September is one of the warmer months of the year in Ajmer, with average highs near 37.2°C and lows around 20.2°C (mean 28.7°C). It is a relatively wet time of year, averaging 61 mm of rainfall and 64% relative humidity across the period.
September is one of the warmer months of the year in Ajmer. Across 45 years of records, the warmest September in Ajmer was 1987 — when the month averaged 32.3°C — while the coldest was 1994 at 24.8°C. Typical September days reach 37.2°C with nights near 20.2°C. The long-term trend is cooling, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.3°C | 28.4°C | 30.1°C | 27.4°C | 28.3°C | -1°C |
| Avg High | 38.2°C | 37.1°C | 39.5°C | 35.4°C | 35.3°C | -2.9°C |
| Avg Low | 20.3°C | 19.7°C | 20.8°C | 19.3°C | 21.3°C | +1°C |
| Avg Rain | 35 mm | 76 mm | 36 mm | 74 mm | 97 mm | +62 mm |
September temperatures in Ajmer have fallen by about 0.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 16.6°C (1994) to a record high of 42.3°C (2005).
Rainfall in September is a relatively wet time of year, averaging 61 mm, with a wettest year of 172 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.6°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Ajmer
September is a good time to visit Ajmer, with days averaging 37.2°C and nights around 20.2°C (mean 28.7°C, warmer than Ajmer's yearly average) and moderate rainfall. November and March are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 33.4°C | 20.6°C | 27.0°C | 132 mm | 84% | 2.3 m/s | 5.1 |
| 2024 | 34.5°C | 20.6°C | 27.5°C | 123 mm | 83% | 1.7 m/s | 4.7 |
| 2023 | 37.2°C | 21.3°C | 29.2°C | 69 mm | 70% | 2 m/s | 5.2 |
| 2022 | 34.9°C | 21.4°C | 28.1°C | 26 mm | 78% | 2.1 m/s | 5.5 |
| 2021 | 34.9°C | 23.3°C | 29.1°C | 161 mm | 81% | 2.2 m/s | 4.5 |
| 2020 | 36.6°C | 20.8°C | 28.7°C | 68 mm | 72% | 1.8 m/s | 5.3 |
| 2019 | 33.9°C | 21.3°C | 27.6°C | 78 mm | 84% | 1.5 m/s | 5 |
| 2018 | 36.2°C | 18.8°C | 27.5°C | 67 mm | 65% | 2.5 m/s | 4.8 |
| 2017 | 37.5°C | 20.0°C | 28.8°C | 33 mm | 64% | 2 m/s | 5.5 |
| 2016 | 36.8°C | 20.1°C | 28.5°C | 18 mm | 71% | 2.1 m/s | 6.1 |
| 2015 | 39.0°C | 18.6°C | 28.8°C | 14 mm | 54% | 2.2 m/s | 6.1 |
| 2014 | 34.6°C | 19.1°C | 26.9°C | 99 mm | 73% | 2.3 m/s | 5.8 |
| 2013 | 37.3°C | 19.8°C | 28.6°C | 79 mm | 69% | 2 m/s | 5.6 |
| 2012 | 33.0°C | 17.7°C | 25.4°C | 104 mm | 78% | 1.7 m/s | 5.1 |
| 2011 | 32.3°C | 19.0°C | 25.7°C | 137 mm | 81% | 2.5 m/s | 5.2 |
| 2010 | 33.5°C | 18.1°C | 25.8°C | 113 mm | 76% | 1.8 m/s | 5 |
| 2009 | 41.3°C | 20.2°C | 30.7°C | 20 mm | 49% | 2.4 m/s | 6.3 |
| 2008 | 37.9°C | 20.1°C | 29.0°C | 59 mm | 66% | 2.2 m/s | 5.7 |
| 2007 | 37.4°C | 19.2°C | 28.3°C | 65 mm | 63% | 1.8 m/s | 5.5 |
| 2006 | 39.5°C | 21.4°C | 30.4°C | 39 mm | 64% | 2.3 m/s | 5.6 |
| 2005 | 42.3°C | 20.3°C | 31.3°C | 75 mm | 59% | 2.3 m/s | 5.3 |
| 2004 | 36.9°C | 20.7°C | 28.8°C | 20 mm | 65% | 1.9 m/s | 5.9 |
| 2003 | 37.9°C | 21.7°C | 29.8°C | 45 mm | 63% | 2.1 m/s | 5.6 |
| 2002 | 40.1°C | 22.2°C | 31.1°C | 15 mm | 36% | 2.3 m/s | 6.1 |
| 2001 | 40.4°C | 20.0°C | 30.2°C | 9 mm | 46% | 1.8 m/s | 6.3 |
| 2000 | 41.0°C | 21.9°C | 31.4°C | 9 mm | 39% | 2.4 m/s | 6.1 |
| 1999 | 40.7°C | 23.8°C | 32.2°C | 23 mm | 42% | 2.2 m/s | 5.8 |
| 1998 | 40.9°C | 21.5°C | 31.2°C | 130 mm | 61% | 2.1 m/s | 5.7 |
| 1997 | 36.3°C | 19.6°C | 28.0°C | 56 mm | 69% | 2.1 m/s | 5.8 |
| 1996 | 35.9°C | 19.0°C | 27.5°C | 84 mm | 67% | 1.8 m/s | 5.7 |
| 1995 | 36.8°C | 18.5°C | 27.6°C | 16 mm | 62% | 1.8 m/s | 6.1 |
| 1994 ❄️ | 33.1°C | 16.6°C | 24.8°C | 70 mm | 73% | 2.1 m/s | 6 |
| 1993 | 39.1°C | 20.3°C | 29.7°C | 77 mm | 60% | 2 m/s | 5.8 |
| 1992 🌧️ | 33.8°C | 16.9°C | 25.4°C | 172 mm | 75% | 2.1 m/s | 5.7 |
| 1991 | 37.5°C | 19.2°C | 28.3°C | 54 mm | 60% | 2.3 m/s | 6.1 |
| 1990 | 36.4°C | 21.5°C | 28.9°C | 77 mm | 70% | 2.2 m/s | 5.2 |
| 1989 | 38.0°C | 19.2°C | 28.6°C | 5 mm | 56% | 2.2 m/s | 6.2 |
| 1988 | 39.1°C | 20.9°C | 30.0°C | 63 mm | 64% | 2.5 m/s | 6 |
| 1987 🔥 | 41.6°C | 23.0°C | 32.3°C | 12 mm | 36% | 2.5 m/s | 6.4 |
| 1986 | 38.0°C | 20.0°C | 29.0°C | 7 mm | 51% | 1.9 m/s | 6.1 |
| 1985 | 39.3°C | 21.1°C | 30.2°C | 15 mm | 46% | 2.1 m/s | 6 |
| 1984 | 36.1°C | 19.3°C | 27.7°C | 88 mm | 63% | 2 m/s | 5.9 |
| 1983 | 37.0°C | 20.3°C | 28.6°C | 62 mm | 66% | 1.6 m/s | — |
| 1982 | 37.1°C | 17.4°C | 27.3°C | 5 mm | 58% | 2.3 m/s | — |
| 1981 | 37.5°C | 21.7°C | 29.6°C | 60 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 37.2°C with lows near 20.2°C (mean 28.7°C), based on 45 years of NASA POWER data.
September averages 61 mm of rainfall in Ajmer, a relatively wet time of year. The wettest on record was 172 mm in 1992.
The hottest September reached 42.3°C in 2005. The coldest dipped to 16.6°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.5°C. Daytime highs moved from 37.4°C to 35°C and overnight lows from 20°C to 21.4°C over the same span.
September is one of the warmer months of the year in Ajmer and a relatively wet time of year, so plan for around 37.2°C daytime highs and 20.2°C at night.
Not quite — September is the 7th coolest month in Ajmer, averaging 28.7°C.
For September in Ajmer, pack light, breathable clothing and sun protection, with typical highs of 37.2°C and lows of 20.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 64% — moderately humid.
Average wind speed in September is 2.1 m/s. The windiest September on record averaged 2.5 m/s (1987).
The wettest September on record was 1992 with 172 mm. On average, September sees 61 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 Ajmer 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.
