September is one of the warmer months of the year in Barmer, with average highs near 40.3°C and lows around 22.7°C (mean 31.5°C). It is a relatively wet time of year, averaging 44 mm of rainfall and 53% relative humidity across the period.
September is one of the warmer months of the year in Barmer. Across 45 years of records, the warmest September in Barmer was 2005 — when the month averaged 33.5°C — while the coldest was 2011 at 28°C. Typical September days reach 40.3°C with nights near 22.7°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 | 31.9°C | 31.5°C | 32.0°C | 30.7°C | 31.7°C | -0.2°C |
| Avg High | 41.0°C | 40.4°C | 41.1°C | 39.2°C | 39.9°C | -1.1°C |
| Avg Low | 22.9°C | 22.7°C | 22.9°C | 22.1°C | 23.4°C | +0.5°C |
| Avg Rain | 14 mm | 47 mm | 18 mm | 78 mm | 66 mm | +53 mm |
September temperatures in Barmer have stayed relatively stable across the record.
September has ranged from a record low of 19.7°C (1994) to a record high of 43.2°C (2005).
Rainfall in September is a relatively wet time of year, averaging 44 mm, with a wettest year of 201 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Barmer
September is a good time to visit Barmer, with days averaging 40.3°C and nights around 22.7°C (mean 31.5°C, warmer than Barmer's yearly average) and moderate rainfall. February and November are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 40.0°C | 23.0°C | 31.5°C | 52 mm | 65% | 3.3 m/s | 5.5 |
| 2024 | 40.1°C | 23.0°C | 31.6°C | 89 mm | 66% | 2.9 m/s | 5.6 |
| 2023 | 41.8°C | 23.0°C | 32.4°C | 58 mm | 59% | 2.9 m/s | 5.6 |
| 2022 | 37.3°C | 22.9°C | 30.1°C | 43 mm | 71% | 2.8 m/s | 5.9 |
| 2021 | 39.0°C | 25.6°C | 32.3°C | 125 mm | 64% | 2.4 m/s | 5 |
| 2020 | 40.9°C | 23.1°C | 32.0°C | 30 mm | 67% | 2.4 m/s | 5.7 |
| 2019 | 40.5°C | 23.4°C | 32.0°C | 65 mm | 67% | 2.3 m/s | 5.3 |
| 2018 | 40.4°C | 22.8°C | 31.6°C | 5 mm | 48% | 3.1 m/s | 5.9 |
| 2017 | 39.3°C | 22.3°C | 30.8°C | 12 mm | 59% | 2.7 m/s | 5.8 |
| 2016 | 41.6°C | 22.5°C | 32.0°C | 1 mm | 55% | 2.9 m/s | 6.4 |
| 2015 | 40.7°C | 20.5°C | 30.6°C | 56 mm | 52% | 2.6 m/s | 6.1 |
| 2014 | 38.9°C | 22.5°C | 30.7°C | 71 mm | 58% | 3.1 m/s | 5.9 |
| 2013 | 42.3°C | 23.6°C | 33.0°C | 86 mm | 53% | 2.8 m/s | 5.7 |
| 2012 🌧️ | 37.1°C | 21.8°C | 29.4°C | 201 mm | 68% | 2.2 m/s | 5.3 |
| 2011 ❄️ | 34.4°C | 21.6°C | 28.0°C | 127 mm | 76% | 3.2 m/s | 5.4 |
| 2010 | 37.1°C | 20.3°C | 28.7°C | 159 mm | 64% | 2.1 m/s | 5.6 |
| 2009 | 42.0°C | 22.9°C | 32.5°C | 1 mm | 49% | 3.1 m/s | 6.4 |
| 2008 | 40.7°C | 22.2°C | 31.4°C | 22 mm | 52% | 2.9 m/s | 6 |
| 2007 | 41.3°C | 23.8°C | 32.6°C | 31 mm | 51% | 2.7 m/s | 5.9 |
| 2006 | 38.1°C | 21.8°C | 29.9°C | 44 mm | 71% | 2.2 m/s | 5.8 |
| 2005 🔥 | 43.2°C | 23.8°C | 33.5°C | 41 mm | 49% | 2.8 m/s | 5.8 |
| 2004 | 41.3°C | 24.4°C | 32.8°C | 23 mm | 47% | 2.9 m/s | 6 |
| 2003 | 39.9°C | 22.7°C | 31.3°C | 2 mm | 57% | 3 m/s | 5.9 |
| 2002 | 40.5°C | 21.5°C | 31.0°C | 16 mm | 40% | 3.3 m/s | 6.1 |
| 2001 | 41.9°C | 23.1°C | 32.5°C | 4 mm | 38% | 2.5 m/s | 6.2 |
| 2000 | 42.1°C | 22.6°C | 32.3°C | 1 mm | 40% | 3.3 m/s | 6.1 |
| 1999 | 42.9°C | 24.0°C | 33.4°C | 2 mm | 40% | 3.3 m/s | 6.2 |
| 1998 | 42.1°C | 24.0°C | 33.1°C | 115 mm | 52% | 3.2 m/s | 5.8 |
| 1997 | 39.3°C | 23.6°C | 31.4°C | 29 mm | 51% | 3 m/s | 5.8 |
| 1996 | 41.5°C | 23.3°C | 32.4°C | 6 mm | 43% | 2.8 m/s | 6.1 |
| 1995 | 41.2°C | 23.5°C | 32.4°C | 3 mm | 41% | 2.8 m/s | 6.2 |
| 1994 | 36.8°C | 19.7°C | 28.3°C | 98 mm | 62% | 2.7 m/s | 5.8 |
| 1993 | 41.4°C | 22.9°C | 32.2°C | 42 mm | 47% | 2.8 m/s | 6.2 |
| 1992 | 37.9°C | 20.9°C | 29.4°C | 94 mm | 54% | 2.6 m/s | 5.6 |
| 1991 | 40.1°C | 21.8°C | 30.9°C | 2 mm | 43% | 3.7 m/s | 6 |
| 1990 | 40.3°C | 23.3°C | 31.8°C | 80 mm | 56% | 3.1 m/s | 5.8 |
| 1989 | 40.0°C | 22.2°C | 31.1°C | 2 mm | 46% | 3.1 m/s | 6.3 |
| 1988 | 41.0°C | 24.7°C | 32.8°C | 28 mm | 53% | 3.3 m/s | 6.1 |
| 1987 | 42.2°C | 23.2°C | 32.7°C | 0 mm | 39% | 3.6 m/s | 5.8 |
| 1986 | 41.6°C | 23.2°C | 32.4°C | 0 mm | 38% | 2.6 m/s | 6.2 |
| 1985 | 41.0°C | 23.0°C | 32.0°C | 2 mm | 41% | 3.3 m/s | 6.2 |
| 1984 | 40.7°C | 21.7°C | 31.2°C | 45 mm | 50% | 2.9 m/s | 5.9 |
| 1983 | 41.3°C | 23.5°C | 32.4°C | 13 mm | 49% | 2.5 m/s | — |
| 1982 | 40.2°C | 20.4°C | 30.3°C | 0 mm | 45% | 3.2 m/s | — |
| 1981 | 41.2°C | 23.9°C | 32.6°C | 35 mm | 54% | 2.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 40.3°C with lows near 22.7°C (mean 31.5°C), based on 45 years of NASA POWER data.
September averages 44 mm of rainfall in Barmer, a relatively wet time of year. The wettest on record was 201 mm in 2012.
The hottest September reached 43.2°C in 2005. The coldest dipped to 19.7°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.1°C. Daytime highs moved from 40.9°C to 39.6°C and overnight lows from 22.5°C to 23.5°C over the same span.
September is one of the warmer months of the year in Barmer and a relatively wet time of year, so plan for around 40.3°C daytime highs and 22.7°C at night.
Not quite — September is the 8th coolest month in Barmer, averaging 31.5°C.
For September in Barmer, pack light, breathable clothing and sun protection, with typical highs of 40.3°C and lows of 22.7°C.
Relative humidity in September averages 53% — relatively dry.
Average wind speed in September is 2.9 m/s. The windiest September on record averaged 3.7 m/s (1991).
The wettest September on record was 2012 with 201 mm. On average, September sees 44 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 Barmer 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.
