September is one of the cooler months of the year in Washim, with average highs near 31.7°C and lows around 19.8°C (mean 25.8°C). It is a relatively wet time of year, averaging 162 mm of rainfall and 83% relative humidity across the period.
September is one of the cooler months of the year in Washim. Across 45 years of records, the warmest September in Washim was 1985 — when the month averaged 28.1°C — while the coldest was 1994 at 22.6°C. Typical September days reach 31.7°C with nights near 19.8°C. The long-term trend is cooling, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.5°C | 25.3°C | 25.9°C | 25.3°C | 25.8°C | -0.7°C |
| Avg High | 32.9°C | 31.4°C | 31.9°C | 30.9°C | 31.1°C | -1.8°C |
| Avg Low | 20.1°C | 19.2°C | 19.8°C | 19.6°C | 20.6°C | +0.5°C |
| Avg Rain | 146 mm | 153 mm | 166 mm | 149 mm | 216 mm | +70 mm |
September temperatures in Washim have fallen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.4°C (1994) to a record high of 36°C (1985).
Rainfall in September is a relatively wet time of year, averaging 162 mm, with a wettest year of 335 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.5°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Washim
September is a good time to visit Washim, with days averaging 31.7°C and nights around 19.8°C (mean 25.8°C, close to Washim's yearly average) and higher rainfall. November and January are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 30.7°C | 20.0°C | 25.4°C | 265 mm | 88% | 2.5 m/s | 3.8 |
| 2024 | 30.8°C | 20.7°C | 25.7°C | 182 mm | 87% | 2.7 m/s | 4.3 |
| 2023 | 31.4°C | 21.3°C | 26.3°C | 170 mm | 85% | 2.6 m/s | 4.1 |
| 2022 | 31.5°C | 19.6°C | 25.5°C | 197 mm | 87% | 2.2 m/s | 4.5 |
| 2021 🌧️ | 30.3°C | 20.9°C | 25.6°C | 335 mm | 88% | 2.4 m/s | 4.1 |
| 2020 | 31.7°C | 21.0°C | 26.3°C | 146 mm | 85% | 1.7 m/s | 4.7 |
| 2019 | 30.8°C | 21.7°C | 26.3°C | 189 mm | 87% | 2.4 m/s | 3.8 |
| 2018 | 31.4°C | 18.7°C | 25.0°C | 48 mm | 79% | 2.1 m/s | 5.1 |
| 2017 | 31.7°C | 20.3°C | 26.0°C | 126 mm | 82% | 1.8 m/s | 4.9 |
| 2016 | 30.2°C | 19.2°C | 24.7°C | 181 mm | 86% | 2.8 m/s | 4.4 |
| 2015 | 32.0°C | 17.2°C | 24.6°C | 158 mm | 81% | 2 m/s | 5.3 |
| 2014 | 31.0°C | 19.4°C | 25.2°C | 131 mm | 83% | 2.8 m/s | 4.8 |
| 2013 | 30.4°C | 20.1°C | 25.2°C | 149 mm | 85% | 2.2 m/s | 5 |
| 2012 | 31.5°C | 20.0°C | 25.7°C | 193 mm | 85% | 2.2 m/s | 4.9 |
| 2011 | 30.4°C | 19.9°C | 25.1°C | 168 mm | 86% | 2.4 m/s | 4.7 |
| 2010 | 29.9°C | 19.6°C | 24.8°C | 151 mm | 86% | 2.1 m/s | 4.9 |
| 2009 | 33.0°C | 20.2°C | 26.6°C | 118 mm | 81% | 2.3 m/s | 5.4 |
| 2008 | 31.2°C | 18.7°C | 25.0°C | 279 mm | 85% | 2.3 m/s | 5 |
| 2007 | 30.8°C | 19.6°C | 25.2°C | 230 mm | 86% | 2 m/s | 4.8 |
| 2006 | 30.9°C | 20.5°C | 25.7°C | 290 mm | 86% | 1.9 m/s | 5.1 |
| 2005 | 31.7°C | 19.6°C | 25.6°C | 231 mm | 86% | 2.4 m/s | 4.7 |
| 2004 | 31.9°C | 20.6°C | 26.2°C | 165 mm | 81% | 1.8 m/s | 5.1 |
| 2003 | 30.8°C | 20.2°C | 25.5°C | 80 mm | 85% | 2.9 m/s | 4.3 |
| 2002 | 32.2°C | 19.4°C | 25.8°C | 90 mm | 81% | 2.6 m/s | 5.2 |
| 2001 | 34.7°C | 19.4°C | 27.1°C | 130 mm | 75% | 1.7 m/s | 5.5 |
| 2000 | 31.9°C | 19.7°C | 25.8°C | 48 mm | 79% | 2.1 m/s | 5.2 |
| 1999 | 30.8°C | 20.6°C | 25.7°C | 210 mm | 85% | 2.6 m/s | 3.6 |
| 1998 | 30.1°C | 21.3°C | 25.7°C | 233 mm | 88% | 2.5 m/s | 4.4 |
| 1997 | 31.5°C | 19.0°C | 25.3°C | 82 mm | 81% | 1.7 m/s | 5 |
| 1996 | 31.4°C | 18.9°C | 25.2°C | 195 mm | 83% | 2 m/s | 5.2 |
| 1995 | 32.6°C | 19.4°C | 26.0°C | 203 mm | 81% | 2.5 m/s | 5.1 |
| 1994 ❄️ | 29.8°C | 15.4°C | 22.6°C | 160 mm | 83% | 2.5 m/s | 5.2 |
| 1993 | 30.7°C | 20.4°C | 25.6°C | 232 mm | 86% | 2.5 m/s | 5.1 |
| 1992 | 31.0°C | 17.6°C | 24.3°C | 130 mm | 81% | 2.4 m/s | 5.4 |
| 1991 | 35.6°C | 19.8°C | 27.7°C | 29 mm | 69% | 2.1 m/s | 5.7 |
| 1990 | 30.8°C | 19.3°C | 25.0°C | 53 mm | 84% | 2.8 m/s | 4.9 |
| 1989 | 32.3°C | 19.7°C | 26.0°C | 81 mm | 81% | 2.1 m/s | 5.4 |
| 1988 | 30.9°C | 20.9°C | 25.9°C | 329 mm | 87% | 1.9 m/s | 4.8 |
| 1987 | 34.4°C | 20.3°C | 27.4°C | 32 mm | 76% | 2.3 m/s | 5.5 |
| 1986 | 34.7°C | 19.7°C | 27.2°C | 54 mm | 75% | 1.8 m/s | 5 |
| 1985 🔥 | 36.0°C | 20.3°C | 28.1°C | 19 mm | 69% | 2.4 m/s | 5.3 |
| 1984 | 35.7°C | 20.2°C | 27.9°C | 61 mm | 68% | 2.6 m/s | 5.3 |
| 1983 | 30.6°C | 20.2°C | 25.4°C | 286 mm | 87% | 2.2 m/s | — |
| 1982 | 31.5°C | 19.2°C | 25.3°C | 119 mm | 81% | 2.3 m/s | — |
| 1981 | 30.3°C | 20.7°C | 25.5°C | 332 mm | 88% | 2.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 31.7°C with lows near 19.8°C (mean 25.8°C), based on 45 years of NASA POWER data.
September averages 162 mm of rainfall in Washim, a relatively wet time of year. The wettest on record was 335 mm in 2021.
The hottest September reached 36°C in 1985. The coldest dipped to 15.4°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.7°C. Daytime highs moved from 32.8°C to 30.9°C and overnight lows from 20.1°C to 20.5°C over the same span.
September is one of the cooler months of the year in Washim and a relatively wet time of year, so plan for around 31.7°C daytime highs and 19.8°C at night.
Not quite — September is the 6th coolest month in Washim, averaging 25.8°C.
For September in Washim, pack light, breathable clothing and sun protection, with typical highs of 31.7°C and lows of 19.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 83% — quite humid.
Average wind speed in September is 2.3 m/s. The windiest September on record averaged 2.9 m/s (2003).
The wettest September on record was 2021 with 335 mm. On average, September sees 162 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 Washim 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.
