September is one of the cooler months of the year in Kingston South East, with average highs near 16.2°C and lows around 8.2°C (mean 12.2°C). It is about average for rainfall, averaging 53 mm of rainfall and 77% relative humidity across the period.
September is one of the cooler months of the year in Kingston South East. Across 45 years of records, the warmest September in Kingston South East was 2023 — when the month averaged 14.4°C — while the coldest was 1992 at 10.3°C. Typical September days reach 16.2°C with nights near 8.2°C. The long-term trend is warming, about 0.3°C per decade.
September is about average for rainfall in Kingston South East, averaging 53 mm of rainfall. The wettest September on record was 1996 with 113 mm, while the driest was 2018 at 13 mm.
Relative humidity in Kingston South East during September averages 77%. The most humid September was 2013 at 82%, and the least humid was 2023 at 68%.
September receives about 4.5 kWh/m²/day of solar energy in Kingston South East. The sunniest September was 2023 at 5.1 kWh/m²/day, and the cloudiest were 2010 and 2016 at 3.8.
Average wind speed in Kingston South East during September is 3.9 m/s. The windiest September was 1996 at 5.1 m/s, while the calmest was 1997 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.7°C | 11.8°C | 12.3°C | 12.5°C | 13.1°C | +1.4°C |
| Avg High | 15.7°C | 15.7°C | 16.3°C | 16.6°C | 17.4°C | +1.7°C |
| Avg Low | 7.8°C | 7.9°C | 8.3°C | 8.3°C | 8.8°C | +1°C |
| Avg Rain | 55 mm | 70 mm | 61 mm | 37 mm | 34 mm | -20 mm |
September temperatures in Kingston South East have risen by about 1.6°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 1.8°C (1994) to a record high of 28.1°C (2023).
Rainfall in September is about average for rainfall, averaging 53 mm, with a wettest year of 113 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.4°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Kingston South East
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Kingston South East. That said, September — with days averaging 16.2°C and nights around 8.2°C (mean 12.2°C) and moderate rainfall (53 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.7°C | 12.8°C | 8.9°C | 23.0°C | 3.2°C | 34 mm | 74% | 4.4 m/s | 4.5 |
| 2024 | 17.0°C | 13.4°C | 9.7°C | 22.9°C | 4.3°C | 35 mm | 72% | 4.5 m/s | 4.2 |
| 2023 🔥 | 19.5°C | 14.4°C | 9.3°C | 28.1°C | 5.7°C | 20 mm | 68% | 3.8 m/s | 5.1 |
| 2022 | 16.1°C | 12.1°C | 8.0°C | 20.9°C | 4.1°C | 49 mm | 78% | 3.7 m/s | 4.1 |
| 2021 | 17.3°C | 13.0°C | 8.7°C | 26.7°C | 3.6°C | 21 mm | 71% | 4.3 m/s | 4.4 |
| 2020 | 17.5°C | 12.9°C | 8.4°C | 24.4°C | 3.5°C | 47 mm | 73% | 4.2 m/s | 4.4 |
| 2019 | 17.2°C | 12.4°C | 7.7°C | 25.7°C | 3.3°C | 26 mm | 71% | 3.6 m/s | 4.7 |
| 2018 | 16.6°C | 12.1°C | 7.6°C | 24.0°C | 3.8°C | 13 mm | 69% | 3.8 m/s | 4.8 |
| 2017 | 16.8°C | 13.0°C | 9.1°C | 25.8°C | 4.7°C | 24 mm | 69% | 4.8 m/s | 4.5 |
| 2016 | 15.6°C | 11.9°C | 8.1°C | 22.3°C | 4.3°C | 55 mm | 78% | 3.7 m/s | 3.8 |
| 2015 | 17.5°C | 12.7°C | 7.9°C | 26.4°C | 5.1°C | 16 mm | 71% | 3.3 m/s | 4.6 |
| 2014 | 17.3°C | 12.8°C | 8.3°C | 23.6°C | 4.4°C | 29 mm | 74% | 3.7 m/s | 5 |
| 2013 | 17.6°C | 13.8°C | 9.9°C | 22.3°C | 7.6°C | 56 mm | 82% | 4 m/s | 3.9 |
| 2012 | 16.0°C | 12.0°C | 8.1°C | 21.7°C | 4.7°C | 37 mm | 77% | 4 m/s | 4.5 |
| 2011 | 16.6°C | 12.5°C | 8.5°C | 23.9°C | 4.3°C | 56 mm | 76% | 3.8 m/s | 4.5 |
| 2010 | 14.5°C | 11.3°C | 8.1°C | 16.8°C | 4.3°C | 61 mm | 80% | 3.6 m/s | 3.8 |
| 2009 | 16.2°C | 12.5°C | 8.8°C | 22.3°C | 5.0°C | 82 mm | 76% | 4.3 m/s | 4.2 |
| 2008 | 16.5°C | 12.0°C | 7.6°C | 24.0°C | 2.8°C | 39 mm | 75% | 4 m/s | 4.8 |
| 2007 | 17.0°C | 12.7°C | 8.5°C | 22.8°C | 3.3°C | 48 mm | 73% | 4.5 m/s | 4.7 |
| 2006 | 17.3°C | 12.6°C | 8.0°C | 24.0°C | 3.9°C | 44 mm | 70% | 4 m/s | 4.7 |
| 2005 | 16.5°C | 12.7°C | 8.8°C | 23.0°C | 4.4°C | 48 mm | 76% | 3.6 m/s | 4.6 |
| 2004 | 15.5°C | 11.7°C | 7.9°C | 23.1°C | 3.6°C | 54 mm | 82% | 3.2 m/s | 4.2 |
| 2003 | 15.0°C | 11.2°C | 7.4°C | 20.5°C | 2.7°C | 52 mm | 78% | 4.9 m/s | 4.5 |
| 2002 | 15.7°C | 12.1°C | 8.5°C | 24.4°C | 4.7°C | 59 mm | 73% | 4.6 m/s | 4.5 |
| 2001 | 17.1°C | 12.9°C | 8.7°C | 23.1°C | 4.7°C | 88 mm | 79% | 3.8 m/s | 4.3 |
| 2000 | 15.9°C | 12.6°C | 9.3°C | 19.9°C | 5.6°C | 94 mm | 82% | 4.6 m/s | 4 |
| 1999 | 17.5°C | 13.0°C | 8.5°C | 26.4°C | 4.8°C | 66 mm | 76% | 3.5 m/s | 4.5 |
| 1998 | 16.8°C | 12.8°C | 8.7°C | 21.9°C | 4.2°C | 76 mm | 78% | 3.8 m/s | 4.4 |
| 1997 | 16.2°C | 11.8°C | 7.3°C | 19.2°C | 4.2°C | 74 mm | 82% | 3 m/s | 4.6 |
| 1996 🌧️ | 14.6°C | 11.5°C | 8.4°C | 20.7°C | 4.0°C | 113 mm | 78% | 5.1 m/s | 4.4 |
| 1995 | 15.5°C | 11.5°C | 7.4°C | 20.6°C | 2.1°C | 33 mm | 80% | 3.6 m/s | 4.3 |
| 1994 | 14.6°C | 11.0°C | 7.4°C | 20.3°C | 1.8°C | 32 mm | 76% | 3.9 m/s | 4.6 |
| 1993 | 16.5°C | 11.9°C | 7.4°C | 23.3°C | 4.0°C | 68 mm | 78% | 3.4 m/s | 4.7 |
| 1992 ❄️ | 13.5°C | 10.3°C | 7.0°C | 16.7°C | 4.5°C | 103 mm | 82% | 3.3 m/s | 4.1 |
| 1991 | 15.6°C | 12.0°C | 8.3°C | 19.4°C | 4.7°C | 74 mm | 81% | 4 m/s | 4.4 |
| 1990 | 16.4°C | 12.4°C | 8.3°C | 21.9°C | 5.4°C | 63 mm | 79% | 3.9 m/s | 4.7 |
| 1989 | 15.6°C | 11.6°C | 7.7°C | 21.8°C | 6.1°C | 53 mm | 82% | 3.8 m/s | 4.6 |
| 1988 | 16.5°C | 12.4°C | 8.2°C | 22.6°C | 5.1°C | 77 mm | 80% | 3.9 m/s | 4.6 |
| 1987 | 16.5°C | 12.5°C | 8.6°C | 26.8°C | 5.2°C | 19 mm | 77% | 3.5 m/s | 4.5 |
| 1986 | 15.3°C | 11.6°C | 8.0°C | 21.4°C | 4.2°C | 64 mm | 81% | 4 m/s | 4.5 |
| 1985 | 15.5°C | 11.2°C | 6.9°C | 21.6°C | 4.9°C | 29 mm | 77% | 3.6 m/s | 4.7 |
| 1984 | 14.1°C | 10.4°C | 6.8°C | 19.8°C | 2.2°C | 83 mm | 79% | 4 m/s | 4.2 |
| 1983 | 15.5°C | 11.7°C | 7.9°C | 22.3°C | 3.1°C | 92 mm | 80% | 4.3 m/s | — |
| 1982 | 16.0°C | 11.6°C | 7.1°C | 22.4°C | 3.6°C | 37 mm | 72% | 3.8 m/s | — |
| 1981 | 16.4°C | 12.7°C | 8.9°C | 23.1°C | 5.5°C | 37 mm | 80% | 3.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 16.2°C with lows near 8.2°C (mean 12.2°C), based on 45 years of NASA POWER data.
September averages 53 mm of rainfall in Kingston South East, about average for rainfall. The wettest on record was 113 mm in 1996.
The hottest September reached 28.1°C in 2023. The coldest dipped to 1.8°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.6°C. Daytime highs moved from 15.5°C to 17.3°C and overnight lows from 7.5°C to 8.9°C over the same span.
September is one of the cooler months of the year in Kingston South East and about average for rainfall, so plan for around 16.2°C daytime highs and 8.2°C at night.
Not quite — September is the 4th coolest month in Kingston South East, averaging 12.2°C.
For September in Kingston South East, pack light layers you can adjust through the day, with typical highs of 16.2°C and lows of 8.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 77% — quite humid.
Average wind speed in September is 3.9 m/s. The windiest September on record averaged 5.1 m/s (1996).
The wettest September on record was 1996 with 113 mm. On average, September sees 53 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Kingston South East behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
