Kahului Weather in September
Average highs run from 90°F on September 1 to 90°F on September 30, and lows from 72°F to 71°F. Normal precipitation for the month is 0.45 in over about 5 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 90°F
- Average low
- 71°F
- Precipitation
- 0.45 in
- Record high
- 97°FSep 16, 2019
- Record low
- 59°FSep 15, 2009
- Chance of a freeze
- 0%
- Days of 90°F or more
- 9.9
- Daylight
- 12 h 31 min to 11 h 57 min
- Cloud cover
- 47%
- Humidity
- 78%
- Dew point
- 70°F
- Wind
- 14.3 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 |
|---|---|---|---|---|---|
| Sep 1 | 90°F | 72°F | 95°F 1968 | 63°F 1983 | 21% |
| Sep 2 | 90°F | 72°F | 93°F 1997 | 62°F 1983 | 20% |
| Sep 3 | 90°F | 72°F | 94°F 2005 | 65°F 2002 | 20% |
| Sep 4 | 90°F | 72°F | 93°F 2016 | 63°F 2023 | 20% |
| Sep 5 | 90°F | 72°F | 94°F 2020 | 61°F 1975 | 20% |
| Sep 6 | 90°F | 72°F | 93°F 1980 | 60°F 1975 | 20% |
| Sep 7 | 90°F | 72°F | 94°F 2004 | 61°F 1969 | 19% |
| Sep 8 | 90°F | 71°F | 93°F 1977 | 62°F 1972 | 19% |
| Sep 9 | 90°F | 71°F | 93°F 1979 | 62°F 1955 | 19% |
| Sep 10 | 90°F | 71°F | 94°F 2025 | 61°F 1985 | 19% |
| Sep 11 | 90°F | 71°F | 95°F 1992 | 61°F 2011 | 19% |
| Sep 12 | 90°F | 71°F | 94°F 2015 | 62°F 1985 | 18% |
| Sep 13 | 90°F | 71°F | 93°F 1977 | 62°F 1985 | 18% |
| Sep 14 | 90°F | 71°F | 96°F 1997 | 62°F 2002 | 18% |
| Sep 15 | 90°F | 71°F | 95°F 2022 | 59°F 2009 | 18% |
| Sep 16 | 90°F | 71°F | 97°F 2019 | 62°F 2009 | 18% |
| Sep 17 | 90°F | 71°F | 95°F 2019 | 64°F 2006 | 18% |
| Sep 18 | 90°F | 71°F | 96°F 2019 | 63°F 1998 | 18% |
| Sep 19 | 90°F | 71°F | 96°F 1995 | 62°F 1973 | 18% |
| Sep 20 | 90°F | 71°F | 95°F 2014 | 63°F 1984 | 18% |
| Sep 21 | 90°F | 71°F | 93°F 1977 | 61°F 1975 | 17% |
| Sep 22 | 90°F | 71°F | 94°F 2019 | 60°F 1975 | 17% |
| Sep 23 | 90°F | 71°F | 96°F 2022 | 63°F 2000 | 17% |
| Sep 24 | 90°F | 71°F | 95°F 2019 | 62°F 2006 | 17% |
| Sep 25 | 90°F | 71°F | 95°F 2022 | 60°F 2011 | 17% |
| Sep 26 | 90°F | 71°F | 92°F 1985 | 61°F 1967 | 17% |
| Sep 27 | 90°F | 71°F | 93°F 1972 | 60°F 1975 | 17% |
| Sep 28 | 90°F | 71°F | 93°F 2019 | 63°F 1965 | 18% |
| Sep 29 | 90°F | 71°F | 93°F 1996 | 63°F 1974 | 18% |
| Sep 30 | 90°F | 71°F | 94°F 2022 | 62°F 1962 | 18% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (HST).
- September 1
- sunrise 6:10 AM, sunset 6:41 PM
- September 30
- sunrise 6:17 AM, sunset 6:14 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00022516 (Kahului AP), public domain. Records: NOAA GHCN-Daily, station USW00022516, 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.