September is one of the warmer months of the year in Hooghly, with average highs near 30.8°C and lows around 25.1°C (mean 28°C). It is a relatively wet time of year, averaging 226 mm of rainfall and 89% relative humidity across the period.
September is one of the warmer months of the year in Hooghly. Across 45 years of records, the warmest September in Hooghly was 2023 — when the month averaged 28.7°C — while the coldest was 1984 at 27.1°C. Typical September days reach 30.8°C with nights near 25.1°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Hooghly, averaging 226 mm of rainfall. The wettest September on record was 2021 with 442 mm, while the driest was 1994 at 83 mm.
Relative humidity in Hooghly during September averages 89%. The most humid September was 1999 at 92%, and the least humid was 1992 at 84%.
September receives about 4.3 kWh/m²/day of solar energy in Hooghly. The sunniest September was 1994 at 5 kWh/m²/day, and the cloudiest were 2021 and 2023 at 3.7.
Average wind speed in Hooghly during September is 1.9 m/s. The windiest Septembers were 1983, 2004 and 2011 at 2.3 m/s, while the calmest were 2001 and 2015 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.0°C | 27.7°C | 27.8°C | 28.1°C | 28.3°C | +0.3°C |
| Avg High | 31.1°C | 30.5°C | 30.4°C | 30.9°C | 30.9°C | -0.2°C |
| Avg Low | 24.8°C | 24.9°C | 25.1°C | 25.2°C | 25.7°C | +0.9°C |
| Avg Rain | 180 mm | 215 mm | 243 mm | 231 mm | 274 mm | +94 mm |
September temperatures in Hooghly have risen by about 0.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 18.9°C (1994) to a record high of 34.9°C (1992).
Rainfall in September is a relatively wet time of year, averaging 226 mm, with a wettest year of 442 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Hooghly
September is a good time to visit Hooghly, with days averaging 30.8°C and nights around 25.1°C (mean 28°C, warmer than Hooghly's yearly average) and higher rainfall. November and February 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 | 31.0°C | 28.2°C | 25.5°C | 32.4°C | 24.1°C | 196 mm | 89% | 1.6 m/s | 4.4 |
| 2024 | 30.9°C | 28.5°C | 26.1°C | 32.8°C | 24.7°C | 396 mm | 90% | 2.1 m/s | 4.2 |
| 2023 🔥 | 31.4°C | 28.7°C | 26.0°C | 33.7°C | 25.1°C | 257 mm | 89% | 1.9 m/s | 3.7 |
| 2022 | 30.8°C | 28.2°C | 25.5°C | 32.9°C | 24.7°C | 220 mm | 89% | 1.8 m/s | 4.2 |
| 2021 🌧️ | 30.3°C | 27.8°C | 25.3°C | 32.3°C | 24.6°C | 442 mm | 91% | 1.9 m/s | 3.7 |
| 2020 | 31.0°C | 28.4°C | 25.8°C | 33.0°C | 24.1°C | 134 mm | 90% | 1.7 m/s | 4.2 |
| 2019 | 30.9°C | 28.2°C | 25.4°C | 33.2°C | 23.1°C | 257 mm | 89% | 1.9 m/s | 4 |
| 2018 | 31.2°C | 28.2°C | 25.2°C | 32.7°C | 23.3°C | 178 mm | 88% | 1.7 m/s | 4.5 |
| 2017 | 31.0°C | 28.3°C | 25.6°C | 33.9°C | 24.9°C | 215 mm | 90% | 1.6 m/s | 4.3 |
| 2016 | 31.1°C | 28.1°C | 25.2°C | 32.3°C | 24.3°C | 256 mm | 89% | 1.6 m/s | 4.4 |
| 2015 | 31.5°C | 28.3°C | 25.0°C | 33.4°C | 22.4°C | 190 mm | 86% | 1.5 m/s | 4.4 |
| 2014 | 31.4°C | 28.2°C | 24.9°C | 33.0°C | 22.0°C | 202 mm | 87% | 1.8 m/s | 4.7 |
| 2013 | 30.6°C | 28.0°C | 25.3°C | 32.9°C | 24.1°C | 239 mm | 90% | 1.6 m/s | 4.3 |
| 2012 | 30.6°C | 27.8°C | 25.0°C | 32.6°C | 21.6°C | 219 mm | 89% | 1.9 m/s | 4.5 |
| 2011 | 30.2°C | 27.6°C | 25.1°C | 32.8°C | 22.7°C | 279 mm | 91% | 2.3 m/s | 4 |
| 2010 | 30.9°C | 27.9°C | 25.0°C | 32.7°C | 22.1°C | 273 mm | 88% | 1.7 m/s | 4.5 |
| 2009 | 30.6°C | 27.9°C | 25.2°C | 32.6°C | 24.5°C | 329 mm | 90% | 1.8 m/s | 4.5 |
| 2008 | 30.2°C | 27.5°C | 24.9°C | 31.6°C | 22.9°C | 246 mm | 90% | 1.8 m/s | 4.5 |
| 2007 | 30.0°C | 27.6°C | 25.2°C | 32.0°C | 23.7°C | 421 mm | 92% | 2.1 m/s | 3.9 |
| 2006 | 30.3°C | 27.7°C | 25.1°C | 32.9°C | 24.1°C | 320 mm | 89% | 1.9 m/s | 4.3 |
| 2005 | 30.6°C | 28.0°C | 25.3°C | 33.2°C | 24.4°C | 134 mm | 89% | 1.9 m/s | 4.6 |
| 2004 | 29.9°C | 27.5°C | 25.1°C | 32.3°C | 23.8°C | 281 mm | 91% | 2.3 m/s | 4.2 |
| 2003 | 31.0°C | 28.2°C | 25.5°C | 32.9°C | 24.3°C | 124 mm | 89% | 1.8 m/s | 4.3 |
| 2002 | 30.2°C | 27.5°C | 24.8°C | 32.9°C | 23.8°C | 170 mm | 90% | 1.9 m/s | 4.3 |
| 2001 | 30.9°C | 28.0°C | 25.1°C | 32.7°C | 23.5°C | 185 mm | 88% | 1.5 m/s | 4.6 |
| 2000 | 30.4°C | 27.6°C | 24.9°C | 31.9°C | 21.4°C | 216 mm | 90% | 2.1 m/s | 4.1 |
| 1999 | 29.8°C | 27.4°C | 25.1°C | 31.7°C | 23.6°C | 380 mm | 92% | 2.1 m/s | 3.8 |
| 1998 | 30.5°C | 27.9°C | 25.3°C | 33.0°C | 24.4°C | 203 mm | 90% | 1.6 m/s | 4.4 |
| 1997 | 30.3°C | 27.5°C | 24.8°C | 32.0°C | 22.4°C | 179 mm | 90% | 1.7 m/s | 4.1 |
| 1996 | 31.0°C | 28.0°C | 24.9°C | 33.6°C | 23.8°C | 84 mm | 88% | 1.6 m/s | 4.7 |
| 1995 | 30.3°C | 27.8°C | 25.3°C | 32.6°C | 23.8°C | 333 mm | 90% | 2.1 m/s | 3.8 |
| 1994 | 31.0°C | 27.4°C | 23.8°C | 32.3°C | 18.9°C | 83 mm | 85% | 2 m/s | 5 |
| 1993 | 29.9°C | 27.4°C | 25.0°C | 32.8°C | 24.0°C | 249 mm | 90% | 2.2 m/s | 3.8 |
| 1992 | 31.6°C | 28.1°C | 24.5°C | 34.9°C | 23.0°C | 145 mm | 84% | 2.1 m/s | 4.6 |
| 1991 | 30.5°C | 27.8°C | 25.0°C | 32.4°C | 22.9°C | 221 mm | 89% | 1.8 m/s | 4.2 |
| 1990 | 30.5°C | 27.8°C | 25.1°C | 31.8°C | 23.9°C | 274 mm | 90% | 2 m/s | 4.1 |
| 1989 | 31.1°C | 28.1°C | 25.2°C | 33.2°C | 23.5°C | 201 mm | 88% | 2 m/s | 4.1 |
| 1988 | 31.0°C | 28.1°C | 25.3°C | 33.0°C | 24.2°C | 177 mm | 89% | 1.8 m/s | 4.5 |
| 1987 | 31.3°C | 28.4°C | 25.4°C | 33.0°C | 24.0°C | 134 mm | 89% | 2.2 m/s | 4.3 |
| 1986 | 31.0°C | 27.8°C | 24.5°C | 34.1°C | 22.5°C | 347 mm | 85% | 2.2 m/s | 4.2 |
| 1985 | 30.9°C | 27.8°C | 24.7°C | 32.5°C | 23.0°C | 166 mm | 88% | 2.1 m/s | 4.4 |
| 1984 ❄️ | 30.4°C | 27.1°C | 23.8°C | 32.3°C | 20.2°C | 91 mm | 86% | 1.8 m/s | 4.7 |
| 1983 | 31.8°C | 28.5°C | 25.1°C | 33.6°C | 23.8°C | 133 mm | 85% | 2.3 m/s | — |
| 1982 | 31.7°C | 28.0°C | 24.3°C | 33.3°C | 20.2°C | 98 mm | 85% | 1.9 m/s | — |
| 1981 | 30.6°C | 27.9°C | 25.2°C | 33.2°C | 23.6°C | 273 mm | 89% | 1.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30.8°C with lows near 25.1°C (mean 28°C), based on 45 years of NASA POWER data.
September averages 226 mm of rainfall in Hooghly, a relatively wet time of year. The wettest on record was 442 mm in 2021.
The hottest September reached 34.9°C in 1992. The coldest dipped to 18.9°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.4°C — but days and nights have moved in opposite directions. Overnight lows rose from 24.6°C to 25.7°C while daytime highs eased from 31.1°C to 30.9°C, narrowing the gap between day and night.
September is one of the warmer months of the year in Hooghly and a relatively wet time of year, so plan for around 30.8°C daytime highs and 25.1°C at night.
Not quite — September is the 7th coolest month in Hooghly, averaging 28°C.
For September in Hooghly, pack light, breathable clothing and sun protection, with typical highs of 30.8°C and lows of 25.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 89% — quite humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.3 m/s (1983).
The wettest September on record was 2021 with 442 mm. On average, September sees 226 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 Hooghly 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.
