September is one of the warmer months of the year in Spring Hill, with average highs near 29.5°C and lows around 23.6°C (mean 26.6°C). It is a relatively wet time of year, averaging 169 mm of rainfall and 82% relative humidity across the period.
September is one of the warmer months of the year in Spring Hill. Across 45 years of records, the warmest Septembers in Spring Hill were 2023 and 2024 — when the month averaged 27.9°C — while the coldest was 2001 at 24.9°C. Typical September days reach 29.5°C with nights near 23.6°C. The long-term trend is warming, about 0.3°C per decade.
September is a relatively wet time of year in Spring Hill, averaging 169 mm of rainfall. The wettest September on record was 2004 with 455 mm, while the driest was 2008 at 54 mm.
Relative humidity in Spring Hill during September averages 82%. The most humid September was 2004 at 88%, and the least humid was 2023 at 75%.
September receives about 5 kWh/m²/day of solar energy in Spring Hill. The sunniest September was 2019 at 5.8 kWh/m²/day, and the cloudiest was 1998 at 4.1.
Average wind speed in Spring Hill during September is 2.5 m/s. The windiest September was 2004 at 4.5 m/s, while the calmest was 2021 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 26.6°C | 26.4°C | 26.8°C | 27.3°C | +1.3°C |
| Avg High | 29.0°C | 29.6°C | 29.2°C | 29.8°C | 30.4°C | +1.4°C |
| Avg Low | 23.0°C | 23.5°C | 23.5°C | 23.8°C | 24.1°C | +1.1°C |
| Avg Rain | 176 mm | 146 mm | 192 mm | 166 mm | 160 mm | -16 mm |
September temperatures in Spring Hill have risen by about 1.9°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 14.8°C (1981) to a record high of 33.4°C (1997).
Rainfall in September is a relatively wet time of year, averaging 169 mm, with a wettest year of 455 mm.
A good time to visit Spring Hill
September is a good time to visit Spring Hill, with days averaging 29.5°C and nights around 23.6°C (mean 26.6°C, warmer than Spring Hill'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 | 31.1°C | 27.3°C | 23.6°C | 33.0°C | 20.4°C | 60 mm | 78% | 2.4 m/s | 5.2 |
| 2024 | 30.8°C | 27.9°C | 25.0°C | 32.8°C | 22.7°C | 201 mm | 83% | 2.4 m/s | 4.7 |
| 2023 🔥 | 31.7°C | 27.9°C | 24.1°C | 33.0°C | 20.5°C | 110 mm | 75% | 2.1 m/s | 5.4 |
| 2022 | 29.6°C | 26.6°C | 23.7°C | 32.8°C | 17.0°C | 218 mm | 85% | 2.5 m/s | 4.6 |
| 2021 | 29.5°C | 26.8°C | 24.1°C | 31.0°C | 20.9°C | 197 mm | 82% | 1.8 m/s | 4.9 |
| 2020 | 29.9°C | 27.0°C | 24.1°C | 33.4°C | 16.9°C | 175 mm | 84% | 2.8 m/s | 4.7 |
| 2019 | 30.7°C | 27.3°C | 23.8°C | 32.7°C | 19.7°C | 55 mm | 80% | 3 m/s | 5.8 |
| 2018 | 30.6°C | 27.7°C | 24.8°C | 32.1°C | 23.3°C | 119 mm | 83% | 2.2 m/s | 5.6 |
| 2017 | 29.4°C | 26.6°C | 23.8°C | 31.5°C | 21.9°C | 270 mm | 84% | 2.5 m/s | 5.1 |
| 2016 | 29.9°C | 27.0°C | 24.2°C | 31.4°C | 20.8°C | 196 mm | 84% | 2.3 m/s | 5.2 |
| 2015 | 29.0°C | 26.5°C | 23.9°C | 30.7°C | 19.4°C | 148 mm | 86% | 2.2 m/s | 4.6 |
| 2014 | 29.6°C | 26.6°C | 23.7°C | 33.0°C | 20.6°C | 280 mm | 82% | 1.9 m/s | 4.4 |
| 2013 | 29.8°C | 26.7°C | 23.5°C | 31.3°C | 20.3°C | 193 mm | 82% | 2.5 m/s | 5.4 |
| 2012 | 29.2°C | 26.1°C | 23.1°C | 31.1°C | 17.5°C | 118 mm | 83% | 2.3 m/s | 5.2 |
| 2011 | 29.7°C | 26.6°C | 23.6°C | 31.2°C | 21.3°C | 175 mm | 81% | 2 m/s | 5.1 |
| 2010 | 30.4°C | 27.0°C | 23.6°C | 32.5°C | 20.8°C | 107 mm | 79% | 2.5 m/s | 5.4 |
| 2009 | 29.4°C | 26.5°C | 23.6°C | 30.9°C | 18.0°C | 152 mm | 85% | 2.4 m/s | 5.1 |
| 2008 | 29.4°C | 26.3°C | 23.2°C | 31.3°C | 17.6°C | 54 mm | 83% | 3 m/s | 5.3 |
| 2007 | 29.8°C | 26.9°C | 24.0°C | 31.5°C | 21.2°C | 140 mm | 83% | 2.7 m/s | 5.2 |
| 2006 | 29.4°C | 26.3°C | 23.3°C | 31.1°C | 19.9°C | 172 mm | 79% | 2 m/s | 5.1 |
| 2005 | 30.7°C | 27.3°C | 23.9°C | 32.8°C | 21.4°C | 67 mm | 79% | 3 m/s | 5.2 |
| 2004 🌧️ | 28.7°C | 26.4°C | 24.0°C | 31.1°C | 20.7°C | 455 mm | 88% | 4.5 m/s | 4.6 |
| 2003 | 28.4°C | 25.7°C | 23.0°C | 30.2°C | 19.3°C | 141 mm | 86% | 2.6 m/s | 4.9 |
| 2002 | 29.7°C | 27.0°C | 24.2°C | 31.1°C | 22.9°C | 178 mm | 87% | 2.8 m/s | 4.9 |
| 2001 ❄️ | 27.5°C | 24.9°C | 22.4°C | 29.8°C | 16.3°C | 306 mm | 86% | 2.6 m/s | 4.6 |
| 2000 | 29.2°C | 26.4°C | 23.7°C | 31.3°C | 19.7°C | 260 mm | 85% | 2.9 m/s | 4.7 |
| 1999 | 29.2°C | 26.2°C | 23.2°C | 32.4°C | 17.9°C | 127 mm | 81% | 2.9 m/s | 5 |
| 1998 | 28.8°C | 26.5°C | 24.1°C | 31.8°C | 20.6°C | 354 mm | 87% | 3.3 m/s | 4.1 |
| 1997 | 30.7°C | 27.2°C | 23.7°C | 33.4°C | 20.8°C | 173 mm | 75% | 2.3 m/s | 5.3 |
| 1996 | 30.7°C | 27.1°C | 23.5°C | 32.1°C | 17.9°C | 96 mm | 76% | 2.4 m/s | 5.2 |
| 1995 | 29.8°C | 26.8°C | 23.7°C | 31.3°C | 21.5°C | 104 mm | 82% | 2.1 m/s | 5.2 |
| 1994 | 28.2°C | 25.7°C | 23.1°C | 31.3°C | 20.1°C | 191 mm | 86% | 2.5 m/s | 4.7 |
| 1993 | 29.6°C | 26.7°C | 23.8°C | 31.2°C | 17.9°C | 119 mm | 81% | 2.2 m/s | 5.3 |
| 1992 | 28.8°C | 26.2°C | 23.6°C | 30.7°C | 19.9°C | 131 mm | 85% | 2.4 m/s | 4.9 |
| 1991 | 29.6°C | 26.4°C | 23.2°C | 31.3°C | 17.9°C | 78 mm | 83% | 2.8 m/s | 5.5 |
| 1990 | 30.5°C | 27.0°C | 23.6°C | 33.2°C | 17.5°C | 87 mm | 76% | 2.4 m/s | 5.3 |
| 1989 | 29.7°C | 26.7°C | 23.7°C | 31.5°C | 21.2°C | 170 mm | 83% | 2.4 m/s | 5 |
| 1988 | 29.2°C | 26.6°C | 24.0°C | 31.0°C | 20.7°C | 320 mm | 86% | 2.8 m/s | 4.7 |
| 1987 | 30.0°C | 27.0°C | 23.9°C | 32.3°C | 21.3°C | 131 mm | 77% | 1.9 m/s | 4.5 |
| 1986 | 29.5°C | 26.5°C | 23.4°C | 31.0°C | 21.3°C | 113 mm | 82% | 2.2 m/s | 5.4 |
| 1985 | 28.3°C | 25.4°C | 22.5°C | 30.3°C | 19.3°C | 119 mm | 85% | 3.1 m/s | 5.2 |
| 1984 | 28.9°C | 25.6°C | 22.4°C | 31.5°C | 19.9°C | 129 mm | 80% | 3.3 m/s | 5.1 |
| 1983 | 27.9°C | 25.2°C | 22.5°C | 30.6°C | 17.0°C | 215 mm | 85% | 2.7 m/s | — |
| 1982 | 28.4°C | 25.5°C | 22.7°C | 31.2°C | 18.6°C | 270 mm | 85% | 2.4 m/s | — |
| 1981 | 28.7°C | 25.5°C | 22.2°C | 30.9°C | 14.8°C | 119 mm | 81% | 2.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.5°C with lows near 23.6°C (mean 26.6°C), based on 45 years of NASA POWER data.
September averages 169 mm of rainfall in Spring Hill, a relatively wet time of year. The wettest on record was 455 mm in 2004.
The hottest September reached 33.4°C in 1997. The coldest dipped to 14.8°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.9°C. Daytime highs moved from 28.4°C to 30.5°C and overnight lows from 22.5°C to 24.1°C over the same span.
September is one of the warmer months of the year in Spring Hill and a relatively wet time of year, so plan for around 29.5°C daytime highs and 23.6°C at night.
Not quite — September is the 9th coolest month in Spring Hill, averaging 26.6°C.
For September in Spring Hill, pack light layers you can adjust through the day, with typical highs of 29.5°C and lows of 23.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 82% — quite humid.
Average wind speed in September is 2.5 m/s. The windiest September on record averaged 4.5 m/s (2004).
The wettest September on record was 2004 with 455 mm. On average, September sees 169 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 Spring Hill 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.
