September is close to Ratlam's year-round average, with average highs near 30°C and lows around 21.8°C (mean 25.9°C). It is a relatively wet time of year, averaging 145 mm of rainfall and 82% relative humidity across the period.
September is close to Ratlam's year-round average. Across 45 years of records, the warmest September in Ratlam was 2001 — when the month averaged 28.6°C — while the coldest was 1994 at 24.3°C. Typical September days reach 30°C with nights near 21.8°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Ratlam, averaging 145 mm of rainfall. The wettest September on record was 2023 with 391 mm, while the driest was 2001 at 12 mm.
Relative humidity in Ratlam during September averages 82%. The most humid September was 2019 at 92%, and the least humid was 2001 at 64%.
September receives about 5 kWh/m²/day of solar energy in Ratlam. The sunniest September was 2009 at 5.9 kWh/m²/day, and the cloudiest was 2019 at 3.1.
Average wind speed in Ratlam during September is 2.1 m/s. The windiest Septembers were 2003, 2021 and 2023 at 2.5 m/s, while the calmest were 2004 and 2020 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 25.6°C | 26.4°C | 25.5°C | 26.0°C | 0°C |
| Avg High | 30.5°C | 29.8°C | 31.0°C | 29.3°C | 29.3°C | -1.2°C |
| Avg Low | 21.5°C | 21.4°C | 21.9°C | 21.7°C | 22.7°C | +1.2°C |
| Avg Rain | 89 mm | 151 mm | 114 mm | 151 mm | 258 mm | +169 mm |
September temperatures in Ratlam have stayed relatively stable across the record.
September has ranged from a record low of 16.4°C (1994) to a record high of 38.9°C (2001).
Rainfall in September is a relatively wet time of year, averaging 145 mm, with a wettest year of 391 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Ratlam
September is a good time to visit Ratlam, with days averaging 30°C and nights around 21.8°C (mean 25.9°C, close to Ratlam's yearly average) and higher rainfall. February and November 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 | 28.8°C | 25.4°C | 22.1°C | 30.8°C | 20.1°C | 284 mm | 89% | 2.3 m/s | 4.3 |
| 2024 | 28.8°C | 25.9°C | 23.0°C | 31.3°C | 19.8°C | 222 mm | 90% | 2.3 m/s | 4 |
| 2023 🌧️ | 29.5°C | 26.0°C | 22.6°C | 31.9°C | 20.6°C | 391 mm | 86% | 2.5 m/s | 4.2 |
| 2022 | 29.7°C | 26.2°C | 22.7°C | 31.6°C | 20.5°C | 124 mm | 86% | 2.1 m/s | 4.7 |
| 2021 | 29.1°C | 26.2°C | 23.3°C | 31.4°C | 21.6°C | 331 mm | 89% | 2.5 m/s | 4 |
| 2020 | 29.9°C | 26.3°C | 22.6°C | 31.3°C | 18.3°C | 195 mm | 86% | 1.6 m/s | 4.8 |
| 2019 | 28.1°C | 25.7°C | 23.2°C | 31.3°C | 21.1°C | 323 mm | 92% | 2.1 m/s | 3.1 |
| 2018 | 29.0°C | 24.9°C | 20.8°C | 31.9°C | 19.0°C | 90 mm | 81% | 2.3 m/s | 4.4 |
| 2017 | 29.7°C | 25.6°C | 21.5°C | 31.7°C | 19.6°C | 118 mm | 84% | 1.8 m/s | 4.7 |
| 2016 | 29.4°C | 25.4°C | 21.4°C | 31.0°C | 19.9°C | 80 mm | 85% | 2 m/s | 5.1 |
| 2015 | 30.6°C | 25.7°C | 20.7°C | 32.7°C | 17.4°C | 44 mm | 78% | 2.1 m/s | 5.4 |
| 2014 | 29.1°C | 25.4°C | 21.6°C | 31.1°C | 19.5°C | 194 mm | 86% | 2.1 m/s | 4.9 |
| 2013 | 29.9°C | 26.0°C | 22.1°C | 32.9°C | 20.6°C | 123 mm | 84% | 2 m/s | 5 |
| 2012 | 29.1°C | 25.6°C | 22.0°C | 30.7°C | 19.3°C | 250 mm | 86% | 1.8 m/s | 4.6 |
| 2011 | 28.8°C | 25.3°C | 21.9°C | 30.2°C | 18.6°C | 131 mm | 89% | 2.3 m/s | 4.7 |
| 2010 | 29.4°C | 25.6°C | 21.8°C | 31.1°C | 18.4°C | 157 mm | 84% | 2.1 m/s | 5 |
| 2009 | 31.8°C | 26.7°C | 21.6°C | 36.3°C | 18.8°C | 67 mm | 79% | 2.2 m/s | 5.9 |
| 2008 | 30.1°C | 26.0°C | 21.9°C | 32.4°C | 18.9°C | 114 mm | 83% | 1.8 m/s | 5.1 |
| 2007 | 29.9°C | 26.0°C | 22.1°C | 31.5°C | 19.3°C | 101 mm | 83% | 1.7 m/s | 5.1 |
| 2006 | 29.5°C | 25.8°C | 22.2°C | 31.4°C | 20.2°C | 185 mm | 86% | 1.8 m/s | 5.2 |
| 2005 | 30.0°C | 26.3°C | 22.5°C | 34.2°C | 19.0°C | 242 mm | 85% | 2.2 m/s | 4.6 |
| 2004 | 30.4°C | 26.2°C | 22.1°C | 32.7°C | 20.7°C | 107 mm | 82% | 1.6 m/s | 5.7 |
| 2003 | 29.0°C | 25.6°C | 22.2°C | 30.1°C | 21.1°C | 224 mm | 87% | 2.5 m/s | 4.1 |
| 2002 | 31.3°C | 26.1°C | 20.9°C | 36.3°C | 19.0°C | 71 mm | 76% | 2.3 m/s | 5.6 |
| 2001 🔥 | 35.3°C | 28.6°C | 22.0°C | 38.9°C | 20.3°C | 12 mm | 64% | 1.9 m/s | 5.7 |
| 2000 | 32.9°C | 27.1°C | 21.3°C | 37.5°C | 19.1°C | 20 mm | 69% | 2.2 m/s | 5.3 |
| 1999 | 31.9°C | 27.1°C | 22.3°C | 34.5°C | 20.6°C | 203 mm | 76% | 2.4 m/s | 4.5 |
| 1998 | 30.3°C | 26.5°C | 22.8°C | 32.4°C | 21.3°C | 218 mm | 84% | 2 m/s | 4.7 |
| 1997 | 29.6°C | 25.7°C | 21.8°C | 32.2°C | 19.2°C | 55 mm | 85% | 2.2 m/s | 5.4 |
| 1996 | 29.6°C | 25.4°C | 21.2°C | 31.6°C | 18.4°C | 137 mm | 83% | 1.8 m/s | 5 |
| 1995 | 30.5°C | 25.9°C | 21.3°C | 32.5°C | 18.2°C | 119 mm | 78% | 1.9 m/s | 5.5 |
| 1994 ❄️ | 28.3°C | 24.3°C | 20.3°C | 29.9°C | 16.4°C | 214 mm | 84% | 2.3 m/s | 4.8 |
| 1993 | 29.9°C | 25.7°C | 21.5°C | 31.6°C | 19.8°C | 154 mm | 82% | 2.4 m/s | 4.9 |
| 1992 | 29.4°C | 24.8°C | 20.2°C | 31.8°C | 17.2°C | 135 mm | 80% | 2.2 m/s | 5.4 |
| 1991 | 30.0°C | 25.1°C | 20.3°C | 32.4°C | 17.1°C | 23 mm | 77% | 2.1 m/s | 5.6 |
| 1990 | 28.6°C | 25.3°C | 22.1°C | 30.3°C | 19.8°C | 257 mm | 88% | 2.3 m/s | 4 |
| 1989 | 30.8°C | 26.1°C | 21.4°C | 32.6°C | 18.9°C | 119 mm | 78% | 2 m/s | 5.7 |
| 1988 | 30.5°C | 26.6°C | 22.8°C | 32.3°C | 20.9°C | 152 mm | 84% | 2 m/s | 5.5 |
| 1987 | 32.3°C | 26.8°C | 21.4°C | 36.0°C | 19.4°C | 23 mm | 72% | 2.3 m/s | 5.7 |
| 1986 | 30.7°C | 25.6°C | 20.4°C | 33.2°C | 19.0°C | 51 mm | 74% | 1.8 m/s | 5.8 |
| 1985 | 31.2°C | 26.0°C | 20.9°C | 34.9°C | 19.6°C | 87 mm | 74% | 2.4 m/s | 5.4 |
| 1984 | 29.1°C | 24.9°C | 20.8°C | 31.5°C | 18.1°C | 43 mm | 80% | 2.4 m/s | 5.6 |
| 1983 | 29.9°C | 26.1°C | 22.3°C | 32.5°C | 19.7°C | 92 mm | 83% | 2 m/s | — |
| 1982 | 30.3°C | 25.5°C | 20.8°C | 32.4°C | 17.4°C | 78 mm | 78% | 2.2 m/s | — |
| 1981 | 30.1°C | 26.2°C | 22.4°C | 32.8°C | 21.5°C | 156 mm | 83% | 1.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30°C with lows near 21.8°C (mean 25.9°C), based on 45 years of NASA POWER data.
September averages 145 mm of rainfall in Ratlam, a relatively wet time of year. The wettest on record was 391 mm in 2023.
The hottest September reached 38.9°C in 2001. The coldest dipped to 16.4°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.4°C to 22.7°C while daytime highs eased from 30.1°C to 29.2°C, narrowing the gap between day and night.
September is close to Ratlam's year-round average and a relatively wet time of year, so plan for around 30°C daytime highs and 21.8°C at night.
Not quite — September is the 6th coolest month in Ratlam, averaging 25.9°C.
For September in Ratlam, pack light, breathable clothing and sun protection, with typical highs of 30°C and lows of 21.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 82% — quite humid.
Average wind speed in September is 2.1 m/s. The windiest September on record averaged 2.5 m/s (2003).
The wettest September on record was 2023 with 391 mm. On average, September sees 145 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 Ratlam 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.
