September is one of the warmer months of the year in Gandhinagar, with average highs near 33.3°C and lows around 24°C (mean 28.7°C). It is a relatively wet time of year, averaging 110 mm of rainfall and 75% relative humidity across the period.
September is one of the warmer months of the year in Gandhinagar. Across 45 years of records, the warmest September in Gandhinagar was 1999 — when the month averaged 32.6°C — while the coldest was 1994 at 26.3°C. Typical September days reach 33.3°C with nights near 24°C. The long-term trend is cooling, about 0.4°C per decade.
September is a relatively wet time of year in Gandhinagar, averaging 110 mm of rainfall. The wettest September on record was 1994 with 360 mm, while the driest was 1986 at 0 mm.
Relative humidity in Gandhinagar during September averages 75%. The most humid September was 2019 at 89%, and the least humid was 1986 at 45%.
September receives about 5.3 kWh/m²/day of solar energy in Gandhinagar. The sunniest September was 2009 at 6.4 kWh/m²/day, and the cloudiest was 2019 at 4.
Average wind speed in Gandhinagar during September is 2 m/s. The windiest September was 1999 at 2.6 m/s, while the calmest was 1981 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.4°C | 28.9°C | 28.9°C | 28.0°C | 28.0°C | -1.4°C |
| Avg High | 34.8°C | 33.9°C | 33.6°C | 32.1°C | 31.5°C | -3.3°C |
| Avg Low | 24.0°C | 23.9°C | 24.1°C | 23.9°C | 24.5°C | +0.5°C |
| Avg Rain | 48 mm | 110 mm | 83 mm | 149 mm | 180 mm | +132 mm |
September temperatures in Gandhinagar have fallen by about 0.6°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 18.3°C (1994) to a record high of 42.1°C (1986).
Rainfall in September is a relatively wet time of year, averaging 110 mm, with a wettest year of 360 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.8°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Gandhinagar
September is a good time to visit Gandhinagar, with days averaging 33.3°C and nights around 24°C (mean 28.7°C, close to Gandhinagar's yearly average) and higher rainfall. December and January 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 | 31.1°C | 27.5°C | 23.9°C | 33.9°C | 22.4°C | 167 mm | 85% | 2.2 m/s | 4.5 |
| 2024 | 30.9°C | 27.6°C | 24.4°C | 32.5°C | 22.3°C | 215 mm | 87% | 2.2 m/s | 4.5 |
| 2023 | 32.5°C | 28.5°C | 24.5°C | 35.5°C | 22.6°C | 227 mm | 80% | 2.3 m/s | 4.9 |
| 2022 | 31.3°C | 27.7°C | 24.1°C | 33.7°C | 21.4°C | 81 mm | 85% | 2.1 m/s | 5.2 |
| 2021 | 31.8°C | 28.6°C | 25.4°C | 35.6°C | 24.4°C | 274 mm | 84% | 2.4 m/s | 4.1 |
| 2020 | 31.4°C | 28.0°C | 24.6°C | 32.7°C | 22.0°C | 114 mm | 85% | 1.5 m/s | 5.1 |
| 2019 | 30.7°C | 27.9°C | 25.2°C | 32.4°C | 24.2°C | 286 mm | 89% | 1.9 m/s | 4 |
| 2018 | 33.5°C | 28.1°C | 22.7°C | 38.9°C | 21.0°C | 43 mm | 71% | 1.9 m/s | 5 |
| 2017 | 31.7°C | 27.6°C | 23.5°C | 33.1°C | 20.9°C | 66 mm | 81% | 1.5 m/s | 5.2 |
| 2016 | 33.4°C | 28.4°C | 23.5°C | 35.7°C | 21.2°C | 76 mm | 75% | 2 m/s | 5.5 |
| 2015 | 34.7°C | 29.3°C | 23.9°C | 39.2°C | 20.1°C | 100 mm | 69% | 2 m/s | 5.6 |
| 2014 | 31.3°C | 27.5°C | 23.6°C | 33.2°C | 21.8°C | 165 mm | 83% | 1.8 m/s | 4.8 |
| 2013 | 32.2°C | 28.2°C | 24.2°C | 36.9°C | 22.2°C | 257 mm | 80% | 2.1 m/s | 5 |
| 2012 | 31.5°C | 27.9°C | 24.2°C | 34.3°C | 21.3°C | 242 mm | 83% | 2 m/s | 4.7 |
| 2011 | 30.7°C | 27.2°C | 23.8°C | 32.1°C | 20.9°C | 115 mm | 86% | 2.1 m/s | 4.7 |
| 2010 | 30.9°C | 27.4°C | 23.9°C | 32.5°C | 20.7°C | 140 mm | 84% | 1.9 m/s | 5 |
| 2009 | 34.6°C | 29.2°C | 23.7°C | 39.2°C | 21.7°C | 23 mm | 74% | 2 m/s | 6.4 |
| 2008 | 32.2°C | 28.1°C | 23.9°C | 36.1°C | 20.4°C | 150 mm | 80% | 1.7 m/s | 5.4 |
| 2007 | 31.2°C | 27.7°C | 24.3°C | 33.4°C | 21.0°C | 101 mm | 85% | 1.7 m/s | 5.4 |
| 2006 | 31.2°C | 27.6°C | 24.0°C | 32.7°C | 22.4°C | 133 mm | 86% | 1.7 m/s | 5.3 |
| 2005 | 31.8°C | 28.1°C | 24.4°C | 35.5°C | 21.2°C | 305 mm | 83% | 1.9 m/s | 4.8 |
| 2004 | 32.0°C | 27.9°C | 23.7°C | 34.2°C | 21.7°C | 28 mm | 82% | 1.6 m/s | 5.8 |
| 2003 | 31.1°C | 27.4°C | 23.6°C | 33.3°C | 22.1°C | 29 mm | 84% | 2.1 m/s | 4.8 |
| 2002 | 36.5°C | 30.2°C | 23.8°C | 40.5°C | 20.9°C | 55 mm | 60% | 2.2 m/s | 6 |
| 2001 | 38.1°C | 31.7°C | 25.2°C | 41.9°C | 22.7°C | 6 mm | 55% | 2.1 m/s | 5.9 |
| 2000 | 37.2°C | 30.8°C | 24.5°C | 40.8°C | 22.7°C | 5 mm | 57% | 1.9 m/s | 5.6 |
| 1999 🔥 | 38.4°C | 32.6°C | 26.7°C | 40.0°C | 25.2°C | 36 mm | 52% | 2.6 m/s | 5.6 |
| 1998 | 33.1°C | 28.9°C | 24.6°C | 35.3°C | 22.9°C | 122 mm | 80% | 2.3 m/s | 5.2 |
| 1997 | 31.8°C | 27.6°C | 23.4°C | 34.5°C | 20.4°C | 84 mm | 82% | 1.9 m/s | 5.5 |
| 1996 | 33.0°C | 28.1°C | 23.2°C | 35.5°C | 21.3°C | 60 mm | 76% | 1.8 m/s | 5.3 |
| 1995 | 36.7°C | 30.7°C | 24.7°C | 39.7°C | 22.2°C | 59 mm | 60% | 2.2 m/s | 5.9 |
| 1994 ❄️ 🌧️ | 30.2°C | 26.3°C | 22.3°C | 31.8°C | 18.3°C | 360 mm | 83% | 2 m/s | 5.3 |
| 1993 | 36.5°C | 30.9°C | 25.3°C | 39.0°C | 23.6°C | 90 mm | 60% | 2.3 m/s | 5.8 |
| 1992 | 32.4°C | 27.2°C | 21.9°C | 35.9°C | 19.1°C | 157 mm | 74% | 2 m/s | 5.4 |
| 1991 | 35.0°C | 29.1°C | 23.2°C | 38.9°C | 21.8°C | 10 mm | 64% | 2 m/s | 5.6 |
| 1990 | 31.4°C | 27.6°C | 23.8°C | 32.4°C | 21.7°C | 118 mm | 83% | 2 m/s | 5.2 |
| 1989 | 34.1°C | 29.1°C | 24.0°C | 37.6°C | 22.3°C | 14 mm | 70% | 1.7 m/s | 5.8 |
| 1988 | 33.1°C | 29.0°C | 24.8°C | 36.3°C | 23.5°C | 86 mm | 80% | 2 m/s | 5.7 |
| 1987 | 38.8°C | 32.1°C | 25.4°C | 41.8°C | 23.6°C | 1 mm | 51% | 2.4 m/s | 6.3 |
| 1986 | 38.6°C | 31.5°C | 24.4°C | 42.1°C | 22.8°C | 0 mm | 45% | 2 m/s | 6.3 |
| 1985 | 37.0°C | 30.6°C | 24.2°C | 40.3°C | 22.5°C | 19 mm | 56% | 2.4 m/s | 6.1 |
| 1984 | 32.8°C | 27.6°C | 22.3°C | 36.6°C | 20.7°C | 83 mm | 73% | 2.1 m/s | 5.5 |
| 1983 | 33.1°C | 28.7°C | 24.3°C | 36.8°C | 22.1°C | 89 mm | 78% | 1.8 m/s | — |
| 1982 | 33.3°C | 27.9°C | 22.5°C | 36.9°C | 19.4°C | 5 mm | 74% | 1.8 m/s | — |
| 1981 | 32.2°C | 28.2°C | 24.3°C | 34.5°C | 22.7°C | 134 mm | 81% | 1.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 33.3°C with lows near 24°C (mean 28.7°C), based on 45 years of NASA POWER data.
September averages 110 mm of rainfall in Gandhinagar, a relatively wet time of year. The wettest on record was 360 mm in 1994.
The hottest September reached 42.1°C in 1986. The coldest dipped to 18.3°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.6°C — but days and nights have moved in opposite directions. Overnight lows rose from 23.5°C to 24.5°C while daytime highs eased from 33.7°C to 31.5°C, narrowing the gap between day and night.
September is one of the warmer months of the year in Gandhinagar and a relatively wet time of year, so plan for around 33.3°C daytime highs and 24°C at night.
Not quite — September is the 8th coolest month in Gandhinagar, averaging 28.7°C.
For September in Gandhinagar, pack light, breathable clothing and sun protection, with typical highs of 33.3°C and lows of 24°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 75% — quite humid.
Average wind speed in September is 2 m/s. The windiest September on record averaged 2.6 m/s (1999).
The wettest September on record was 1994 with 360 mm. On average, September sees 110 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 Gandhinagar 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.
