September is one of the warmer months of the year in Lucknow, with average highs near 34.5°C and lows around 21.1°C (mean 27.8°C). It is a relatively wet time of year, averaging 175 mm of rainfall and 81% relative humidity across the period.
September is one of the warmer months of the year in Lucknow. Across 45 years of records, the warmest September in Lucknow was 2004 — when the month averaged 30.2°C — while the coldest was 1994 at 24.9°C. Typical September days reach 34.5°C with nights near 21.1°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 | 28.1°C | 27.3°C | 28.0°C | 27.4°C | 28.5°C | +0.4°C |
| Avg High | 35.5°C | 33.9°C | 34.8°C | 33.9°C | 34.6°C | -0.9°C |
| Avg Low | 20.6°C | 20.7°C | 21.3°C | 20.8°C | 22.5°C | +1.9°C |
| Avg Rain | 193 mm | 151 mm | 170 mm | 166 mm | 211 mm | +18 mm |
September temperatures in Lucknow have risen by about 1.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.8°C (1994) to a record high of 38.4°C (1986).
Rainfall in September is a relatively wet time of year, averaging 175 mm, with a wettest year of 419 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A good time to visit Lucknow
September is a good time to visit Lucknow, with days averaging 34.5°C and nights around 21.1°C (mean 27.8°C, warmer than Lucknow's yearly average) and higher rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 34.0°C | 22.3°C | 28.1°C | 245 mm | 87% | 1.6 m/s | 4.4 |
| 2024 | 33.3°C | 23.6°C | 28.5°C | 241 mm | 88% | 1.9 m/s | 4.3 |
| 2023 | 34.5°C | 22.5°C | 28.5°C | 192 mm | 85% | 1.7 m/s | 4.6 |
| 2022 | 36.2°C | 22.7°C | 29.4°C | 281 mm | 82% | 2.1 m/s | 4.3 |
| 2021 | 33.4°C | 23.7°C | 28.5°C | 210 mm | 88% | 2 m/s | 4.5 |
| 2020 | 36.1°C | 20.1°C | 28.1°C | 98 mm | 78% | 1.6 m/s | 4.7 |
| 2019 | 33.9°C | 21.0°C | 27.5°C | 303 mm | 88% | 2 m/s | 3.7 |
| 2018 | 31.8°C | 19.7°C | 25.7°C | 127 mm | 87% | 2.1 m/s | 4.6 |
| 2017 | 34.0°C | 21.8°C | 27.9°C | 134 mm | 82% | 1.6 m/s | 5 |
| 2016 | 33.9°C | 22.7°C | 28.3°C | 126 mm | 84% | 1.7 m/s | 4.7 |
| 2015 | 38.3°C | 20.1°C | 29.2°C | 21 mm | 59% | 1.9 m/s | 5.6 |
| 2014 | 36.0°C | 19.8°C | 27.9°C | 145 mm | 72% | 1.9 m/s | 4.9 |
| 2013 | 33.5°C | 22.8°C | 28.2°C | 92 mm | 82% | 1.7 m/s | 5.2 |
| 2012 | 32.4°C | 19.3°C | 25.9°C | 306 mm | 87% | 1.9 m/s | 4.7 |
| 2011 | 32.6°C | 21.6°C | 27.1°C | 171 mm | 86% | 1.9 m/s | 4.9 |
| 2010 | 33.0°C | 19.6°C | 26.3°C | 232 mm | 88% | 2 m/s | 4.6 |
| 2009 | 33.1°C | 21.8°C | 27.5°C | 251 mm | 85% | 1.6 m/s | 4.8 |
| 2008 | 33.2°C | 20.3°C | 26.7°C | 235 mm | 86% | 1.8 m/s | 5.4 |
| 2007 | 33.9°C | 21.6°C | 27.7°C | 173 mm | 84% | 1.9 m/s | 4.8 |
| 2006 | 34.9°C | 21.6°C | 28.2°C | 78 mm | 74% | 1.6 m/s | 5.4 |
| 2005 | 34.2°C | 21.7°C | 28.0°C | 156 mm | 85% | 2.4 m/s | 4.6 |
| 2004 🔥 | 38.2°C | 22.2°C | 30.2°C | 140 mm | 70% | 1.6 m/s | 5.2 |
| 2003 | 33.9°C | 23.0°C | 28.4°C | 260 mm | 84% | 1.6 m/s | 3.6 |
| 2002 | 36.4°C | 19.8°C | 28.1°C | 210 mm | 77% | 1.8 m/s | 4.5 |
| 2001 | 36.7°C | 21.2°C | 28.9°C | 81 mm | 68% | 1.3 m/s | 5.6 |
| 2000 | 33.0°C | 20.0°C | 26.5°C | 112 mm | 82% | 1.3 m/s | 5 |
| 1999 | 33.1°C | 23.1°C | 28.1°C | 177 mm | 83% | 1.7 m/s | 4.3 |
| 1998 | 33.2°C | 23.1°C | 28.2°C | 81 mm | 85% | 2 m/s | 5.2 |
| 1997 | 35.7°C | 20.1°C | 27.9°C | 180 mm | 75% | 1.7 m/s | 4.8 |
| 1996 | 33.6°C | 21.9°C | 27.8°C | 118 mm | 83% | 1.5 m/s | 5 |
| 1995 | 34.3°C | 21.3°C | 27.8°C | 116 mm | 81% | 2 m/s | 5.1 |
| 1994 ❄️ | 34.1°C | 15.8°C | 24.9°C | 83 mm | 76% | 2 m/s | 5.3 |
| 1993 | 33.5°C | 21.6°C | 27.6°C | 200 mm | 82% | 2.6 m/s | 4.1 |
| 1992 | 34.8°C | 19.4°C | 27.1°C | 151 mm | 75% | 1.7 m/s | 4.7 |
| 1991 | 32.4°C | 18.9°C | 25.6°C | 241 mm | 83% | 1.4 m/s | 4.9 |
| 1990 | 33.8°C | 21.7°C | 27.8°C | 161 mm | 87% | 2.3 m/s | 4.5 |
| 1989 | 36.8°C | 22.7°C | 29.8°C | 200 mm | 79% | 1.8 m/s | 4.9 |
| 1988 | 34.2°C | 22.1°C | 28.1°C | 63 mm | 84% | 1.9 m/s | 5.4 |
| 1987 | 38.4°C | 19.7°C | 29.1°C | 177 mm | 71% | 1.7 m/s | 5.1 |
| 1986 | 38.4°C | 20.4°C | 29.4°C | 68 mm | 62% | 2.3 m/s | 5.2 |
| 1985 🌧️ | 36.7°C | 20.9°C | 28.8°C | 419 mm | 83% | 2.4 m/s | 4.7 |
| 1984 | 33.2°C | 17.5°C | 25.3°C | 149 mm | 83% | 2.1 m/s | 5.6 |
| 1983 | 33.9°C | 23.5°C | 28.7°C | 224 mm | 84% | 2.2 m/s | — |
| 1982 | 33.7°C | 16.9°C | 25.3°C | 204 mm | 83% | 1.8 m/s | — |
| 1981 | 34.1°C | 22.0°C | 28.0°C | 235 mm | 85% | 1.8 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 21.1°C (mean 27.8°C), based on 45 years of NASA POWER data.
September averages 175 mm of rainfall in Lucknow, a relatively wet time of year. The wettest on record was 419 mm in 1985.
The hottest September reached 38.4°C in 1986. The coldest dipped to 15.8°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.4°C. Daytime highs moved from 34.3°C to 34.3°C and overnight lows from 20.2°C to 23°C over the same span.
September is one of the warmer months of the year in Lucknow and a relatively wet time of year, so plan for around 34.5°C daytime highs and 21.1°C at night.
Not quite — September is the 7th coolest month in Lucknow, averaging 27.8°C.
For September in Lucknow, pack light, breathable clothing and sun protection, with typical highs of 34.5°C and lows of 21.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 81% — quite humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.6 m/s (1993).
The wettest September on record was 1985 with 419 mm. On average, September sees 175 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 Lucknow 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.
