September is one of the warmer months of the year in Wichita, with average highs near 29°C and lows around 16°C (mean 22.5°C). It is about average for rainfall, averaging 72 mm of rainfall and 61% relative humidity across the period.
September is one of the warmer months of the year in Wichita. Across 45 years of records, the warmest September in Wichita was 1998 — when the month averaged 26.7°C — while the coldest was 1989 at 18.5°C. Typical September days reach 29°C with nights near 16°C. The long-term trend is warming, about 0.5°C per decade.
September is about average for rainfall in Wichita, averaging 72 mm of rainfall. The wettest September on record was 2008 with 176 mm, while the driest was 2000 at 18 mm.
Relative humidity in Wichita during September averages 61%. The most humid September was 2019 at 75%, and the least humid was 2000 at 41%.
September receives about 5 kWh/m²/day of solar energy in Wichita. The sunniest September was 2004 at 5.6 kWh/m²/day, and the cloudiest was 1985 at 4.2.
Average wind speed in Wichita during September is 3.3 m/s. The windiest September was 1985 at 4.2 m/s, while the calmest was 2025 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.9°C | 21.9°C | 22.0°C | 23.4°C | 23.8°C | +1.9°C |
| Avg High | 28.4°C | 28.3°C | 28.6°C | 29.7°C | 30.7°C | +2.3°C |
| Avg Low | 15.5°C | 15.3°C | 15.3°C | 17.1°C | 16.9°C | +1.4°C |
| Avg Rain | 82 mm | 76 mm | 65 mm | 69 mm | 66 mm | -16 mm |
September temperatures in Wichita have risen by about 2°C between 1981–1985 and 2021–2025.
September has ranged from a record low of -0.3°C (1995) to a record high of 42.4°C (2000).
Rainfall in September is about average for rainfall, averaging 72 mm, with a wettest year of 176 mm.
One of the best times to visit Wichita
September is one of the best times to visit Wichita. Expect days averaging 29°C and nights around 16°C (mean 22.5°C) — warmer than Wichita's yearly average — with moderate rainfall (72 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 28.4°C | 22.5°C | 16.5°C | 33.8°C | 9.8°C | 121 mm | 72% | 2.3 m/s | 4.6 |
| 2024 | 31.5°C | 24.2°C | 16.8°C | 38.7°C | 11.4°C | 65 mm | 53% | 2.6 m/s | 5.5 |
| 2023 | 32.1°C | 25.0°C | 17.9°C | 38.0°C | 13.7°C | 40 mm | 54% | 3 m/s | 5.1 |
| 2022 | 32.7°C | 25.1°C | 17.4°C | 38.5°C | 11.6°C | 21 mm | 48% | 3.2 m/s | 5.5 |
| 2021 | 32.0°C | 25.1°C | 18.2°C | 36.9°C | 10.2°C | 88 mm | 57% | 3.3 m/s | 5.5 |
| 2020 | 27.6°C | 21.1°C | 14.5°C | 36.3°C | 7.0°C | 62 mm | 68% | 3 m/s | 4.7 |
| 2019 | 30.8°C | 25.4°C | 20.0°C | 33.6°C | 14.3°C | 55 mm | 75% | 3.5 m/s | 5 |
| 2018 | 28.1°C | 22.6°C | 17.2°C | 36.1°C | 7.4°C | 111 mm | 74% | 3.2 m/s | 4.4 |
| 2017 | 30.4°C | 23.9°C | 17.3°C | 35.8°C | 11.4°C | 75 mm | 59% | 3.2 m/s | 4.8 |
| 2016 | 28.5°C | 22.8°C | 17.0°C | 34.2°C | 8.1°C | 146 mm | 72% | 3.3 m/s | 5.1 |
| 2015 | 31.0°C | 24.7°C | 18.5°C | 37.4°C | 12.4°C | 46 mm | 63% | 3.5 m/s | 5.2 |
| 2014 | 29.5°C | 22.9°C | 16.2°C | 36.4°C | 6.0°C | 52 mm | 62% | 3.6 m/s | 5.2 |
| 2013 | 30.2°C | 23.6°C | 17.0°C | 37.9°C | 9.4°C | 56 mm | 61% | 3.2 m/s | 5.3 |
| 2012 | 30.0°C | 22.9°C | 15.9°C | 41.7°C | 9.2°C | 52 mm | 54% | 2.9 m/s | 4.9 |
| 2011 | 28.8°C | 21.7°C | 14.5°C | 42.0°C | 9.1°C | 42 mm | 46% | 3.1 m/s | 5.3 |
| 2010 | 29.8°C | 23.4°C | 17.0°C | 35.2°C | 7.2°C | 54 mm | 65% | 3.7 m/s | 5.2 |
| 2009 | 25.6°C | 19.9°C | 14.3°C | 31.0°C | 6.4°C | 115 mm | 74% | 2.8 m/s | 4.3 |
| 2008 🌧️ | 26.0°C | 20.0°C | 14.1°C | 32.2°C | 7.1°C | 176 mm | 75% | 3.1 m/s | 4.5 |
| 2007 | 29.1°C | 22.9°C | 16.7°C | 33.4°C | 9.4°C | 30 mm | 67% | 3.5 m/s | 4.9 |
| 2006 | 27.4°C | 20.7°C | 13.9°C | 33.6°C | 7.3°C | 29 mm | 54% | 3.3 m/s | 5.3 |
| 2005 | 30.5°C | 24.0°C | 17.5°C | 35.7°C | 6.1°C | 22 mm | 63% | 3.4 m/s | 5.3 |
| 2004 | 30.4°C | 23.4°C | 16.3°C | 35.8°C | 11.4°C | 32 mm | 54% | 3.5 m/s | 5.6 |
| 2003 | 25.4°C | 19.2°C | 13.0°C | 31.2°C | 5.7°C | 92 mm | 67% | 3.3 m/s | 4.9 |
| 2002 | 30.9°C | 23.7°C | 16.5°C | 37.9°C | 9.2°C | 41 mm | 55% | 3.1 m/s | 5.3 |
| 2001 | 28.5°C | 21.6°C | 14.6°C | 35.3°C | 5.4°C | 91 mm | 61% | 2.8 m/s | 5.2 |
| 2000 | 32.3°C | 24.3°C | 16.2°C | 42.4°C | 2.7°C | 18 mm | 41% | 3.8 m/s | 5.4 |
| 1999 | 25.8°C | 19.8°C | 13.9°C | 34.2°C | 5.7°C | 121 mm | 66% | 3.1 m/s | 4.4 |
| 1998 🔥 | 33.5°C | 26.7°C | 19.9°C | 41.1°C | 12.9°C | 59 mm | 56% | 3.1 m/s | 5.3 |
| 1997 | 28.6°C | 22.4°C | 16.1°C | 35.4°C | 11.1°C | 120 mm | 69% | 3.1 m/s | 4.9 |
| 1996 | 26.4°C | 20.2°C | 13.9°C | 34.6°C | 2.9°C | 135 mm | 67% | 2.8 m/s | 4.6 |
| 1995 | 26.6°C | 20.4°C | 14.1°C | 37.2°C | -0.3°C | 65 mm | 67% | 3 m/s | 4.5 |
| 1994 | 28.8°C | 21.9°C | 14.9°C | 34.8°C | 6.0°C | 41 mm | 58% | 3.4 m/s | 5 |
| 1993 | 26.4°C | 19.5°C | 12.5°C | 33.2°C | 5.0°C | 59 mm | 66% | 3.5 m/s | 4.8 |
| 1992 | 28.7°C | 21.8°C | 14.9°C | 33.4°C | 5.3°C | 41 mm | 62% | 3.7 m/s | 5.2 |
| 1991 | 27.8°C | 21.6°C | 15.4°C | 35.4°C | 4.3°C | 38 mm | 58% | 3.3 m/s | 4.9 |
| 1990 | 30.8°C | 24.3°C | 17.8°C | 40.7°C | 5.7°C | 83 mm | 54% | 2.7 m/s | 5 |
| 1989 ❄️ | 24.5°C | 18.5°C | 12.5°C | 33.1°C | 1.3°C | 109 mm | 72% | 3.1 m/s | 4.8 |
| 1988 | 29.9°C | 22.9°C | 15.8°C | 38.5°C | 9.3°C | 40 mm | 53% | 3.5 m/s | 4.8 |
| 1987 | 27.1°C | 20.8°C | 14.6°C | 32.3°C | 8.5°C | 90 mm | 68% | 2.5 m/s | 5.2 |
| 1986 | 28.7°C | 23.3°C | 18.0°C | 33.0°C | 11.2°C | 129 mm | 71% | 3.8 m/s | 4.4 |
| 1985 | 27.6°C | 21.5°C | 15.4°C | 39.5°C | 0.2°C | 158 mm | 65% | 4.2 m/s | 4.2 |
| 1984 | 28.8°C | 22.0°C | 15.2°C | 40.3°C | 2.6°C | 32 mm | 48% | 3.8 m/s | 4.8 |
| 1983 | 30.0°C | 23.2°C | 16.4°C | 37.9°C | 3.6°C | 71 mm | 56% | 3.8 m/s | — |
| 1982 | 29.3°C | 22.7°C | 16.1°C | 36.4°C | 5.9°C | 38 mm | 57% | 3.5 m/s | — |
| 1981 | 29.4°C | 22.5°C | 15.6°C | 34.0°C | 6.5°C | 68 mm | 58% | 3.2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29°C with lows near 16°C (mean 22.5°C), based on 45 years of NASA POWER data.
September averages 72 mm of rainfall in Wichita, about average for rainfall. The wettest on record was 176 mm in 2008.
The hottest September reached 42.4°C in 2000. The coldest dipped to -0.3°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 2°C. Daytime highs moved from 29°C to 31.3°C and overnight lows from 15.7°C to 17.4°C over the same span.
September is one of the warmer months of the year in Wichita and about average for rainfall, so plan for around 29°C daytime highs and 16°C at night.
Not quite — September is the 9th coolest month in Wichita, averaging 22.5°C.
For September in Wichita, pack light layers you can adjust through the day, with typical highs of 29°C and lows of 16°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 61% — moderately humid.
Average wind speed in September is 3.3 m/s. The windiest September on record averaged 4.2 m/s (1985).
The wettest September on record was 2008 with 176 mm. On average, September sees 72 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 Wichita 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.
