September is one of the warmer months of the year in Etah, with average highs near 36.3°C and lows around 20.6°C (mean 28.5°C). It is a relatively wet time of year, averaging 107 mm of rainfall and 72% relative humidity across the period.
September is one of the warmer months of the year in Etah. Across 45 years of records, the warmest September in Etah was 1987 — when the month averaged 31.5°C — while the coldest was 1994 at 24.6°C. Typical September days reach 36.3°C with nights near 20.6°C. The long-term September temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.6°C | 27.9°C | 29.4°C | 27.6°C | 28.9°C | +0.3°C |
| Avg High | 36.8°C | 35.7°C | 37.8°C | 35.2°C | 35.9°C | -0.9°C |
| Avg Low | 20.4°C | 20.2°C | 21.0°C | 19.9°C | 21.9°C | +1.5°C |
| Avg Rain | 72 mm | 121 mm | 91 mm | 106 mm | 168 mm | +96 mm |
September temperatures in Etah have risen by about 1.3°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.5°C (1982) to a record high of 41.5°C (1987).
Rainfall in September is a relatively wet time of year, averaging 107 mm, with a wettest year of 273 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Etah
September is a good time to visit Etah, with days averaging 36.3°C and nights around 20.6°C (mean 28.5°C, warmer than Etah's yearly average) and higher rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 32.7°C | 20.6°C | 26.7°C | 221 mm | 85% | 1.8 m/s | 4.8 |
| 2024 | 34.4°C | 23.3°C | 28.8°C | 266 mm | 85% | 1.7 m/s | 4.1 |
| 2023 | 35.4°C | 21.3°C | 28.3°C | 135 mm | 79% | 1.7 m/s | 4.7 |
| 2022 | 39.7°C | 22.4°C | 31.1°C | 241 mm | 73% | 2.2 m/s | 4.3 |
| 2021 | 33.2°C | 22.2°C | 27.7°C | 122 mm | 84% | 2.3 m/s | 4.4 |
| 2020 | 39.9°C | 21.4°C | 30.6°C | 24 mm | 60% | 1.6 m/s | 5.2 |
| 2019 | 35.5°C | 21.6°C | 28.6°C | 134 mm | 83% | 1.6 m/s | 4.1 |
| 2018 | 33.0°C | 19.4°C | 26.2°C | 116 mm | 84% | 2.2 m/s | 4.5 |
| 2017 | 38.8°C | 19.9°C | 29.3°C | 109 mm | 64% | 1.5 m/s | 4.8 |
| 2016 | 34.1°C | 22.4°C | 28.2°C | 48 mm | 78% | 1.6 m/s | 5.2 |
| 2015 | 39.1°C | 18.8°C | 28.9°C | 59 mm | 52% | 1.9 m/s | 5.7 |
| 2014 | 38.8°C | 21.3°C | 30.0°C | 53 mm | 58% | 2.2 m/s | 5.2 |
| 2013 | 32.9°C | 20.3°C | 26.6°C | 108 mm | 81% | 1.8 m/s | 5.4 |
| 2012 | 33.8°C | 17.1°C | 25.5°C | 112 mm | 82% | 2 m/s | 5 |
| 2011 | 33.5°C | 20.0°C | 26.8°C | 126 mm | 84% | 2 m/s | 5.2 |
| 2010 | 32.7°C | 18.2°C | 25.4°C | 190 mm | 85% | 2 m/s | 4.1 |
| 2009 | 36.8°C | 21.6°C | 29.2°C | 128 mm | 74% | 1.8 m/s | 5.1 |
| 2008 | 35.6°C | 19.3°C | 27.4°C | 128 mm | 80% | 1.7 m/s | 5 |
| 2007 | 37.8°C | 22.3°C | 30.0°C | 60 mm | 66% | 1.6 m/s | 5.1 |
| 2006 | 38.3°C | 21.2°C | 29.7°C | 49 mm | 59% | 2.1 m/s | 5.6 |
| 2005 | 40.0°C | 21.6°C | 30.8°C | 127 mm | 69% | 2.5 m/s | 4.8 |
| 2004 | 39.3°C | 21.2°C | 30.2°C | 67 mm | 62% | 1.9 m/s | 5.3 |
| 2003 | 35.3°C | 20.9°C | 28.1°C | 137 mm | 79% | 1.4 m/s | 3.9 |
| 2002 | 36.4°C | 19.3°C | 27.8°C | 158 mm | 72% | 1.7 m/s | 4.7 |
| 2001 | 40.1°C | 22.3°C | 31.2°C | 28 mm | 46% | 1.8 m/s | 5.6 |
| 2000 | 38.6°C | 20.0°C | 29.3°C | 26 mm | 58% | 1.6 m/s | 5.4 |
| 1999 | 38.5°C | 23.3°C | 30.9°C | 93 mm | 73% | 1.5 m/s | 4.1 |
| 1998 | 37.1°C | 23.3°C | 30.2°C | 136 mm | 76% | 1.9 m/s | 5.2 |
| 1997 | 39.4°C | 21.1°C | 30.3°C | 50 mm | 57% | 1.9 m/s | 5.1 |
| 1996 | 33.6°C | 19.3°C | 26.5°C | 131 mm | 81% | 1.6 m/s | 5.4 |
| 1995 | 33.8°C | 18.6°C | 26.2°C | 144 mm | 80% | 1.8 m/s | 5.4 |
| 1994 ❄️ | 33.6°C | 15.6°C | 24.6°C | 20 mm | 76% | 2.1 m/s | 5.9 |
| 1993 🌧️ | 36.2°C | 20.7°C | 28.4°C | 273 mm | 80% | 2 m/s | 4.5 |
| 1992 | 36.3°C | 19.0°C | 27.7°C | 115 mm | 69% | 1.9 m/s | 5.3 |
| 1991 | 33.5°C | 18.3°C | 25.9°C | 92 mm | 77% | 1.7 m/s | 5.4 |
| 1990 | 34.6°C | 22.3°C | 28.5°C | 159 mm | 82% | 1.9 m/s | 4.6 |
| 1989 | 38.5°C | 22.8°C | 30.7°C | 102 mm | 65% | 1.8 m/s | 5.5 |
| 1988 | 35.6°C | 21.4°C | 28.5°C | 38 mm | 79% | 2 m/s | 5.8 |
| 1987 🔥 | 41.5°C | 21.4°C | 31.5°C | 56 mm | 48% | 1.8 m/s | 5.8 |
| 1986 | 40.6°C | 21.1°C | 30.9°C | 37 mm | 49% | 2.3 m/s | 5.6 |
| 1985 | 35.6°C | 20.1°C | 27.8°C | 109 mm | 78% | 2.4 m/s | 5.2 |
| 1984 | 33.1°C | 17.4°C | 25.2°C | 120 mm | 79% | 1.9 m/s | 5.6 |
| 1983 | 34.2°C | 22.5°C | 28.4°C | 111 mm | 82% | 1.9 m/s | — |
| 1982 | 34.1°C | 15.5°C | 24.8°C | 16 mm | 75% | 1.8 m/s | — |
| 1981 | 38.3°C | 21.2°C | 29.8°C | 59 mm | 67% | 2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 36.3°C with lows near 20.6°C (mean 28.5°C), based on 45 years of NASA POWER data.
September averages 107 mm of rainfall in Etah, a relatively wet time of year. The wettest on record was 273 mm in 1993.
The hottest September reached 41.5°C in 1987. The coldest dipped to 15.5°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.3°C. Daytime highs moved from 35.1°C to 35.1°C and overnight lows from 19.3°C to 22°C over the same span.
September is one of the warmer months of the year in Etah and a relatively wet time of year, so plan for around 36.3°C daytime highs and 20.6°C at night.
Not quite — September is the 7th coolest month in Etah, averaging 28.5°C.
For September in Etah, pack light, breathable clothing and sun protection, with typical highs of 36.3°C and lows of 20.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 72% — moderately humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.5 m/s (2005).
The wettest September on record was 1993 with 273 mm. On average, September sees 107 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 Etah 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.
