September is one of the warmer months of the year in Cachar, with average highs near 30.5°C and lows around 23.7°C (mean 27.1°C). It is a relatively wet time of year, averaging 286 mm of rainfall and 86% relative humidity across the period.
September is one of the warmer months of the year in Cachar. Across 45 years of records, the warmest September in Cachar was 2024 — when the month averaged 28.7°C — while the coldest was 1984 at 25.7°C. Typical September days reach 30.5°C with nights near 23.7°C. The long-term trend is warming, about 0.2°C per decade.
September is a relatively wet time of year in Cachar, averaging 286 mm of rainfall. The wettest September on record was 2020 with 755 mm, while the driest was 1994 at 66 mm.
Relative humidity in Cachar during September averages 86%. The most humid September was 2012 at 90%, and the least humid was 1994 at 80%.
September receives about 4.5 kWh/m²/day of solar energy in Cachar. The sunniest September was 2021 at 5.3 kWh/m²/day, and the cloudiest was 1991 at 3.4.
Average wind speed in Cachar during September is 1 m/s. The windiest September was 1988 at 1.3 m/s, while the calmest were 2016, 2019 and 2023, among others at 0.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.6°C | 27.1°C | 27.1°C | 27.2°C | 27.9°C | +1.3°C |
| Avg High | 30.2°C | 30.7°C | 30.6°C | 30.2°C | 31.4°C | +1.2°C |
| Avg Low | 23.1°C | 23.5°C | 23.6°C | 24.1°C | 24.4°C | +1.3°C |
| Avg Rain | 244 mm | 202 mm | 238 mm | 389 mm | 399 mm | +155 mm |
September temperatures in Cachar have risen by about 1.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 18.5°C (1997) to a record high of 36.1°C (2024).
Rainfall in September is a relatively wet time of year, averaging 286 mm, with a wettest year of 755 mm.
A good time to visit Cachar
September is a good time to visit Cachar, with days averaging 30.5°C and nights around 23.7°C (mean 27.1°C, warmer than Cachar'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 | 31.2°C | 27.8°C | 24.5°C | 35.6°C | 23.2°C | 404 mm | 87% | 1 m/s | 4.8 |
| 2024 🔥 | 32.6°C | 28.7°C | 24.8°C | 36.1°C | 22.3°C | 266 mm | 83% | 1 m/s | 4.8 |
| 2023 | 31.9°C | 28.2°C | 24.6°C | 35.6°C | 22.8°C | 271 mm | 84% | 0.8 m/s | 5.2 |
| 2022 | 30.6°C | 27.2°C | 23.9°C | 33.8°C | 22.3°C | 449 mm | 87% | 1.1 m/s | 4.6 |
| 2021 | 31.6°C | 27.9°C | 24.2°C | 34.5°C | 22.7°C | 247 mm | 85% | 0.9 m/s | 5.3 |
| 2020 🌧️ | 30.2°C | 27.3°C | 24.4°C | 34.8°C | 23.2°C | 755 mm | 89% | 1.1 m/s | 4.2 |
| 2019 | 30.7°C | 27.4°C | 24.1°C | 33.0°C | 21.6°C | 478 mm | 87% | 0.8 m/s | 4.9 |
| 2018 | 30.6°C | 27.4°C | 24.2°C | 33.3°C | 23.2°C | 384 mm | 87% | 1 m/s | 4.7 |
| 2017 | 30.7°C | 27.6°C | 24.5°C | 34.3°C | 23.3°C | 526 mm | 89% | 1.1 m/s | 4.1 |
| 2016 | 30.0°C | 27.2°C | 24.3°C | 33.1°C | 23.7°C | 441 mm | 89% | 0.8 m/s | 4.6 |
| 2015 | 30.4°C | 27.3°C | 24.1°C | 33.8°C | 22.3°C | 384 mm | 88% | 1 m/s | 4.4 |
| 2014 | 30.0°C | 26.9°C | 23.7°C | 33.7°C | 20.9°C | 479 mm | 87% | 0.9 m/s | 4.7 |
| 2013 | 30.2°C | 27.3°C | 24.3°C | 33.0°C | 22.4°C | 275 mm | 88% | 1 m/s | 4.5 |
| 2012 | 29.8°C | 27.2°C | 24.5°C | 35.1°C | 23.5°C | 224 mm | 90% | 1.1 m/s | 4.6 |
| 2011 | 30.5°C | 27.1°C | 23.6°C | 34.3°C | 22.1°C | 284 mm | 86% | 0.9 m/s | 5 |
| 2010 | 29.5°C | 26.6°C | 23.6°C | 33.8°C | 22.5°C | 419 mm | 89% | 0.9 m/s | 4.2 |
| 2009 | 31.1°C | 27.5°C | 23.9°C | 34.4°C | 22.5°C | 179 mm | 85% | 1 m/s | 4.8 |
| 2008 | 30.3°C | 27.0°C | 23.8°C | 32.8°C | 22.0°C | 142 mm | 87% | 0.9 m/s | 5 |
| 2007 | 30.3°C | 26.8°C | 23.4°C | 32.9°C | 19.5°C | 341 mm | 85% | 1.1 m/s | 4.3 |
| 2006 | 31.1°C | 27.3°C | 23.6°C | 34.5°C | 22.2°C | 206 mm | 84% | 0.9 m/s | 4.5 |
| 2005 | 31.7°C | 27.8°C | 23.8°C | 35.3°C | 22.2°C | 265 mm | 84% | 1 m/s | 4.6 |
| 2004 | 29.2°C | 26.3°C | 23.3°C | 32.0°C | 21.4°C | 264 mm | 89% | 1.1 m/s | 3.8 |
| 2003 | 30.9°C | 27.5°C | 24.1°C | 34.1°C | 22.6°C | 279 mm | 86% | 0.8 m/s | 4.6 |
| 2002 | 30.6°C | 26.9°C | 23.2°C | 33.8°C | 20.6°C | 234 mm | 84% | 1 m/s | 5 |
| 2001 | 30.5°C | 27.1°C | 23.8°C | 32.5°C | 22.7°C | 199 mm | 86% | 0.8 m/s | 4.7 |
| 2000 | 30.2°C | 26.8°C | 23.4°C | 34.8°C | 21.0°C | 274 mm | 87% | 1 m/s | 3.9 |
| 1999 | 30.2°C | 26.9°C | 23.6°C | 32.4°C | 22.2°C | 200 mm | 87% | 0.8 m/s | 4.6 |
| 1998 | 31.5°C | 27.8°C | 24.1°C | 34.3°C | 22.0°C | 191 mm | 84% | 0.9 m/s | 5 |
| 1997 | 29.5°C | 26.2°C | 22.9°C | 33.2°C | 18.5°C | 386 mm | 88% | 1.1 m/s | 4.1 |
| 1996 | 31.2°C | 27.4°C | 23.6°C | 34.2°C | 22.7°C | 132 mm | 83% | 1 m/s | 5.1 |
| 1995 | 29.9°C | 26.9°C | 23.8°C | 33.6°C | 22.1°C | 202 mm | 87% | 0.9 m/s | 4.3 |
| 1994 | 31.9°C | 27.7°C | 23.5°C | 34.9°C | 19.0°C | 66 mm | 80% | 0.9 m/s | 5.2 |
| 1993 | 30.4°C | 26.9°C | 23.3°C | 34.1°C | 21.5°C | 182 mm | 84% | 0.9 m/s | 4.2 |
| 1992 | 31.6°C | 27.5°C | 23.4°C | 35.9°C | 21.5°C | 129 mm | 81% | 0.9 m/s | 4.7 |
| 1991 | 29.8°C | 26.6°C | 23.3°C | 32.0°C | 21.8°C | 263 mm | 87% | 1 m/s | 3.4 |
| 1990 | 30.6°C | 27.1°C | 23.6°C | 36.0°C | 21.2°C | 266 mm | 85% | 1 m/s | 4 |
| 1989 | 30.9°C | 27.3°C | 23.7°C | 35.4°C | 22.1°C | 219 mm | 85% | 1 m/s | 4.3 |
| 1988 | 30.3°C | 27.0°C | 23.7°C | 34.4°C | 21.9°C | 216 mm | 88% | 1.3 m/s | 4.2 |
| 1987 | 30.1°C | 26.8°C | 23.6°C | 33.1°C | 20.9°C | 243 mm | 87% | 1 m/s | 4.1 |
| 1986 | 29.8°C | 26.2°C | 22.6°C | 33.5°C | 19.7°C | 203 mm | 84% | 1.1 m/s | 4.2 |
| 1985 | 30.0°C | 26.5°C | 23.0°C | 33.0°C | 21.7°C | 284 mm | 85% | 1 m/s | 4.8 |
| 1984 ❄️ | 29.3°C | 25.7°C | 22.1°C | 32.7°C | 19.4°C | 339 mm | 86% | 1.1 m/s | 4 |
| 1983 | 30.1°C | 26.7°C | 23.3°C | 32.1°C | 22.5°C | 248 mm | 87% | 1 m/s | — |
| 1982 | 30.4°C | 26.7°C | 23.0°C | 34.4°C | 20.9°C | 228 mm | 86% | 1.2 m/s | — |
| 1981 | 30.6°C | 26.9°C | 23.3°C | 33.4°C | 21.9°C | 213 mm | 86% | 1.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30.5°C with lows near 23.7°C (mean 27.1°C), based on 45 years of NASA POWER data.
September averages 286 mm of rainfall in Cachar, a relatively wet time of year. The wettest on record was 755 mm in 2020.
The hottest September reached 36.1°C in 2024. The coldest dipped to 18.5°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.5°C. Daytime highs moved from 30.1°C to 31.6°C and overnight lows from 22.9°C to 24.4°C over the same span.
September is one of the warmer months of the year in Cachar and a relatively wet time of year, so plan for around 30.5°C daytime highs and 23.7°C at night.
Not quite — September is the 8th coolest month in Cachar, averaging 27.1°C.
For September in Cachar, pack light, breathable clothing and sun protection, with typical highs of 30.5°C and lows of 23.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 86% — quite humid.
Average wind speed in September is 1 m/s. The windiest September on record averaged 1.3 m/s (1988).
The wettest September on record was 2020 with 755 mm. On average, September sees 286 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 Cachar 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.
