September is close to Chhotaudepur's year-round average, with average highs near 31.4°C and lows around 23.4°C (mean 27.4°C). It is a relatively wet time of year, averaging 149 mm of rainfall and 82% relative humidity across the period.
September is close to Chhotaudepur's year-round average. Across 45 years of records, the warmest September in Chhotaudepur was 1987 — when the month averaged 30.1°C — while the coldest was 1994 at 25.5°C. Typical September days reach 31.4°C with nights near 23.4°C. The long-term trend is cooling, about 0.2°C per decade.
September is a relatively wet time of year in Chhotaudepur, averaging 149 mm of rainfall. The wettest September on record was 2024 with 404 mm, while the driest was 1987 at 4 mm.
Relative humidity in Chhotaudepur during September averages 82%. The most humid September was 2019 at 92%, and the least humid was 1986 at 59%.
September receives about 4.8 kWh/m²/day of solar energy in Chhotaudepur. The sunniest September was 1986 at 6 kWh/m²/day, and the cloudiest was 2019 at 3.5.
Average wind speed in Chhotaudepur during September is 2.1 m/s. The windiest Septembers were 1999 and 2021 at 2.6 m/s, while the calmest was 2020 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.0°C | 27.2°C | 27.6°C | 26.9°C | 27.2°C | -0.8°C |
| Avg High | 32.8°C | 31.4°C | 31.8°C | 30.5°C | 30.2°C | -2.6°C |
| Avg Low | 23.2°C | 23.1°C | 23.5°C | 23.4°C | 24.1°C | +0.9°C |
| Avg Rain | 68 mm | 145 mm | 121 mm | 184 mm | 261 mm | +192 mm |
September temperatures in Chhotaudepur have stayed relatively stable across the record.
September has ranged from a record low of 18.4°C (1982) to a record high of 40.8°C (1986).
Rainfall in September is a relatively wet time of year, averaging 149 mm, with a wettest year of 404 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.6°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Chhotaudepur
September is a good time to visit Chhotaudepur, with days averaging 31.4°C and nights around 23.4°C (mean 27.4°C, close to Chhotaudepur's yearly average) and higher rainfall. January and December 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 | 29.8°C | 26.6°C | 23.3°C | 32.4°C | 21.0°C | 235 mm | 88% | 2.2 m/s | 4 |
| 2024 🌧️ | 29.6°C | 26.9°C | 24.2°C | 31.1°C | 21.6°C | 404 mm | 90% | 2.2 m/s | 3.9 |
| 2023 | 30.8°C | 27.5°C | 24.1°C | 33.6°C | 21.9°C | 279 mm | 85% | 2.3 m/s | 4.1 |
| 2022 | 30.5°C | 27.2°C | 24.0°C | 32.7°C | 22.0°C | 110 mm | 87% | 2 m/s | 4.4 |
| 2021 | 30.2°C | 27.4°C | 24.6°C | 33.3°C | 22.9°C | 401 mm | 89% | 2.6 m/s | 3.7 |
| 2020 | 30.5°C | 27.4°C | 24.2°C | 32.3°C | 21.4°C | 137 mm | 87% | 1.4 m/s | 4.5 |
| 2019 | 29.4°C | 27.0°C | 24.7°C | 31.6°C | 23.3°C | 308 mm | 92% | 2.1 m/s | 3.5 |
| 2018 | 30.8°C | 26.5°C | 22.1°C | 34.7°C | 19.9°C | 51 mm | 80% | 2.1 m/s | 4.7 |
| 2017 | 30.9°C | 27.1°C | 23.4°C | 32.6°C | 21.3°C | 60 mm | 84% | 1.5 m/s | 4.5 |
| 2016 | 30.9°C | 26.9°C | 22.9°C | 32.5°C | 21.0°C | 115 mm | 84% | 2 m/s | 4.7 |
| 2015 | 32.7°C | 27.9°C | 23.0°C | 37.2°C | 19.9°C | 179 mm | 77% | 2 m/s | 5 |
| 2014 | 30.0°C | 26.6°C | 23.2°C | 32.7°C | 21.5°C | 213 mm | 86% | 1.9 m/s | 4.4 |
| 2013 | 30.7°C | 27.2°C | 23.7°C | 34.2°C | 22.5°C | 215 mm | 85% | 2.2 m/s | 4.7 |
| 2012 | 29.9°C | 26.7°C | 23.6°C | 33.0°C | 21.3°C | 325 mm | 87% | 2.3 m/s | 4.3 |
| 2011 | 29.8°C | 26.5°C | 23.3°C | 31.3°C | 21.2°C | 150 mm | 88% | 2.3 m/s | 4.5 |
| 2010 | 30.3°C | 27.0°C | 23.6°C | 32.6°C | 21.6°C | 229 mm | 86% | 2.1 m/s | 4.6 |
| 2009 | 31.9°C | 27.6°C | 23.2°C | 35.4°C | 21.1°C | 65 mm | 83% | 1.8 m/s | 5.5 |
| 2008 | 30.5°C | 26.9°C | 23.4°C | 32.6°C | 19.7°C | 171 mm | 86% | 1.7 m/s | 4.7 |
| 2007 | 30.7°C | 27.2°C | 23.8°C | 32.6°C | 20.9°C | 157 mm | 86% | 1.6 m/s | 4.8 |
| 2006 | 30.6°C | 27.1°C | 23.7°C | 32.5°C | 22.7°C | 164 mm | 87% | 1.7 m/s | 4.7 |
| 2005 | 30.5°C | 27.3°C | 24.1°C | 33.8°C | 20.6°C | 356 mm | 87% | 2 m/s | 4.5 |
| 2004 | 31.3°C | 27.4°C | 23.5°C | 33.7°C | 22.2°C | 65 mm | 83% | 1.5 m/s | 5.5 |
| 2003 | 29.7°C | 26.6°C | 23.4°C | 31.4°C | 21.7°C | 137 mm | 88% | 2.3 m/s | 3.9 |
| 2002 | 32.2°C | 27.3°C | 22.4°C | 37.6°C | 20.7°C | 83 mm | 79% | 2.2 m/s | 5 |
| 2001 | 35.2°C | 29.4°C | 23.6°C | 40.5°C | 21.4°C | 7 mm | 69% | 1.9 m/s | 5.5 |
| 2000 | 35.3°C | 29.4°C | 23.4°C | 40.3°C | 21.8°C | 9 mm | 67% | 2.2 m/s | 5 |
| 1999 | 35.1°C | 29.6°C | 24.2°C | 37.5°C | 23.3°C | 99 mm | 70% | 2.6 m/s | 4.2 |
| 1998 | 31.0°C | 27.6°C | 24.2°C | 33.5°C | 23.3°C | 209 mm | 87% | 2.2 m/s | 4.4 |
| 1997 | 30.4°C | 26.9°C | 23.4°C | 34.0°C | 20.7°C | 80 mm | 85% | 2.1 m/s | 5.5 |
| 1996 | 30.4°C | 26.6°C | 22.9°C | 32.6°C | 20.3°C | 92 mm | 84% | 1.8 m/s | 5 |
| 1995 | 32.1°C | 27.6°C | 23.1°C | 34.7°C | 21.1°C | 111 mm | 79% | 1.8 m/s | 5.5 |
| 1994 ❄️ | 29.2°C | 25.5°C | 21.9°C | 31.5°C | 18.7°C | 328 mm | 85% | 2.4 m/s | 4.6 |
| 1993 | 32.9°C | 28.2°C | 23.6°C | 35.5°C | 22.4°C | 148 mm | 76% | 2.4 m/s | 4.6 |
| 1992 | 30.9°C | 26.4°C | 21.9°C | 35.0°C | 19.2°C | 173 mm | 79% | 2.2 m/s | 5.1 |
| 1991 | 32.1°C | 27.1°C | 22.1°C | 35.9°C | 20.5°C | 14 mm | 76% | 2.1 m/s | 5.3 |
| 1990 | 29.5°C | 26.5°C | 23.5°C | 31.1°C | 21.4°C | 195 mm | 88% | 2.3 m/s | 4.2 |
| 1989 | 32.0°C | 27.6°C | 23.2°C | 35.7°C | 21.9°C | 45 mm | 79% | 1.8 m/s | 5.4 |
| 1988 | 31.4°C | 27.8°C | 24.3°C | 33.3°C | 22.6°C | 129 mm | 85% | 1.8 m/s | 5.4 |
| 1987 🔥 | 36.3°C | 30.1°C | 23.8°C | 40.2°C | 22.8°C | 4 mm | 65% | 2.4 m/s | 5.9 |
| 1986 | 36.8°C | 29.9°C | 23.0°C | 40.8°C | 21.1°C | 17 mm | 59% | 2.1 m/s | 6 |
| 1985 | 35.1°C | 29.1°C | 23.2°C | 40.3°C | 22.1°C | 22 mm | 67% | 2.5 m/s | 5.8 |
| 1984 | 30.8°C | 26.4°C | 22.1°C | 33.6°C | 19.2°C | 60 mm | 79% | 2.4 m/s | 5.5 |
| 1983 | 30.7°C | 27.2°C | 23.7°C | 32.8°C | 22.2°C | 133 mm | 85% | 1.9 m/s | — |
| 1982 | 31.1°C | 26.5°C | 21.9°C | 33.5°C | 18.4°C | 38 mm | 80% | 2 m/s | — |
| 1981 | 30.8°C | 27.4°C | 24.0°C | 33.0°C | 22.9°C | 169 mm | 84% | 1.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 31.4°C with lows near 23.4°C (mean 27.4°C), based on 45 years of NASA POWER data.
September averages 149 mm of rainfall in Chhotaudepur, a relatively wet time of year. The wettest on record was 404 mm in 2024.
The hottest September reached 40.8°C in 1986. The coldest dipped to 18.4°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 23°C to 24°C while daytime highs eased from 31.7°C to 30.2°C, narrowing the gap between day and night.
September is close to Chhotaudepur's year-round average and a relatively wet time of year, so plan for around 31.4°C daytime highs and 23.4°C at night.
Not quite — September is the 7th coolest month in Chhotaudepur, averaging 27.4°C.
For September in Chhotaudepur, pack light, breathable clothing and sun protection, with typical highs of 31.4°C and lows of 23.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 82% — quite humid.
Average wind speed in September is 2.1 m/s. The windiest September on record averaged 2.6 m/s (1999).
The wettest September on record was 2024 with 404 mm. On average, September sees 149 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 Chhotaudepur 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.
