September is one of the warmer months of the year in Ajmer, with average highs near 34.5°C and lows around 22.8°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 1999 — when the month averaged 32.2°C — while the coldest was 1992 at 25.6°C. Typical September days reach 34.5°C with nights near 22.8°C. The long-term trend is cooling, about 0.3°C per decade.
September is a relatively wet time of year in Ajmer, averaging 61 mm of rainfall. The wettest September on record was 1992 with 172 mm, while the driest was 1982 at 5 mm.
Relative humidity in Ajmer during September averages 64%. The most humid Septembers were 2019 and 2025 at 84%, and the least humid was 2002 at 36%.
September receives about 5.7 kWh/m²/day of solar energy in Ajmer. The sunniest September was 1987 at 6.4 kWh/m²/day, and the cloudiest was 2021 at 4.5.
Average wind speed in Ajmer during September is 2.1 m/s. The windiest Septembers were 1988, 2011 and 2018, among others at 2.5 m/s, while the calmest was 2019 at 1.5 m/s.
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 | 29.9°C | 27.5°C | 28.0°C | -1.3°C |
| Avg High | 35.8°C | 34.2°C | 36.4°C | 32.8°C | 32.5°C | -3.3°C |
| Avg Low | 22.7°C | 22.5°C | 23.4°C | 22.1°C | 23.5°C | +0.8°C |
| Avg Rain | 35 mm | 76 mm | 36 mm | 74 mm | 97 mm | +62 mm |
September temperatures in Ajmer have fallen by about 0.8°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 0.7°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 34.5°C and nights around 22.8°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 | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.7°C | 26.6°C | 22.6°C | 33.4°C | 20.6°C | 132 mm | 84% | 2.3 m/s | 5.1 |
| 2024 | 31.5°C | 27.7°C | 23.9°C | 34.5°C | 20.6°C | 123 mm | 83% | 1.7 m/s | 4.7 |
| 2023 | 34.4°C | 28.9°C | 23.5°C | 37.2°C | 21.3°C | 69 mm | 70% | 2 m/s | 5.2 |
| 2022 | 32.4°C | 27.8°C | 23.3°C | 34.9°C | 21.4°C | 26 mm | 78% | 2.1 m/s | 5.5 |
| 2021 | 31.8°C | 28.2°C | 24.5°C | 34.9°C | 23.3°C | 161 mm | 81% | 2.2 m/s | 4.5 |
| 2020 | 34.0°C | 28.7°C | 23.5°C | 36.6°C | 20.8°C | 68 mm | 72% | 1.8 m/s | 5.3 |
| 2019 | 31.2°C | 27.5°C | 23.7°C | 33.9°C | 21.3°C | 78 mm | 84% | 1.5 m/s | 5 |
| 2018 | 33.2°C | 27.3°C | 21.4°C | 36.2°C | 18.8°C | 67 mm | 65% | 2.5 m/s | 4.8 |
| 2017 | 34.9°C | 28.6°C | 22.2°C | 37.5°C | 20.0°C | 33 mm | 64% | 2 m/s | 5.5 |
| 2016 | 33.5°C | 27.5°C | 21.5°C | 36.8°C | 20.1°C | 18 mm | 71% | 2.1 m/s | 6.1 |
| 2015 | 36.1°C | 29.1°C | 22.0°C | 39.0°C | 18.6°C | 14 mm | 54% | 2.2 m/s | 6.1 |
| 2014 | 32.6°C | 27.1°C | 21.6°C | 34.6°C | 19.1°C | 99 mm | 73% | 2.3 m/s | 5.8 |
| 2013 | 33.6°C | 28.1°C | 22.6°C | 37.3°C | 19.8°C | 79 mm | 69% | 2 m/s | 5.6 |
| 2012 | 30.5°C | 26.2°C | 21.9°C | 33.0°C | 17.7°C | 104 mm | 78% | 1.7 m/s | 5.1 |
| 2011 | 31.2°C | 26.9°C | 22.6°C | 32.3°C | 19.0°C | 137 mm | 81% | 2.5 m/s | 5.2 |
| 2010 | 31.3°C | 26.6°C | 21.8°C | 33.5°C | 18.1°C | 113 mm | 76% | 1.8 m/s | 5 |
| 2009 | 38.1°C | 30.6°C | 23.1°C | 41.3°C | 20.2°C | 20 mm | 49% | 2.4 m/s | 6.3 |
| 2008 | 34.6°C | 28.7°C | 22.7°C | 37.9°C | 20.1°C | 59 mm | 66% | 2.2 m/s | 5.7 |
| 2007 | 35.1°C | 29.2°C | 23.3°C | 37.4°C | 19.2°C | 65 mm | 63% | 1.8 m/s | 5.5 |
| 2006 | 35.7°C | 29.5°C | 23.2°C | 39.5°C | 21.4°C | 39 mm | 64% | 2.3 m/s | 5.6 |
| 2005 | 36.2°C | 30.2°C | 24.2°C | 42.3°C | 20.3°C | 75 mm | 59% | 2.3 m/s | 5.3 |
| 2004 | 34.7°C | 28.7°C | 22.7°C | 36.9°C | 20.7°C | 20 mm | 65% | 1.9 m/s | 5.9 |
| 2003 | 35.3°C | 29.3°C | 23.2°C | 37.9°C | 21.7°C | 45 mm | 63% | 2.1 m/s | 5.6 |
| 2002 | 38.7°C | 31.3°C | 24.0°C | 40.1°C | 22.2°C | 15 mm | 36% | 2.3 m/s | 6.1 |
| 2001 | 37.3°C | 30.0°C | 22.7°C | 40.4°C | 20.0°C | 9 mm | 46% | 1.8 m/s | 6.3 |
| 2000 | 38.4°C | 31.5°C | 24.6°C | 41.0°C | 21.9°C | 9 mm | 39% | 2.4 m/s | 6.1 |
| 1999 🔥 | 39.0°C | 32.2°C | 25.5°C | 40.7°C | 23.8°C | 23 mm | 42% | 2.2 m/s | 5.8 |
| 1998 | 35.7°C | 30.2°C | 24.7°C | 40.9°C | 21.5°C | 130 mm | 61% | 2.1 m/s | 5.7 |
| 1997 | 33.6°C | 28.0°C | 22.3°C | 36.3°C | 19.6°C | 56 mm | 69% | 2.1 m/s | 5.8 |
| 1996 | 33.8°C | 27.8°C | 21.8°C | 35.9°C | 19.0°C | 84 mm | 67% | 1.8 m/s | 5.7 |
| 1995 | 34.3°C | 27.9°C | 21.6°C | 36.8°C | 18.5°C | 16 mm | 62% | 1.8 m/s | 6.1 |
| 1994 | 31.1°C | 26.0°C | 21.0°C | 33.1°C | 16.6°C | 70 mm | 73% | 2.1 m/s | 6 |
| 1993 | 36.0°C | 29.5°C | 23.0°C | 39.1°C | 20.3°C | 77 mm | 60% | 2 m/s | 5.8 |
| 1992 ❄️ 🌧️ | 30.7°C | 25.6°C | 20.4°C | 33.8°C | 16.9°C | 172 mm | 75% | 2.1 m/s | 5.7 |
| 1991 | 34.2°C | 27.8°C | 21.5°C | 37.5°C | 19.2°C | 54 mm | 60% | 2.3 m/s | 6.1 |
| 1990 | 33.9°C | 28.5°C | 23.2°C | 36.4°C | 21.5°C | 77 mm | 70% | 2.2 m/s | 5.2 |
| 1989 | 35.8°C | 29.0°C | 22.1°C | 38.0°C | 19.2°C | 5 mm | 56% | 2.2 m/s | 6.2 |
| 1988 | 36.0°C | 30.0°C | 24.1°C | 39.1°C | 20.9°C | 63 mm | 64% | 2.5 m/s | 6 |
| 1987 | 39.3°C | 32.1°C | 24.8°C | 41.6°C | 23.0°C | 12 mm | 36% | 2.5 m/s | 6.4 |
| 1986 | 36.3°C | 29.1°C | 21.8°C | 38.0°C | 20.0°C | 7 mm | 51% | 1.9 m/s | 6.1 |
| 1985 | 37.2°C | 30.0°C | 22.7°C | 39.3°C | 21.1°C | 15 mm | 46% | 2.1 m/s | 6 |
| 1984 | 33.4°C | 27.6°C | 21.8°C | 36.1°C | 19.3°C | 88 mm | 63% | 2 m/s | 5.9 |
| 1983 | 34.1°C | 28.5°C | 23.0°C | 37.0°C | 20.3°C | 62 mm | 66% | 1.6 m/s | — |
| 1982 | 35.4°C | 28.2°C | 21.1°C | 37.1°C | 17.4°C | 5 mm | 58% | 2.3 m/s | — |
| 1981 | 34.6°C | 28.8°C | 23.0°C | 37.5°C | 21.7°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 34.5°C with lows near 22.8°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 0.8°C — but days and nights have moved in opposite directions. Overnight lows rose from 22.3°C to 23.6°C while daytime highs eased from 34.9°C to 32.2°C, narrowing the gap between day and night.
September is one of the warmer months of the year in Ajmer and a relatively wet time of year, so plan for around 34.5°C daytime highs and 22.8°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 34.5°C and lows of 22.8°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.
