September is one of the warmer months of the year in Nalbari, with average highs near 34°C and lows around 22.7°C (mean 28.4°C). It is a relatively wet time of year, averaging 218 mm of rainfall and 85% relative humidity across the period.
September is one of the warmer months of the year in Nalbari. Across 45 years of records, the warmest September in Nalbari was 2023 — when the month averaged 30.7°C — while the coldest was 1997 at 26.8°C. Typical September days reach 34°C with nights near 22.7°C. The long-term trend is warming, about 0.4°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.9°C | 28.0°C | 28.1°C | 28.7°C | 29.6°C | +1.7°C |
| Avg High | 33.5°C | 34.1°C | 33.7°C | 34.2°C | 35.2°C | +1.7°C |
| Avg Low | 22.2°C | 22.0°C | 22.6°C | 23.2°C | 24.0°C | +1.8°C |
| Avg Rain | 278 mm | 212 mm | 174 mm | 254 mm | 154 mm | -124 mm |
September temperatures in Nalbari have risen by about 1.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 19.6°C (1997) to a record high of 37.2°C (2023).
Rainfall in September is a relatively wet time of year, averaging 218 mm, with a wettest year of 411 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
A good time to visit Nalbari
September is a good time to visit Nalbari, with days averaging 34°C and nights around 22.7°C (mean 28.4°C, warmer than Nalbari'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 | 34.7°C | 24.3°C | 29.5°C | 134 mm | 84% | 1.5 m/s | 4.6 |
| 2024 | 36.4°C | 23.5°C | 30.0°C | 149 mm | 81% | 1.3 m/s | 4.6 |
| 2023 🔥 | 37.2°C | 24.2°C | 30.7°C | 118 mm | 78% | 1.4 m/s | 4.9 |
| 2022 | 34.7°C | 24.0°C | 29.3°C | 89 mm | 86% | 1.5 m/s | 4.4 |
| 2021 | 34.2°C | 24.3°C | 29.3°C | 161 mm | 84% | 1.3 m/s | 5 |
| 2020 | 34.2°C | 23.6°C | 28.9°C | 274 mm | 89% | 1.5 m/s | 3.7 |
| 2019 | 35.4°C | 22.1°C | 28.7°C | 345 mm | 85% | 1.2 m/s | 3.9 |
| 2018 | 34.0°C | 24.2°C | 29.1°C | 256 mm | 85% | 1.6 m/s | 4.1 |
| 2017 | 33.5°C | 24.0°C | 28.7°C | 247 mm | 88% | 1.5 m/s | 3.9 |
| 2016 | 33.6°C | 23.2°C | 28.4°C | 112 mm | 87% | 1.4 m/s | 4.1 |
| 2015 | 34.0°C | 23.7°C | 28.8°C | 282 mm | 86% | 1.4 m/s | 4.3 |
| 2014 🌧️ | 33.3°C | 23.4°C | 28.4°C | 411 mm | 86% | 1.4 m/s | 4.2 |
| 2013 | 34.7°C | 22.0°C | 28.4°C | 154 mm | 86% | 1.5 m/s | 4.6 |
| 2012 | 36.9°C | 23.7°C | 30.3°C | 183 mm | 88% | 1.8 m/s | 4.1 |
| 2011 | 33.8°C | 23.2°C | 28.5°C | 268 mm | 85% | 1.4 m/s | 4.6 |
| 2010 | 32.4°C | 22.2°C | 27.3°C | 289 mm | 86% | 1.4 m/s | 4.2 |
| 2009 | 33.7°C | 22.8°C | 28.3°C | 202 mm | 84% | 1.6 m/s | 4.8 |
| 2008 | 32.9°C | 23.1°C | 28.0°C | 123 mm | 84% | 1.4 m/s | 4.5 |
| 2007 | 32.9°C | 21.4°C | 27.1°C | 311 mm | 82% | 1.5 m/s | 4.1 |
| 2006 | 34.6°C | 22.8°C | 28.7°C | 124 mm | 84% | 1.6 m/s | 4.2 |
| 2005 | 35.5°C | 23.6°C | 29.6°C | 113 mm | 82% | 1.4 m/s | 4.8 |
| 2004 | 32.8°C | 22.2°C | 27.5°C | 142 mm | 86% | 1.7 m/s | 4.1 |
| 2003 | 33.5°C | 23.3°C | 28.4°C | 209 mm | 85% | 1.3 m/s | 4.5 |
| 2002 | 34.5°C | 22.2°C | 28.3°C | 161 mm | 83% | 1.6 m/s | 4.4 |
| 2001 | 32.6°C | 23.4°C | 28.0°C | 181 mm | 85% | 1.2 m/s | 4.2 |
| 2000 | 33.7°C | 21.2°C | 27.5°C | 173 mm | 86% | 1.4 m/s | 4.4 |
| 1999 | 33.1°C | 22.8°C | 28.0°C | 208 mm | 84% | 1.1 m/s | 4.5 |
| 1998 | 34.3°C | 23.3°C | 28.8°C | 224 mm | 82% | 1.3 m/s | 4.5 |
| 1997 ❄️ | 34.0°C | 19.6°C | 26.8°C | 191 mm | 85% | 1.5 m/s | 4.2 |
| 1996 | 34.1°C | 22.7°C | 28.4°C | 147 mm | 82% | 1.4 m/s | 4.5 |
| 1995 | 34.8°C | 21.5°C | 28.1°C | 375 mm | 86% | 1.5 m/s | 4.5 |
| 1994 | 34.2°C | 21.3°C | 27.7°C | 52 mm | 81% | 1.2 m/s | 5.3 |
| 1993 | 33.9°C | 22.9°C | 28.4°C | 276 mm | 85% | 1.3 m/s | 4.1 |
| 1992 | 34.2°C | 21.2°C | 27.7°C | 194 mm | 81% | 1.3 m/s | 4.3 |
| 1991 | 32.5°C | 22.9°C | 27.7°C | 221 mm | 86% | 1.3 m/s | 3.5 |
| 1990 | 35.4°C | 21.7°C | 28.5°C | 227 mm | 86% | 1.5 m/s | 3.8 |
| 1989 | 34.1°C | 22.6°C | 28.4°C | 348 mm | 85% | 1.5 m/s | 4.1 |
| 1988 | 33.0°C | 22.4°C | 27.7°C | 179 mm | 87% | 1.6 m/s | 3.8 |
| 1987 | 32.9°C | 22.1°C | 27.5°C | 372 mm | 85% | 1.2 m/s | 4.1 |
| 1986 | 33.4°C | 20.6°C | 27.0°C | 193 mm | 82% | 1.7 m/s | 3.8 |
| 1985 | 33.6°C | 23.3°C | 28.5°C | 316 mm | 84% | 1.4 m/s | 4.7 |
| 1984 | 33.5°C | 20.8°C | 27.2°C | 350 mm | 85% | 1.4 m/s | 3.8 |
| 1983 | 33.5°C | 23.3°C | 28.4°C | 336 mm | 85% | 1.6 m/s | — |
| 1982 | 34.3°C | 22.3°C | 28.3°C | 134 mm | 84% | 1.6 m/s | — |
| 1981 | 33.2°C | 22.7°C | 27.9°C | 277 mm | 86% | 1.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 34°C with lows near 22.7°C (mean 28.4°C), based on 45 years of NASA POWER data.
September averages 218 mm of rainfall in Nalbari, a relatively wet time of year. The wettest on record was 411 mm in 2014.
The hottest September reached 37.2°C in 2023. The coldest dipped to 19.6°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.7°C. Daytime highs moved from 33.6°C to 35.4°C and overnight lows from 22.5°C to 24.1°C over the same span.
September is one of the warmer months of the year in Nalbari and a relatively wet time of year, so plan for around 34°C daytime highs and 22.7°C at night.
Not quite — September is the 8th coolest month in Nalbari, averaging 28.4°C.
For September in Nalbari, pack light, breathable clothing and sun protection, with typical highs of 34°C and lows of 22.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 85% — quite humid.
Average wind speed in September is 1.4 m/s. The windiest September on record averaged 1.8 m/s (2012).
The wettest September on record was 2014 with 411 mm. On average, September sees 218 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 Nalbari 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.
