September is one of the warmer months of the year in Winter Garden, with average highs near 30°C and lows around 22.5°C (mean 26.3°C). It is a relatively wet time of year, averaging 160 mm of rainfall and 84% relative humidity across the period.
September is one of the warmer months of the year in Winter Garden. Across 45 years of records, the warmest September in Winter Garden was 2023 — when the month averaged 27.8°C — while the coldest was 2001 at 24.6°C. Typical September days reach 30°C with nights near 22.5°C. The long-term trend is warming, about 0.3°C per decade.
September is a relatively wet time of year in Winter Garden, averaging 160 mm of rainfall. The wettest September on record was 2004 with 388 mm, while the driest was 2008 at 58 mm.
Relative humidity in Winter Garden during September averages 84%. The most humid September was 2004 at 89%, and the least humid was 1990 at 76%.
September receives about 4.9 kWh/m²/day of solar energy in Winter Garden. The sunniest September was 2019 at 5.5 kWh/m²/day, and the cloudiest was 1998 at 4.1.
Average wind speed in Winter Garden during September is 2 m/s. The windiest September was 2004 at 3.9 m/s, while the calmest were 1987 and 2021 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.6°C | 26.2°C | 26.1°C | 26.6°C | 27.1°C | +1.5°C |
| Avg High | 29.3°C | 29.9°C | 29.7°C | 30.4°C | 31.0°C | +1.7°C |
| Avg Low | 22.0°C | 22.4°C | 22.5°C | 22.7°C | 23.2°C | +1.2°C |
| Avg Rain | 162 mm | 152 mm | 165 mm | 149 mm | 176 mm | +14 mm |
September temperatures in Winter Garden have risen by about 2.1°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 12.9°C (1981) to a record high of 34.8°C (2023).
Rainfall in September is a relatively wet time of year, averaging 160 mm, with a wettest year of 388 mm.
A good time to visit Winter Garden
September is a good time to visit Winter Garden, with days averaging 30°C and nights around 22.5°C (mean 26.3°C, warmer than Winter Garden's yearly average) and higher rainfall. April and October are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.5°C | 27.2°C | 22.8°C | 34.1°C | 19.2°C | 103 mm | 80% | 2 m/s | 4.9 |
| 2024 | 31.4°C | 27.7°C | 24.1°C | 33.2°C | 21.9°C | 174 mm | 85% | 2 m/s | 4.6 |
| 2023 🔥 | 32.5°C | 27.8°C | 23.2°C | 34.8°C | 18.5°C | 146 mm | 76% | 1.7 m/s | 5.3 |
| 2022 | 30.1°C | 26.5°C | 22.8°C | 33.5°C | 14.9°C | 312 mm | 86% | 2 m/s | 4.6 |
| 2021 | 30.5°C | 26.7°C | 22.9°C | 32.6°C | 19.9°C | 142 mm | 82% | 1.5 m/s | 5 |
| 2020 | 30.2°C | 26.8°C | 23.3°C | 33.9°C | 15.9°C | 179 mm | 85% | 2.2 m/s | 4.7 |
| 2019 | 31.4°C | 27.0°C | 22.6°C | 33.4°C | 19.3°C | 70 mm | 79% | 2.7 m/s | 5.5 |
| 2018 | 30.8°C | 27.2°C | 23.6°C | 32.4°C | 22.2°C | 88 mm | 85% | 1.7 m/s | 5.2 |
| 2017 | 29.8°C | 26.3°C | 22.9°C | 31.5°C | 20.7°C | 309 mm | 86% | 2.2 m/s | 4.9 |
| 2016 | 30.4°C | 26.7°C | 23.0°C | 32.0°C | 20.0°C | 182 mm | 85% | 1.8 m/s | 4.9 |
| 2015 | 29.6°C | 26.2°C | 22.9°C | 31.9°C | 18.4°C | 134 mm | 87% | 1.6 m/s | 4.7 |
| 2014 | 30.1°C | 26.4°C | 22.7°C | 34.0°C | 20.5°C | 235 mm | 83% | 1.6 m/s | 4.5 |
| 2013 | 30.3°C | 26.4°C | 22.4°C | 32.6°C | 19.4°C | 138 mm | 82% | 1.9 m/s | 5.1 |
| 2012 | 29.5°C | 25.6°C | 21.8°C | 31.6°C | 16.6°C | 109 mm | 85% | 1.8 m/s | 5 |
| 2011 | 30.8°C | 26.7°C | 22.5°C | 33.3°C | 20.3°C | 120 mm | 80% | 1.6 m/s | 5.3 |
| 2010 | 31.3°C | 27.0°C | 22.6°C | 33.8°C | 19.6°C | 103 mm | 78% | 2.1 m/s | 5.3 |
| 2009 | 29.7°C | 26.1°C | 22.5°C | 31.4°C | 15.5°C | 128 mm | 86% | 1.8 m/s | 5 |
| 2008 | 29.5°C | 25.9°C | 22.2°C | 31.7°C | 16.4°C | 58 mm | 86% | 2.4 m/s | 5.2 |
| 2007 | 30.3°C | 26.7°C | 23.0°C | 32.1°C | 20.6°C | 152 mm | 83% | 2.1 m/s | 4.8 |
| 2006 | 30.4°C | 26.2°C | 21.9°C | 32.0°C | 17.1°C | 132 mm | 80% | 1.7 m/s | 5.3 |
| 2005 | 31.3°C | 27.1°C | 22.9°C | 33.9°C | 19.8°C | 78 mm | 79% | 2.5 m/s | 5 |
| 2004 🌧️ | 29.0°C | 26.1°C | 23.2°C | 31.1°C | 19.5°C | 388 mm | 89% | 3.9 m/s | 4.5 |
| 2003 | 28.8°C | 25.4°C | 21.9°C | 30.9°C | 17.8°C | 121 mm | 88% | 2 m/s | 4.8 |
| 2002 | 30.1°C | 26.7°C | 23.3°C | 31.6°C | 21.9°C | 143 mm | 88% | 2.1 m/s | 4.8 |
| 2001 ❄️ | 27.8°C | 24.6°C | 21.4°C | 30.3°C | 15.5°C | 294 mm | 88% | 2 m/s | 4.4 |
| 2000 | 30.1°C | 26.4°C | 22.8°C | 32.4°C | 19.4°C | 159 mm | 84% | 2.4 m/s | 4.7 |
| 1999 | 30.0°C | 26.0°C | 22.1°C | 33.7°C | 17.4°C | 160 mm | 82% | 2.4 m/s | 4.8 |
| 1998 | 29.5°C | 26.4°C | 23.3°C | 33.9°C | 19.4°C | 263 mm | 86% | 2.6 m/s | 4.1 |
| 1997 | 30.8°C | 26.5°C | 22.3°C | 33.9°C | 19.5°C | 143 mm | 79% | 2.1 m/s | 5.2 |
| 1996 | 31.0°C | 26.7°C | 22.3°C | 32.9°C | 17.1°C | 114 mm | 78% | 1.9 m/s | 5.1 |
| 1995 | 29.8°C | 26.2°C | 22.6°C | 31.2°C | 19.8°C | 132 mm | 86% | 1.7 m/s | 5.2 |
| 1994 | 28.3°C | 25.2°C | 22.1°C | 31.3°C | 18.8°C | 245 mm | 88% | 1.8 m/s | 4.5 |
| 1993 | 29.9°C | 26.3°C | 22.6°C | 32.1°C | 16.6°C | 135 mm | 83% | 1.7 m/s | 4.9 |
| 1992 | 28.8°C | 25.7°C | 22.5°C | 31.2°C | 18.9°C | 152 mm | 88% | 1.9 m/s | 4.7 |
| 1991 | 29.7°C | 25.9°C | 22.1°C | 31.5°C | 14.7°C | 95 mm | 85% | 2.3 m/s | 5.3 |
| 1990 | 31.5°C | 27.0°C | 22.5°C | 34.7°C | 16.7°C | 82 mm | 76% | 2 m/s | 5.1 |
| 1989 | 30.1°C | 26.4°C | 22.8°C | 32.3°C | 20.0°C | 175 mm | 84% | 1.9 m/s | 5.1 |
| 1988 | 29.5°C | 26.2°C | 22.9°C | 31.3°C | 19.4°C | 232 mm | 87% | 2.3 m/s | 4.7 |
| 1987 | 30.4°C | 26.5°C | 22.7°C | 33.2°C | 19.8°C | 170 mm | 79% | 1.5 m/s | 4.5 |
| 1986 | 30.0°C | 26.1°C | 22.2°C | 32.0°C | 20.4°C | 96 mm | 83% | 1.7 m/s | 5.2 |
| 1985 | 28.5°C | 25.1°C | 21.7°C | 31.0°C | 19.2°C | 152 mm | 87% | 2.5 m/s | 4.9 |
| 1984 | 29.2°C | 25.3°C | 21.4°C | 32.5°C | 17.7°C | 121 mm | 80% | 2.9 m/s | 4.9 |
| 1983 | 28.3°C | 25.0°C | 21.6°C | 31.0°C | 16.5°C | 155 mm | 86% | 2 m/s | — |
| 1982 | 28.7°C | 25.2°C | 21.7°C | 32.5°C | 16.8°C | 235 mm | 87% | 1.9 m/s | — |
| 1981 | 29.0°C | 25.0°C | 21.0°C | 31.3°C | 12.9°C | 125 mm | 83% | 1.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30°C with lows near 22.5°C (mean 26.3°C), based on 45 years of NASA POWER data.
September averages 160 mm of rainfall in Winter Garden, a relatively wet time of year. The wettest on record was 388 mm in 2004.
The hottest September reached 34.8°C in 2023. The coldest dipped to 12.9°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 2.1°C. Daytime highs moved from 28.7°C to 31.2°C and overnight lows from 21.5°C to 23.2°C over the same span.
September is one of the warmer months of the year in Winter Garden and a relatively wet time of year, so plan for around 30°C daytime highs and 22.5°C at night.
Not quite — September is the 9th coolest month in Winter Garden, averaging 26.3°C.
For September in Winter Garden, pack light, breathable clothing and sun protection, with typical highs of 30°C and lows of 22.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 84% — quite humid.
Average wind speed in September is 2 m/s. The windiest September on record averaged 3.9 m/s (2004).
The wettest September on record was 2004 with 388 mm. On average, September sees 160 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 Winter Garden 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.
