September is one of the warmer months of the year in Sonitpur, with average highs near 34.2°C and lows around 22.4°C (mean 28.3°C). It is a relatively wet time of year, averaging 192 mm of rainfall and 83% relative humidity across the period.
September is one of the warmer months of the year in Sonitpur. Across 45 years of records, the warmest September in Sonitpur was 2023 — when the month averaged 30.7°C — while the coldest was 2007 at 26.4°C. Typical September days reach 34.2°C with nights near 22.4°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 | 27.8°C | 27.9°C | 28.0°C | 28.4°C | 29.8°C | +2°C |
| Avg High | 33.8°C | 34.2°C | 33.7°C | 33.8°C | 36.1°C | +2.3°C |
| Avg Low | 21.8°C | 21.7°C | 22.3°C | 23.0°C | 23.7°C | +1.9°C |
| Avg Rain | 233 mm | 187 mm | 166 mm | 221 mm | 135 mm | -98 mm |
September temperatures in Sonitpur have risen by about 1.8°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 19.1°C (1997) to a record high of 37.8°C (2024).
Rainfall in September is a relatively wet time of year, averaging 192 mm, with a wettest year of 401 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 Sonitpur
September is a good time to visit Sonitpur, with days averaging 34.2°C and nights around 22.4°C (mean 28.3°C, warmer than Sonitpur'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 | 35.6°C | 23.8°C | 29.7°C | 157 mm | 82% | 1.3 m/s | 4.4 |
| 2024 | 37.8°C | 22.9°C | 30.3°C | 106 mm | 78% | 1.1 m/s | 4.7 |
| 2023 🔥 | 37.3°C | 24.2°C | 30.7°C | 68 mm | 75% | 1.2 m/s | 5.1 |
| 2022 | 35.6°C | 23.6°C | 29.6°C | 91 mm | 80% | 1.2 m/s | 4.4 |
| 2021 | 34.7°C | 23.9°C | 29.3°C | 172 mm | 81% | 1.1 m/s | 5 |
| 2020 | 35.4°C | 23.5°C | 29.4°C | 218 mm | 86% | 1.2 m/s | 3.9 |
| 2019 | 35.4°C | 22.2°C | 28.8°C | 247 mm | 83% | 1 m/s | 4 |
| 2018 | 34.0°C | 23.4°C | 28.7°C | 201 mm | 84% | 1.1 m/s | 4.2 |
| 2017 | 32.8°C | 24.6°C | 28.7°C | 199 mm | 86% | 1.2 m/s | 4 |
| 2016 | 33.3°C | 22.8°C | 28.1°C | 149 mm | 85% | 1.2 m/s | 4.3 |
| 2015 | 33.1°C | 23.9°C | 28.5°C | 171 mm | 85% | 1 m/s | 4.5 |
| 2014 🌧️ | 33.8°C | 22.5°C | 28.2°C | 401 mm | 85% | 0.9 m/s | 4.2 |
| 2013 | 33.9°C | 23.1°C | 28.5°C | 162 mm | 85% | 1.1 m/s | 4.6 |
| 2012 | 35.0°C | 23.2°C | 29.1°C | 212 mm | 87% | 1.4 m/s | 3.9 |
| 2011 | 33.9°C | 23.3°C | 28.6°C | 205 mm | 83% | 1.1 m/s | 4.6 |
| 2010 | 32.8°C | 21.4°C | 27.1°C | 263 mm | 84% | 1.1 m/s | 4.2 |
| 2009 | 33.9°C | 22.7°C | 28.3°C | 164 mm | 82% | 1.3 m/s | 4.7 |
| 2008 | 32.6°C | 23.3°C | 27.9°C | 116 mm | 83% | 1.1 m/s | 4.7 |
| 2007 ❄️ | 33.2°C | 19.6°C | 26.4°C | 268 mm | 81% | 1.1 m/s | 4.2 |
| 2006 | 37.0°C | 22.4°C | 29.7°C | 105 mm | 76% | 1.4 m/s | 4.6 |
| 2005 | 34.3°C | 22.9°C | 28.6°C | 111 mm | 79% | 1.1 m/s | 4.8 |
| 2004 | 32.2°C | 22.0°C | 27.1°C | 164 mm | 84% | 1.2 m/s | 4 |
| 2003 | 32.8°C | 23.6°C | 28.2°C | 255 mm | 83% | 1.1 m/s | 4.5 |
| 2002 | 34.3°C | 21.9°C | 28.1°C | 122 mm | 80% | 1.3 m/s | 4.6 |
| 2001 | 32.8°C | 23.5°C | 28.1°C | 175 mm | 82% | 1 m/s | 4.3 |
| 2000 | 34.2°C | 21.5°C | 27.8°C | 178 mm | 85% | 1 m/s | 4.2 |
| 1999 | 33.3°C | 22.6°C | 27.9°C | 275 mm | 82% | 0.9 m/s | 4.5 |
| 1998 | 33.8°C | 22.7°C | 28.3°C | 142 mm | 80% | 0.9 m/s | 4.7 |
| 1997 | 33.9°C | 19.1°C | 26.5°C | 178 mm | 85% | 1.2 m/s | 4 |
| 1996 | 34.9°C | 22.4°C | 28.6°C | 140 mm | 80% | 1.2 m/s | 4.5 |
| 1995 | 35.2°C | 20.8°C | 28.0°C | 256 mm | 84% | 1.2 m/s | 4.4 |
| 1994 | 34.3°C | 21.0°C | 27.6°C | 97 mm | 80% | 1 m/s | 5 |
| 1993 | 34.2°C | 22.6°C | 28.4°C | 206 mm | 83% | 1 m/s | 4 |
| 1992 | 34.9°C | 21.4°C | 28.1°C | 117 mm | 78% | 1.1 m/s | 4.1 |
| 1991 | 32.3°C | 23.0°C | 27.6°C | 250 mm | 84% | 0.8 m/s | 3.5 |
| 1990 | 35.5°C | 21.3°C | 28.4°C | 207 mm | 84% | 1.2 m/s | 3.7 |
| 1989 | 34.6°C | 23.1°C | 28.9°C | 263 mm | 83% | 1.1 m/s | 4.2 |
| 1988 | 32.8°C | 22.1°C | 27.5°C | 231 mm | 85% | 1.2 m/s | 3.8 |
| 1987 | 32.8°C | 20.3°C | 26.6°C | 316 mm | 85% | 1 m/s | 4 |
| 1986 | 33.4°C | 20.6°C | 27.0°C | 161 mm | 82% | 1.3 m/s | 3.8 |
| 1985 | 34.5°C | 22.6°C | 28.6°C | 299 mm | 81% | 1.1 m/s | 4.8 |
| 1984 | 33.3°C | 20.8°C | 27.0°C | 209 mm | 84% | 1.1 m/s | 3.7 |
| 1983 | 34.6°C | 23.0°C | 28.8°C | 271 mm | 83% | 1.1 m/s | — |
| 1982 | 35.1°C | 21.8°C | 28.4°C | 124 mm | 83% | 1.3 m/s | — |
| 1981 | 33.3°C | 22.2°C | 27.7°C | 224 mm | 84% | 1.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 34.2°C with lows near 22.4°C (mean 28.3°C), based on 45 years of NASA POWER data.
September averages 192 mm of rainfall in Sonitpur, a relatively wet time of year. The wettest on record was 401 mm in 2014.
The hottest September reached 37.8°C in 2024. The coldest dipped to 19.1°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.8°C. Daytime highs moved from 34.2°C to 36.2°C and overnight lows from 22.1°C to 23.7°C over the same span.
September is one of the warmer months of the year in Sonitpur and a relatively wet time of year, so plan for around 34.2°C daytime highs and 22.4°C at night.
Not quite — September is the 8th coolest month in Sonitpur, averaging 28.3°C.
For September in Sonitpur, pack light, breathable clothing and sun protection, with typical highs of 34.2°C and lows of 22.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 83% — quite humid.
Average wind speed in September is 1.1 m/s. The windiest September on record averaged 1.4 m/s (2006).
The wettest September on record was 2014 with 401 mm. On average, September sees 192 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 Sonitpur 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.
