Montego Bay Weather in September
Average highs run from 34°C on September 1 to 33°C on September 30, and lows from 25°C to 24°C. Normal precipitation for the month is 195 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
- 33°C
- Average low
- 24°C
- Precipitation
- 195 mm
- Record high
- 36°CSep 1, 2016
- Record low
- 20°CSep 5, 1983
- Daylight
- 12 h 29 min to 11 h 59 min
- Cloud cover
- 66%
- Humidity
- 76%
- Dew point
- 24°C
- Wind
- 15.1 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 | 34°C | 25°C | 36°C 2016 | 22°C 1984 | 86% |
| Sep 2 | 34°C | 25°C | 36°C 2016 | 22°C 1983 | 87% |
| Sep 3 | 33°C | 25°C | 35°C 2012 | 22°C 1974 | 87% |
| Sep 4 | 33°C | 24°C | 35°C 2023 | 22°C 1986 | 87% |
| Sep 5 | 33°C | 25°C | 35°C 1995 | 20°C 1983 | 86% |
| Sep 6 | 33°C | 25°C | 35°C 2024 | 20°C 1983 | 86% |
| Sep 7 | 33°C | 24°C | 35°C 2023 | 22°C 1980 | 85% |
| Sep 8 | 33°C | 24°C | 35°C 2017 | 20°C 1994 | 86% |
| Sep 9 | 33°C | 25°C | 35°C 2017 | 22°C 1980 | 87% |
| Sep 10 | 33°C | 24°C | 35°C 2017 | 22°C 1984 | 87% |
| Sep 11 | 34°C | 24°C | 35°C 2024 | 22°C 1984 | 87% |
| Sep 12 | 34°C | 24°C | 35°C 2024 | 21°C 2000 | 88% |
| Sep 13 | 33°C | 25°C | 35°C 2023 | 21°C 1980 | 88% |
| Sep 14 | 33°C | 24°C | 35°C 2023 | 20°C 2000 | 89% |
| Sep 15 | 33°C | 24°C | 35°C 2019 | 20°C 2000 | 89% |
| Sep 16 | 33°C | 24°C | 35°C 2023 | 21°C 1993 | 89% |
| Sep 17 | 33°C | 25°C | 35°C 2024 | 22°C 2007 | 88% |
| Sep 18 | 33°C | 24°C | 36°C 2019 | 22°C 1979 | 88% |
| Sep 19 | 33°C | 24°C | 36°C 2019 | 22°C 1978 | 88% |
| Sep 20 | 33°C | 24°C | 36°C 2019 | 22°C 1979 | 90% |
| Sep 21 | 33°C | 24°C | 36°C 2019 | 22°C 1990 | 90% |
| Sep 22 | 33°C | 25°C | 35°C 2018 | 22°C 1990 | 91% |
| Sep 23 | 33°C | 24°C | 36°C 2023 | 22°C 1977 | 92% |
| Sep 24 | 33°C | 25°C | 36°C 2023 | 22°C 1977 | 92% |
| Sep 25 | 33°C | 24°C | 36°C 2023 | 21°C 2000 | 92% |
| Sep 26 | 33°C | 24°C | 35°C 2023 | 23°C 1986 | 92% |
| Sep 27 | 33°C | 24°C | 35°C 1997 | 22°C 1984 | 92% |
| Sep 28 | 33°C | 24°C | 36°C 1997 | 21°C 1975 | 92% |
| Sep 29 | 33°C | 24°C | 35°C 2023 | 20°C 1985 | 92% |
| Sep 30 | 33°C | 24°C | 36°C 2019 | 20°C 1985 | 92% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- September 1
- sunrise 5:57 AM, sunset 6:26 PM
- September 30
- sunrise 6:02 AM, sunset 6:01 PM
Other months
Sources
Records: NOAA GHCN-Daily, station JM000078388, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.