September is close to Aravalli's year-round average, with average highs near 32.3°C and lows around 23.3°C (mean 27.8°C). It is a relatively wet time of year, averaging 108 mm of rainfall and 77% relative humidity across the period.
September is close to Aravalli's year-round average. Across 45 years of records, the warmest September in Aravalli was 1999 — when the month averaged 31.4°C — while the coldest was 1994 at 25.7°C. Typical September days reach 32.3°C with nights near 23.3°C. The long-term trend is cooling, about 0.2°C per decade.
September is a relatively wet time of year in Aravalli, averaging 108 mm of rainfall. The wettest September on record was 1994 with 422 mm, while the driest was 1987 at 2 mm.
Relative humidity in Aravalli during September averages 77%. The most humid September was 2019 at 90%, and the least humid was 1986 at 51%.
September receives about 5.2 kWh/m²/day of solar energy in Aravalli. The sunniest Septembers were 1986, 1987 and 2009 at 6.2 kWh/m²/day, and the cloudiest was 2019 at 3.7.
Average wind speed in Aravalli during September is 1.8 m/s. The windiest September was 1999 at 2.3 m/s, while the calmest were 1981, 2004 and 2020 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.3°C | 27.8°C | 28.1°C | 27.3°C | 27.4°C | -0.9°C |
| Avg High | 33.6°C | 32.5°C | 33.0°C | 31.3°C | 30.8°C | -2.8°C |
| Avg Low | 23.1°C | 23.0°C | 23.3°C | 23.2°C | 24.0°C | +0.9°C |
| Avg Rain | 44 mm | 126 mm | 84 mm | 135 mm | 174 mm | +130 mm |
September temperatures in Aravalli have stayed relatively stable across the record.
September has ranged from a record low of 18°C (1994) to a record high of 41.7°C (2001).
Rainfall in September is a relatively wet time of year, averaging 108 mm, with a wettest year of 422 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.6°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Aravalli
September is a good time to visit Aravalli, with days averaging 32.3°C and nights around 23.3°C (mean 27.8°C, close to Aravalli's yearly average) and higher rainfall. December and January 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 | 30.2°C | 26.7°C | 23.3°C | 33.4°C | 21.6°C | 153 mm | 87% | 2.2 m/s | 4.5 |
| 2024 | 30.4°C | 27.2°C | 24.0°C | 32.8°C | 21.2°C | 209 mm | 88% | 2.1 m/s | 4.3 |
| 2023 | 31.2°C | 27.6°C | 23.9°C | 33.7°C | 21.7°C | 239 mm | 83% | 2.2 m/s | 4.6 |
| 2022 | 30.8°C | 27.3°C | 23.7°C | 32.9°C | 21.0°C | 79 mm | 86% | 2 m/s | 5 |
| 2021 | 31.2°C | 28.1°C | 25.0°C | 34.8°C | 23.3°C | 241 mm | 85% | 2.2 m/s | 4 |
| 2020 | 30.9°C | 27.5°C | 24.1°C | 33.6°C | 21.3°C | 122 mm | 86% | 1.4 m/s | 5.1 |
| 2019 | 30.2°C | 27.4°C | 24.7°C | 32.8°C | 23.6°C | 252 mm | 90% | 1.9 m/s | 3.7 |
| 2018 | 32.7°C | 27.5°C | 22.2°C | 38.8°C | 20.4°C | 49 mm | 72% | 1.9 m/s | 4.6 |
| 2017 | 31.1°C | 27.1°C | 23.1°C | 33.2°C | 20.7°C | 58 mm | 82% | 1.5 m/s | 5 |
| 2016 | 32.3°C | 27.5°C | 22.8°C | 34.7°C | 20.5°C | 45 mm | 78% | 1.8 m/s | 5.4 |
| 2015 | 34.2°C | 28.7°C | 23.1°C | 38.9°C | 19.7°C | 77 mm | 70% | 1.9 m/s | 5.5 |
| 2014 | 30.5°C | 26.7°C | 23.0°C | 32.4°C | 20.8°C | 203 mm | 84% | 1.7 m/s | 4.7 |
| 2013 | 31.6°C | 27.6°C | 23.6°C | 35.9°C | 21.7°C | 178 mm | 82% | 1.9 m/s | 4.9 |
| 2012 | 30.5°C | 27.0°C | 23.5°C | 33.0°C | 21.0°C | 250 mm | 84% | 1.9 m/s | 4.4 |
| 2011 | 29.9°C | 26.6°C | 23.2°C | 31.3°C | 20.2°C | 106 mm | 87% | 2.1 m/s | 4.7 |
| 2010 | 30.4°C | 26.8°C | 23.2°C | 32.1°C | 20.1°C | 133 mm | 84% | 1.9 m/s | 4.9 |
| 2009 | 33.9°C | 28.4°C | 23.0°C | 39.0°C | 20.8°C | 29 mm | 75% | 1.9 m/s | 6.2 |
| 2008 | 31.3°C | 27.2°C | 23.2°C | 34.0°C | 19.9°C | 125 mm | 82% | 1.6 m/s | 5.3 |
| 2007 | 31.1°C | 27.3°C | 23.5°C | 34.2°C | 19.2°C | 64 mm | 84% | 1.5 m/s | 5.4 |
| 2006 | 30.8°C | 27.2°C | 23.5°C | 33.1°C | 22.4°C | 151 mm | 86% | 1.6 m/s | 5.1 |
| 2005 | 31.5°C | 27.7°C | 23.9°C | 36.1°C | 20.9°C | 313 mm | 83% | 1.8 m/s | 4.7 |
| 2004 | 31.6°C | 27.4°C | 23.2°C | 33.6°C | 21.1°C | 46 mm | 81% | 1.4 m/s | 5.8 |
| 2003 | 30.6°C | 26.8°C | 23.1°C | 32.8°C | 21.8°C | 38 mm | 85% | 2 m/s | 4.8 |
| 2002 | 35.7°C | 29.2°C | 22.7°C | 40.0°C | 19.6°C | 61 mm | 63% | 2.1 m/s | 5.7 |
| 2001 | 37.4°C | 30.7°C | 24.0°C | 41.7°C | 21.7°C | 6 mm | 58% | 1.7 m/s | 5.8 |
| 2000 | 35.9°C | 29.5°C | 23.2°C | 40.1°C | 21.1°C | 5 mm | 61% | 1.8 m/s | 5.5 |
| 1999 🔥 | 37.5°C | 31.4°C | 25.3°C | 39.9°C | 24.1°C | 34 mm | 56% | 2.3 m/s | 5.2 |
| 1998 | 32.0°C | 28.0°C | 24.0°C | 34.0°C | 22.2°C | 135 mm | 82% | 2.1 m/s | 4.9 |
| 1997 | 30.6°C | 26.8°C | 23.0°C | 33.5°C | 20.3°C | 80 mm | 84% | 1.8 m/s | 5.7 |
| 1996 | 31.4°C | 26.9°C | 22.5°C | 33.7°C | 20.2°C | 79 mm | 80% | 1.6 m/s | 5.1 |
| 1995 | 35.5°C | 29.5°C | 23.5°C | 38.6°C | 21.3°C | 68 mm | 65% | 1.7 m/s | 5.7 |
| 1994 ❄️ 🌧️ | 29.6°C | 25.7°C | 21.8°C | 31.4°C | 18.0°C | 422 mm | 83% | 1.9 m/s | 5.1 |
| 1993 | 34.7°C | 29.2°C | 23.7°C | 37.9°C | 22.0°C | 91 mm | 68% | 2.1 m/s | 5.6 |
| 1992 | 31.0°C | 26.2°C | 21.4°C | 34.2°C | 18.5°C | 196 mm | 77% | 1.8 m/s | 5.2 |
| 1991 | 32.7°C | 27.3°C | 21.8°C | 36.7°C | 19.9°C | 10 mm | 72% | 1.9 m/s | 5.5 |
| 1990 | 30.3°C | 26.8°C | 23.3°C | 31.9°C | 21.5°C | 140 mm | 86% | 1.9 m/s | 4.8 |
| 1989 | 32.6°C | 27.7°C | 22.8°C | 36.6°C | 21.3°C | 12 mm | 75% | 1.6 m/s | 5.7 |
| 1988 | 32.4°C | 28.3°C | 24.3°C | 34.9°C | 22.3°C | 70 mm | 81% | 1.8 m/s | 5.7 |
| 1987 | 37.5°C | 30.8°C | 24.0°C | 41.2°C | 22.7°C | 2 mm | 55% | 2.2 m/s | 6.2 |
| 1986 | 37.4°C | 30.2°C | 23.0°C | 41.0°C | 21.4°C | 2 mm | 51% | 1.7 m/s | 6.2 |
| 1985 | 35.9°C | 29.4°C | 22.8°C | 40.2°C | 21.4°C | 13 mm | 60% | 2.1 m/s | 6 |
| 1984 | 31.0°C | 26.4°C | 21.8°C | 34.8°C | 19.3°C | 58 mm | 76% | 2 m/s | 5.6 |
| 1983 | 31.7°C | 27.6°C | 23.4°C | 34.7°C | 20.7°C | 101 mm | 81% | 1.6 m/s | — |
| 1982 | 32.1°C | 26.9°C | 21.6°C | 34.9°C | 18.3°C | 4 mm | 76% | 1.7 m/s | — |
| 1981 | 31.5°C | 27.6°C | 23.8°C | 33.9°C | 21.9°C | 134 mm | 82% | 1.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 32.3°C with lows near 23.3°C (mean 27.8°C), based on 45 years of NASA POWER data.
September averages 108 mm of rainfall in Aravalli, a relatively wet time of year. The wettest on record was 422 mm in 1994.
The hottest September reached 41.7°C in 2001. The coldest dipped to 18°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 22.7°C to 24°C while daytime highs eased from 32.4°C to 30.8°C, narrowing the gap between day and night.
September is close to Aravalli's year-round average and a relatively wet time of year, so plan for around 32.3°C daytime highs and 23.3°C at night.
Not quite — September is the 7th coolest month in Aravalli, averaging 27.8°C.
For September in Aravalli, pack light, breathable clothing and sun protection, with typical highs of 32.3°C and lows of 23.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 77% — quite humid.
Average wind speed in September is 1.8 m/s. The windiest September on record averaged 2.3 m/s (1999).
The wettest September on record was 1994 with 422 mm. On average, September sees 108 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 Aravalli 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.
