September is one of the cooler months of the year in Washim, with average highs near 29.7°C and lows around 21.8°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 1984 — when the month averaged 27.4°C — while the coldest was 1994 at 24.1°C. Typical September days reach 29.7°C with nights near 21.8°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Washim, averaging 162 mm of rainfall. The wettest September on record was 2021 with 335 mm, while the driest was 1985 at 19 mm.
Relative humidity in Washim during September averages 83%. The most humid September was 2025 at 88%, and the least humid was 1984 at 68%.
September receives about 4.9 kWh/m²/day of solar energy in Washim. The sunniest September was 1991 at 5.7 kWh/m²/day, and the cloudiest was 1999 at 3.6.
Average wind speed in Washim during September is 2.3 m/s. The windiest September was 2003 at 2.9 m/s, while the calmest were 1997, 2001 and 2020 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.1°C | 25.4°C | 25.8°C | 25.5°C | 25.8°C | -0.3°C |
| Avg High | 30.5°C | 29.5°C | 29.8°C | 29.3°C | 29.1°C | -1.4°C |
| Avg Low | 21.8°C | 21.3°C | 21.8°C | 21.7°C | 22.4°C | +0.6°C |
| Avg Rain | 146 mm | 153 mm | 166 mm | 149 mm | 216 mm | +70 mm |
September temperatures in Washim have fallen by about 0.4°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 0.3°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 29.7°C and nights around 21.8°C (mean 25.8°C, close to Washim'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 | 28.8°C | 25.4°C | 22.1°C | 30.7°C | 20.0°C | 265 mm | 88% | 2.5 m/s | 3.8 |
| 2024 | 29.2°C | 25.7°C | 22.3°C | 30.8°C | 20.7°C | 182 mm | 87% | 2.7 m/s | 4.3 |
| 2023 | 29.5°C | 26.0°C | 22.5°C | 31.4°C | 21.3°C | 170 mm | 85% | 2.6 m/s | 4.1 |
| 2022 | 28.9°C | 25.5°C | 22.1°C | 31.5°C | 19.6°C | 197 mm | 87% | 2.2 m/s | 4.5 |
| 2021 🌧️ | 28.7°C | 25.7°C | 22.6°C | 30.3°C | 20.9°C | 335 mm | 88% | 2.4 m/s | 4.1 |
| 2020 | 29.6°C | 26.2°C | 22.9°C | 31.7°C | 21.0°C | 146 mm | 85% | 1.7 m/s | 4.7 |
| 2019 | 28.9°C | 25.8°C | 22.6°C | 30.8°C | 21.7°C | 189 mm | 87% | 2.4 m/s | 3.8 |
| 2018 | 29.8°C | 25.1°C | 20.5°C | 31.4°C | 18.7°C | 48 mm | 79% | 2.1 m/s | 5.1 |
| 2017 | 30.2°C | 26.1°C | 22.1°C | 31.7°C | 20.3°C | 126 mm | 82% | 1.8 m/s | 4.9 |
| 2016 | 28.9°C | 25.4°C | 21.8°C | 30.2°C | 19.2°C | 181 mm | 86% | 2.8 m/s | 4.4 |
| 2015 | 30.1°C | 25.8°C | 21.5°C | 32.0°C | 17.2°C | 158 mm | 81% | 2 m/s | 5.3 |
| 2014 | 29.4°C | 25.3°C | 21.3°C | 31.0°C | 19.4°C | 131 mm | 83% | 2.8 m/s | 4.8 |
| 2013 | 29.1°C | 25.5°C | 21.9°C | 30.4°C | 20.1°C | 149 mm | 85% | 2.2 m/s | 5 |
| 2012 | 29.4°C | 25.7°C | 21.9°C | 31.5°C | 20.0°C | 193 mm | 85% | 2.2 m/s | 4.9 |
| 2011 | 28.8°C | 25.3°C | 21.7°C | 30.4°C | 19.9°C | 168 mm | 86% | 2.4 m/s | 4.7 |
| 2010 | 28.6°C | 25.2°C | 21.8°C | 29.9°C | 19.6°C | 151 mm | 86% | 2.1 m/s | 4.9 |
| 2009 | 30.8°C | 26.4°C | 22.1°C | 33.0°C | 20.2°C | 118 mm | 81% | 2.3 m/s | 5.4 |
| 2008 | 29.3°C | 25.4°C | 21.5°C | 31.2°C | 18.7°C | 279 mm | 85% | 2.3 m/s | 5 |
| 2007 | 29.1°C | 25.7°C | 22.3°C | 30.8°C | 19.6°C | 230 mm | 86% | 2 m/s | 4.8 |
| 2006 | 29.1°C | 25.6°C | 22.1°C | 30.9°C | 20.5°C | 290 mm | 86% | 1.9 m/s | 5.1 |
| 2005 | 29.3°C | 25.7°C | 22.1°C | 31.7°C | 19.6°C | 231 mm | 86% | 2.4 m/s | 4.7 |
| 2004 | 30.2°C | 26.1°C | 22.1°C | 31.9°C | 20.6°C | 165 mm | 81% | 1.8 m/s | 5.1 |
| 2003 | 29.1°C | 25.5°C | 21.9°C | 30.8°C | 20.2°C | 80 mm | 85% | 2.9 m/s | 4.3 |
| 2002 | 29.8°C | 25.3°C | 20.8°C | 32.2°C | 19.4°C | 90 mm | 81% | 2.6 m/s | 5.2 |
| 2001 | 31.4°C | 26.5°C | 21.6°C | 34.7°C | 19.4°C | 130 mm | 75% | 1.7 m/s | 5.5 |
| 2000 | 30.2°C | 25.7°C | 21.3°C | 31.9°C | 19.7°C | 48 mm | 79% | 2.1 m/s | 5.2 |
| 1999 | 28.6°C | 25.2°C | 21.7°C | 30.8°C | 20.6°C | 210 mm | 85% | 2.6 m/s | 3.6 |
| 1998 | 28.7°C | 25.6°C | 22.5°C | 30.1°C | 21.3°C | 233 mm | 88% | 2.5 m/s | 4.4 |
| 1997 | 29.7°C | 25.7°C | 21.7°C | 31.5°C | 19.0°C | 82 mm | 81% | 1.7 m/s | 5 |
| 1996 | 29.6°C | 25.5°C | 21.5°C | 31.4°C | 18.9°C | 195 mm | 83% | 2 m/s | 5.2 |
| 1995 | 30.0°C | 25.7°C | 21.5°C | 32.6°C | 19.4°C | 203 mm | 81% | 2.5 m/s | 5.1 |
| 1994 ❄️ | 28.4°C | 24.1°C | 19.8°C | 29.8°C | 15.4°C | 160 mm | 83% | 2.5 m/s | 5.2 |
| 1993 | 28.7°C | 25.0°C | 21.3°C | 30.7°C | 20.4°C | 232 mm | 86% | 2.5 m/s | 5.1 |
| 1992 | 29.4°C | 24.9°C | 20.4°C | 31.0°C | 17.6°C | 130 mm | 81% | 2.4 m/s | 5.4 |
| 1991 | 33.1°C | 27.2°C | 21.4°C | 35.6°C | 19.8°C | 29 mm | 69% | 2.1 m/s | 5.7 |
| 1990 | 29.1°C | 25.3°C | 21.5°C | 30.8°C | 19.3°C | 53 mm | 84% | 2.8 m/s | 4.9 |
| 1989 | 29.9°C | 25.8°C | 21.7°C | 32.3°C | 19.7°C | 81 mm | 81% | 2.1 m/s | 5.4 |
| 1988 | 29.1°C | 25.8°C | 22.4°C | 30.9°C | 20.9°C | 329 mm | 87% | 1.9 m/s | 4.8 |
| 1987 | 31.5°C | 26.7°C | 21.8°C | 34.4°C | 20.3°C | 32 mm | 76% | 2.3 m/s | 5.5 |
| 1986 | 31.3°C | 26.4°C | 21.5°C | 34.7°C | 19.7°C | 54 mm | 75% | 1.8 m/s | 5 |
| 1985 | 32.8°C | 27.3°C | 21.8°C | 36.0°C | 20.3°C | 19 mm | 69% | 2.4 m/s | 5.3 |
| 1984 🔥 | 33.2°C | 27.4°C | 21.6°C | 35.7°C | 20.2°C | 61 mm | 68% | 2.6 m/s | 5.3 |
| 1983 | 28.6°C | 25.4°C | 22.2°C | 30.6°C | 20.2°C | 286 mm | 87% | 2.2 m/s | — |
| 1982 | 29.5°C | 25.4°C | 21.4°C | 31.5°C | 19.2°C | 119 mm | 81% | 2.3 m/s | — |
| 1981 | 28.3°C | 25.1°C | 22.0°C | 30.3°C | 20.7°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 29.7°C with lows near 21.8°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 0.4°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.8°C to 22.3°C while daytime highs eased from 30.5°C to 29°C, narrowing the gap between day and night.
September is one of the cooler months of the year in Washim and a relatively wet time of year, so plan for around 29.7°C daytime highs and 21.8°C at night.
Not quite — September is the 6th coolest month in Washim, averaging 25.8°C.
For September in Washim, pack light layers you can adjust through the day, with typical highs of 29.7°C and lows of 21.8°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.
