September is one of the warmer months of the year in Deoria, with average highs near 34.1°C and lows around 21.9°C (mean 28°C). It is a relatively wet time of year, averaging 174 mm of rainfall and 83% relative humidity across the period.
September is one of the warmer months of the year in Deoria. Across 45 years of records, the warmest September in Deoria was 1983 — when the month averaged 31.3°C — while the coldest was 1984 at 24.7°C. Typical September days reach 34.1°C with nights near 21.9°C. The long-term September temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.3°C | 27.5°C | 28.1°C | 27.7°C | 28.6°C | +0.3°C |
| Avg High | 35.1°C | 33.6°C | 34.0°C | 33.9°C | 33.8°C | -1.3°C |
| Avg Low | 21.5°C | 21.4°C | 22.1°C | 21.7°C | 23.5°C | +2°C |
| Avg Rain | 161 mm | 152 mm | 159 mm | 210 mm | 197 mm | +36 mm |
September temperatures in Deoria have risen by about 0.8°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 16.5°C (1994) to a record high of 37.9°C (1983).
Rainfall in September is a relatively wet time of year, averaging 174 mm, with a wettest year of 366 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A good time to visit Deoria
September is a good time to visit Deoria, with days averaging 34.1°C and nights around 21.9°C (mean 28°C, warmer than Deoria's yearly average) and higher rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 34.1°C | 24.7°C | 29.4°C | 160 mm | 86% | 1.6 m/s | 4.5 |
| 2024 | 35.3°C | 23.9°C | 29.6°C | 263 mm | 85% | 1.9 m/s | 4.5 |
| 2023 | 33.9°C | 24.1°C | 29.0°C | 93 mm | 86% | 2 m/s | 4.3 |
| 2022 | 33.4°C | 22.7°C | 28.1°C | 236 mm | 85% | 1.8 m/s | 4 |
| 2021 | 32.5°C | 24.4°C | 28.5°C | 181 mm | 89% | 2 m/s | 4.7 |
| 2020 | 33.4°C | 20.9°C | 27.1°C | 250 mm | 86% | 1.5 m/s | 4.1 |
| 2019 🌧️ | 34.2°C | 21.2°C | 27.7°C | 366 mm | 87% | 2.1 m/s | 3.6 |
| 2018 | 32.8°C | 21.2°C | 27.0°C | 114 mm | 84% | 2.1 m/s | 4.8 |
| 2017 | 34.2°C | 23.2°C | 28.7°C | 102 mm | 84% | 1.6 m/s | 4.9 |
| 2016 | 33.9°C | 23.5°C | 28.7°C | 266 mm | 85% | 1.4 m/s | 4.2 |
| 2015 | 35.8°C | 19.6°C | 27.7°C | 46 mm | 74% | 1.7 m/s | 5.2 |
| 2014 | 34.5°C | 20.4°C | 27.4°C | 203 mm | 83% | 1.8 m/s | 4.6 |
| 2013 | 33.2°C | 23.0°C | 28.1°C | 194 mm | 82% | 1.5 m/s | 4.9 |
| 2012 | 33.6°C | 21.2°C | 27.4°C | 364 mm | 84% | 1.8 m/s | 4.6 |
| 2011 | 33.3°C | 22.3°C | 27.8°C | 192 mm | 86% | 2.1 m/s | 4.7 |
| 2010 | 33.1°C | 20.9°C | 27.0°C | 254 mm | 87% | 2.1 m/s | 4.3 |
| 2009 | 33.2°C | 22.9°C | 28.1°C | 114 mm | 84% | 1.8 m/s | 4.9 |
| 2008 | 32.7°C | 21.4°C | 27.0°C | 194 mm | 87% | 1.7 m/s | 5.2 |
| 2007 | 32.9°C | 22.1°C | 27.5°C | 299 mm | 87% | 2.2 m/s | 4.4 |
| 2006 | 33.9°C | 22.1°C | 28.0°C | 147 mm | 83% | 1.9 m/s | 5 |
| 2005 | 33.0°C | 22.8°C | 27.9°C | 85 mm | 86% | 2 m/s | 4.8 |
| 2004 | 36.2°C | 22.3°C | 29.2°C | 58 mm | 76% | 1.7 m/s | 5 |
| 2003 | 35.7°C | 23.0°C | 29.4°C | 124 mm | 79% | 2.2 m/s | 4.2 |
| 2002 | 37.0°C | 22.6°C | 29.8°C | 126 mm | 71% | 2.4 m/s | 4.5 |
| 2001 | 32.9°C | 21.3°C | 27.1°C | 225 mm | 83% | 1.5 m/s | 4.5 |
| 2000 | 32.4°C | 20.5°C | 26.5°C | 219 mm | 86% | 2.2 m/s | 4.1 |
| 1999 | 34.2°C | 23.2°C | 28.7°C | 62 mm | 81% | 2.3 m/s | 4.8 |
| 1998 | 33.2°C | 23.4°C | 28.3°C | 122 mm | 87% | 2.1 m/s | 4.9 |
| 1997 | 33.3°C | 20.5°C | 26.9°C | 182 mm | 82% | 1.7 m/s | 4.6 |
| 1996 | 32.9°C | 23.3°C | 28.1°C | 115 mm | 84% | 1.4 m/s | 5.2 |
| 1995 | 33.4°C | 21.9°C | 27.7°C | 162 mm | 83% | 2.1 m/s | 5.2 |
| 1994 | 33.6°C | 16.5°C | 25.0°C | 211 mm | 81% | 2.2 m/s | 4.7 |
| 1993 | 33.4°C | 22.3°C | 27.9°C | 210 mm | 87% | 2.4 m/s | 4.5 |
| 1992 | 35.4°C | 20.8°C | 28.1°C | 88 mm | 76% | 1.9 m/s | 5.2 |
| 1991 | 33.1°C | 20.4°C | 26.7°C | 236 mm | 83% | 1.5 m/s | 4.6 |
| 1990 | 33.6°C | 22.1°C | 27.9°C | 133 mm | 86% | 2.2 m/s | 4.4 |
| 1989 | 37.0°C | 23.5°C | 30.2°C | 107 mm | 76% | 2.1 m/s | 4.7 |
| 1988 | 33.9°C | 22.4°C | 28.2°C | 98 mm | 84% | 1.8 m/s | 5.2 |
| 1987 | 33.5°C | 20.3°C | 26.9°C | 333 mm | 87% | 1.9 m/s | 4.4 |
| 1986 | 37.1°C | 21.0°C | 29.1°C | 55 mm | 71% | 2.5 m/s | 5.1 |
| 1985 | 34.1°C | 22.3°C | 28.2°C | 242 mm | 87% | 2 m/s | 4.7 |
| 1984 ❄️ | 31.6°C | 17.9°C | 24.7°C | 224 mm | 85% | 2.1 m/s | 5.4 |
| 1983 🔥 | 37.9°C | 24.7°C | 31.3°C | 45 mm | 68% | 2.5 m/s | — |
| 1982 | 36.8°C | 19.0°C | 27.9°C | 153 mm | 80% | 2.1 m/s | — |
| 1981 | 33.7°C | 22.8°C | 28.2°C | 193 mm | 86% | 2.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 34.1°C with lows near 21.9°C (mean 28°C), based on 45 years of NASA POWER data.
September averages 174 mm of rainfall in Deoria, a relatively wet time of year. The wettest on record was 366 mm in 2019.
The hottest September reached 37.9°C in 1983. The coldest dipped to 16.5°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.8°C. Daytime highs moved from 34.8°C to 33.8°C and overnight lows from 21.3°C to 24°C over the same span.
September is one of the warmer months of the year in Deoria and a relatively wet time of year, so plan for around 34.1°C daytime highs and 21.9°C at night.
Not quite — September is the 7th coolest month in Deoria, averaging 28°C.
For September in Deoria, pack light, breathable clothing and sun protection, with typical highs of 34.1°C and lows of 21.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 83% — quite humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.5 m/s (1983).
The wettest September on record was 2019 with 366 mm. On average, September sees 174 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 Deoria 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.
