004 | 85% |
| Sep 5 | 29°C | 28°C | 37°C 2024 | 24°C 2014 | 85% |
| Sep 6 | 29°C | 28°C | 36°C 1986 | 22°C 1975 | 86% |
| Sep 7 | 29°C | 28°C | 37°C 1985 | 24°C 1993 | 85% |
| Sep 8 | 29°C | 28°C | 39°C 2024 | 23°C 1994 | 85% |
| Sep 9 | 29°C | 28°C | 37°C 2024 | 23°C 1975 | 85% |
| Sep 10 | 29°C | 28°C | 36°C 1976 | 23°C 2009 | 85% |
| Sep 11 | 29°C | 28°C | 36°C 1989 | 21°C 2004 | 85% |
| Sep 12 | 29°C | 28°C | 35°C 1990 | 20°C 1975 | 86% |
| Sep 13 | 29°C | 28°C | 35°C 2014 | 23°C 2006 | 85% |
| Sep 14 | 29°C | 28°C | 35°C 2002 | 23°C 1974 | 86% |
| Sep 15 | 29°C | 28°C | 35°C 1999 | 21°C 2000 | 86% |
| Sep 16 | 29°C | 28°C | 37°C 2005 | 22°C 2000 | 85% |
| Sep 17 | 29°C | 28°C | 38°C 1974 | 23°C 1974 | 84% |
| Sep 18 | 29°C | 28°C | 40°C 2002 | 22°C 1985 | 83% |
| Sep 19 | 29°C | 28°C | 36°C 2014 | 22°C 1991 | 83% |
| Sep 20 | 29°C | 28°C | 37°C 2014 | 22°C 1986 | 82% |
| Sep 21 | 29°C | 28°C | 36°C 2010 | 21°C 1986 | 82% |
| Sep 22 | 29°C | 28°C | 33°C 2010 | 23°C 1983 | 83% |
| Sep 23 | 29°C | 28°C | 34°C 2000 | 23°C 1986 | 82% |
| Sep 24 | 29°C | 28°C | 36°C 2008 | 23°C 1995 | 82% |
| Sep 25 | 29°C | 28°C | 33°C 2005 | 23°C 2006 | 83% |
| Sep 26 | 29°C | 28°C | 34°C 1975 | 23°C 2011 | 83% |
| Sep 27 | 29°C | 28°C | 34°C 2023 | 23°C 1997 | 84% |
| Sep 28 | 29°C | 28°C | 34°C 1993 | 22°C 1999 | 84% |
| Sep 29 | 28°C | 28°C | 34°C 1974 | 23°C 2004 | 84% |
| Sep 30 | 28°C | 27°C | 42°C 2023 | 22°C 1985 | 83% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- September 1
- sunrise 5:34 AM, sunset 6:00 PM
- September 30
- sunrise 5:36 AM, sunset 5:37 PM
Other months
Sources
Records: NOAA GHCN-Daily, station VMM00048855, 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 2026-09-27. Sun and moon: computed with the NOAA solar equations and Meeus.