September is one of the warmer months of the year in East Delhi, with average highs near 36.4°C and lows around 20°C (mean 28.2°C). It is a relatively wet time of year, averaging 126 mm of rainfall and 70% relative humidity across the period.
September is one of the warmer months of the year in East Delhi. Across 45 years of records, the warmest September in East Delhi was 1999 — when the month averaged 31.9°C — while the coldest was 1994 at 24.3°C. Typical September days reach 36.4°C with nights near 20°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 | 28.8°C | 27.8°C | 28.6°C | 27.6°C | 28.6°C | -0.2°C |
| Avg High | 37.6°C | 35.8°C | 37.2°C | 35.5°C | 36.0°C | -1.6°C |
| Avg Low | 20.1°C | 19.8°C | 20.0°C | 19.6°C | 21.1°C | +1°C |
| Avg Rain | 89 mm | 137 mm | 118 mm | 127 mm | 176 mm | +87 mm |
September temperatures in East Delhi have risen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.1°C (1994) to a record high of 41.3°C (1986).
Rainfall in September is a relatively wet time of year, averaging 126 mm, with a wettest year of 293 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit East Delhi
September is a good time to visit East Delhi, with days averaging 36.4°C and nights around 20°C (mean 28.2°C, warmer than East Delhi's yearly average) and higher rainfall. November and March are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 33.5°C | 19.8°C | 26.7°C | 170 mm | 83% | 1.8 m/s | 4.8 |
| 2024 | 34.6°C | 22.6°C | 28.6°C | 278 mm | 84% | 1.6 m/s | 4.1 |
| 2023 | 36.5°C | 19.7°C | 28.1°C | 140 mm | 77% | 1.7 m/s | 5 |
| 2022 | 40.0°C | 22.0°C | 31.0°C | 257 mm | 69% | 1.8 m/s | 4.5 |
| 2021 | 33.0°C | 21.8°C | 27.4°C | 197 mm | 86% | 1.9 m/s | 4.2 |
| 2020 | 38.4°C | 20.5°C | 29.5°C | 14 mm | 60% | 1.7 m/s | 5.3 |
| 2019 | 38.4°C | 22.5°C | 30.4°C | 77 mm | 71% | 1.6 m/s | 4.3 |
| 2018 | 33.0°C | 19.2°C | 26.1°C | 170 mm | 81% | 1.9 m/s | 4.5 |
| 2017 | 38.2°C | 18.2°C | 28.2°C | 158 mm | 62% | 1.6 m/s | 4.9 |
| 2016 | 37.2°C | 22.0°C | 29.6°C | 41 mm | 63% | 1.5 m/s | 5.4 |
| 2015 | 39.0°C | 19.1°C | 29.1°C | 51 mm | 51% | 1.9 m/s | 5.8 |
| 2014 | 38.1°C | 21.0°C | 29.6°C | 69 mm | 59% | 2 m/s | 5.4 |
| 2013 | 32.9°C | 19.9°C | 26.4°C | 110 mm | 78% | 1.6 m/s | 5.4 |
| 2012 | 33.2°C | 17.1°C | 25.1°C | 89 mm | 79% | 1.8 m/s | 5.1 |
| 2011 | 33.0°C | 19.1°C | 26.1°C | 207 mm | 84% | 1.7 m/s | 5.1 |
| 2010 🌧️ | 32.4°C | 17.6°C | 25.0°C | 293 mm | 86% | 1.6 m/s | 4 |
| 2009 | 34.9°C | 20.1°C | 27.5°C | 177 mm | 76% | 1.5 m/s | 5.2 |
| 2008 | 35.2°C | 19.1°C | 27.2°C | 169 mm | 80% | 1.4 m/s | 5.3 |
| 2007 | 36.5°C | 21.0°C | 28.8°C | 92 mm | 68% | 1.3 m/s | 5 |
| 2006 | 36.8°C | 19.9°C | 28.3°C | 101 mm | 66% | 1.7 m/s | 5.5 |
| 2005 | 40.2°C | 19.6°C | 29.9°C | 227 mm | 71% | 2.2 m/s | 4.8 |
| 2004 | 39.3°C | 20.8°C | 30.1°C | 23 mm | 57% | 1.8 m/s | 5.6 |
| 2003 | 34.2°C | 20.2°C | 27.2°C | 123 mm | 79% | 1.2 m/s | 4.2 |
| 2002 | 36.3°C | 19.2°C | 27.7°C | 192 mm | 71% | 1.5 m/s | 4.7 |
| 2001 | 39.7°C | 20.8°C | 30.2°C | 40 mm | 46% | 1.7 m/s | 5.8 |
| 2000 | 39.4°C | 19.5°C | 29.5°C | 31 mm | 54% | 1.5 m/s | 5.4 |
| 1999 🔥 | 40.6°C | 23.2°C | 31.9°C | 107 mm | 63% | 1.7 m/s | 4.5 |
| 1998 | 36.8°C | 21.6°C | 29.2°C | 175 mm | 76% | 1.7 m/s | 4.9 |
| 1997 | 38.5°C | 20.9°C | 29.7°C | 65 mm | 57% | 1.8 m/s | 5.1 |
| 1996 | 34.4°C | 18.6°C | 26.5°C | 151 mm | 78% | 1.5 m/s | 5.2 |
| 1995 | 33.6°C | 18.1°C | 25.9°C | 170 mm | 77% | 1.4 m/s | 5.4 |
| 1994 ❄️ | 33.4°C | 15.1°C | 24.3°C | 12 mm | 75% | 2 m/s | 5.8 |
| 1993 | 36.0°C | 21.0°C | 28.5°C | 206 mm | 75% | 1.6 m/s | 4.5 |
| 1992 | 36.3°C | 19.2°C | 27.7°C | 107 mm | 64% | 1.9 m/s | 5.2 |
| 1991 | 33.5°C | 18.1°C | 25.8°C | 132 mm | 75% | 1.6 m/s | 5.5 |
| 1990 | 34.4°C | 22.0°C | 28.2°C | 245 mm | 81% | 1.5 m/s | 4.7 |
| 1989 | 38.6°C | 22.0°C | 30.3°C | 115 mm | 59% | 1.5 m/s | 5.3 |
| 1988 | 35.9°C | 20.7°C | 28.3°C | 148 mm | 79% | 1.9 m/s | 5.4 |
| 1987 | 41.2°C | 20.6°C | 30.9°C | 37 mm | 45% | 1.6 m/s | 5.8 |
| 1986 | 41.3°C | 21.2°C | 31.2°C | 70 mm | 45% | 2 m/s | 5.5 |
| 1985 | 35.8°C | 19.0°C | 27.4°C | 101 mm | 73% | 1.9 m/s | 5.2 |
| 1984 | 33.0°C | 17.2°C | 25.1°C | 132 mm | 77% | 1.6 m/s | 5.6 |
| 1983 | 35.3°C | 22.1°C | 28.7°C | 122 mm | 78% | 1.5 m/s | — |
| 1982 | 36.5°C | 15.8°C | 26.1°C | 7 mm | 62% | 1.7 m/s | — |
| 1981 | 40.4°C | 22.3°C | 31.3°C | 74 mm | 54% | 2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 36.4°C with lows near 20°C (mean 28.2°C), based on 45 years of NASA POWER data.
September averages 126 mm of rainfall in East Delhi, a relatively wet time of year. The wettest on record was 293 mm in 2010.
The hottest September reached 41.3°C in 1986. The coldest dipped to 15.1°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.7°C. Daytime highs moved from 36.2°C to 35.5°C and overnight lows from 19.3°C to 21.2°C over the same span.
September is one of the warmer months of the year in East Delhi and a relatively wet time of year, so plan for around 36.4°C daytime highs and 20°C at night.
Not quite — September is the 7th coolest month in East Delhi, averaging 28.2°C.
For September in East Delhi, pack light, breathable clothing and sun protection, with typical highs of 36.4°C and lows of 20°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 70% — moderately humid.
Average wind speed in September is 1.7 m/s. The windiest September on record averaged 2.2 m/s (2005).
The wettest September on record was 2010 with 293 mm. On average, September sees 126 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 East Delhi 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.
