September is close to Ranipet's year-round average, with average highs near 35.4°C and lows around 21.5°C (mean 28.5°C). It is a relatively wet time of year, averaging 138 mm of rainfall and 76% relative humidity across the period.
September is close to Ranipet's year-round average. Across 45 years of records, the warmest September in Ranipet was 2018 — when the month averaged 30.6°C — while the coldest was 2020 at 26.3°C. Typical September days reach 35.4°C with nights near 21.5°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 | 28.4°C | 28.6°C | 28.8°C | 28.4°C | 27.9°C | -0.5°C |
| Avg High | 35.7°C | 35.4°C | 35.8°C | 35.4°C | 34.4°C | -1.3°C |
| Avg Low | 21.2°C | 21.7°C | 21.9°C | 21.4°C | 21.4°C | +0.2°C |
| Avg Rain | 143 mm | 120 mm | 143 mm | 142 mm | 147 mm | +4 mm |
September temperatures in Ranipet have stayed relatively stable across the record.
September has ranged from a record low of 19.2°C (1994) to a record high of 38.6°C (2018).
Rainfall in September is a relatively wet time of year, averaging 138 mm, with a wettest year of 236 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Ranipet
September is a good time to visit Ranipet, with days averaging 35.4°C and nights around 21.5°C (mean 28.5°C, close to Ranipet's yearly average) and higher rainfall. January and December are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 34.4°C | 21.8°C | 28.1°C | 169 mm | 79% | 1.8 m/s | 5.2 |
| 2024 | 36.3°C | 21.7°C | 29.0°C | 79 mm | 74% | 2.2 m/s | 5.4 |
| 2023 🌧️ | 36.2°C | 22.3°C | 29.3°C | 236 mm | 79% | 2 m/s | 5.6 |
| 2022 | 33.6°C | 20.7°C | 27.2°C | 97 mm | 80% | 1.7 m/s | 5.2 |
| 2021 | 33.0°C | 21.7°C | 27.4°C | 126 mm | 80% | 1.9 m/s | 5.2 |
| 2020 ❄️ | 32.6°C | 20.0°C | 26.3°C | 178 mm | 83% | 1.9 m/s | 4.6 |
| 2019 | 34.1°C | 21.9°C | 28.0°C | 224 mm | 82% | 2 m/s | 5 |
| 2018 🔥 | 38.6°C | 22.5°C | 30.6°C | 115 mm | 70% | 1.7 m/s | 5.7 |
| 2017 | 32.6°C | 20.6°C | 26.6°C | 188 mm | 84% | 1.4 m/s | 5.1 |
| 2016 | 36.6°C | 22.2°C | 29.4°C | 88 mm | 69% | 2 m/s | 5.2 |
| 2015 | 36.1°C | 21.2°C | 28.6°C | 109 mm | 75% | 1.7 m/s | 5.6 |
| 2014 | 37.4°C | 21.4°C | 29.4°C | 146 mm | 74% | 2 m/s | 5.6 |
| 2013 | 32.8°C | 21.2°C | 27.0°C | 206 mm | 81% | 1.8 m/s | 5.4 |
| 2012 | 36.2°C | 20.9°C | 28.5°C | 85 mm | 72% | 1.7 m/s | 5.5 |
| 2011 | 35.0°C | 20.9°C | 28.0°C | 130 mm | 73% | 2 m/s | 5.9 |
| 2010 | 34.4°C | 21.0°C | 27.7°C | 126 mm | 79% | 1.9 m/s | 5.1 |
| 2009 | 36.1°C | 22.1°C | 29.1°C | 230 mm | 77% | 2.1 m/s | 5.7 |
| 2008 | 34.5°C | 21.4°C | 27.9°C | 94 mm | 77% | 1.9 m/s | 5.6 |
| 2007 | 32.5°C | 21.2°C | 26.8°C | 147 mm | 83% | 2 m/s | 5.5 |
| 2006 | 36.4°C | 21.9°C | 29.1°C | 94 mm | 72% | 2.2 m/s | 5.3 |
| 2005 | 35.8°C | 21.6°C | 28.7°C | 134 mm | 77% | 1.9 m/s | 5.4 |
| 2004 | 35.0°C | 21.4°C | 28.2°C | 236 mm | 81% | 1.7 m/s | 4.9 |
| 2003 | 37.0°C | 22.8°C | 29.9°C | 83 mm | 70% | 2.2 m/s | 5.9 |
| 2002 | 37.9°C | 21.8°C | 29.8°C | 98 mm | 67% | 2 m/s | 6 |
| 2001 | 37.5°C | 22.2°C | 29.9°C | 167 mm | 76% | 1.6 m/s | 5.6 |
| 2000 | 35.4°C | 22.2°C | 28.8°C | 142 mm | 76% | 1.7 m/s | 5.6 |
| 1999 | 36.7°C | 22.3°C | 29.5°C | 122 mm | 70% | 2 m/s | 5.6 |
| 1998 | 33.5°C | 22.2°C | 27.8°C | 131 mm | 80% | 2.1 m/s | 5.3 |
| 1997 | 35.7°C | 22.4°C | 29.1°C | 124 mm | 75% | 1.9 m/s | 5.2 |
| 1996 | 32.6°C | 21.9°C | 27.3°C | 194 mm | 82% | 1.9 m/s | 5.2 |
| 1995 | 33.9°C | 22.0°C | 27.9°C | 138 mm | 78% | 2 m/s | 5.1 |
| 1994 | 38.0°C | 19.2°C | 28.6°C | 45 mm | 66% | 2.1 m/s | 5.8 |
| 1993 | 33.8°C | 21.5°C | 27.7°C | 102 mm | 77% | 1.9 m/s | 5.3 |
| 1992 | 37.1°C | 22.3°C | 29.7°C | 95 mm | 70% | 1.9 m/s | 5.1 |
| 1991 | 35.3°C | 21.8°C | 28.6°C | 109 mm | 74% | 1.8 m/s | 5.3 |
| 1990 | 37.5°C | 21.5°C | 29.5°C | 139 mm | 72% | 1.8 m/s | 5.1 |
| 1989 | 35.6°C | 21.6°C | 28.6°C | 177 mm | 75% | 2 m/s | 5 |
| 1988 | 32.8°C | 20.3°C | 26.5°C | 172 mm | 84% | 1.9 m/s | 5.2 |
| 1987 | 37.5°C | 22.2°C | 29.8°C | 74 mm | 71% | 1.7 m/s | 5.4 |
| 1986 | 37.9°C | 22.1°C | 30.0°C | 143 mm | 69% | 1.7 m/s | 5.7 |
| 1985 | 35.5°C | 20.6°C | 28.1°C | 130 mm | 76% | 1.8 m/s | 5.5 |
| 1984 | 38.1°C | 21.0°C | 29.6°C | 135 mm | 66% | 2.1 m/s | 5.5 |
| 1983 | 33.1°C | 20.2°C | 26.6°C | 175 mm | 81% | 2.2 m/s | — |
| 1982 | 38.4°C | 21.2°C | 29.8°C | 94 mm | 69% | 1.9 m/s | — |
| 1981 | 32.5°C | 21.5°C | 27.0°C | 188 mm | 84% | 1.7 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 35.4°C with lows near 21.5°C (mean 28.5°C), based on 45 years of NASA POWER data.
September averages 138 mm of rainfall in Ranipet, a relatively wet time of year. The wettest on record was 236 mm in 2023.
The hottest September reached 38.6°C in 2018. The coldest dipped to 19.2°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have held steady by about 0°C. Daytime highs moved from 35.5°C to 34.7°C and overnight lows from 20.9°C to 21.6°C over the same span.
September is close to Ranipet's year-round average and a relatively wet time of year, so plan for around 35.4°C daytime highs and 21.5°C at night.
Not quite — September is the 6th coolest month in Ranipet, averaging 28.5°C.
For September in Ranipet, pack light, breathable clothing and sun protection, with typical highs of 35.4°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 76% — quite humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.2 m/s (1983).
The wettest September on record was 2023 with 236 mm. On average, September sees 138 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 Ranipet 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.
