September is one of the warmer months of the year in Covington, with average highs near 30°C and lows around 17.3°C (mean 23.7°C). It is about average for rainfall, averaging 92 mm of rainfall and 71% relative humidity across the period.
September is one of the warmer months of the year in Covington. Across 45 years of records, the warmest September in Covington was 2019 — when the month averaged 28°C — while the coldest was 1994 at 21°C. Typical September days reach 30°C with nights near 17.3°C. The long-term trend is warming, about 0.4°C per decade.
September is about average for rainfall in Covington, averaging 92 mm of rainfall. The wettest September on record was 2004 with 313 mm, while the driest was 2005 at 5 mm.
Relative humidity in Covington during September averages 71%. The most humid September was 1992 at 83%, and the least humid was 2019 at 56%.
September receives about 4.7 kWh/m²/day of solar energy in Covington. The sunniest September was 2019 at 5.7 kWh/m²/day, and the cloudiest was 1988 at 3.8.
Average wind speed in Covington during September is 0.5 m/s. The windiest September was 2004 at 0.7 m/s, while the calmest were 2012, 2014 and 2016, among others at 0.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.0°C | 23.4°C | 23.3°C | 24.8°C | 23.9°C | +0.9°C |
| Avg High | 29.3°C | 29.9°C | 29.3°C | 31.3°C | 30.1°C | +0.8°C |
| Avg Low | 16.7°C | 16.9°C | 17.2°C | 18.4°C | 17.7°C | +1°C |
| Avg Rain | 83 mm | 98 mm | 111 mm | 71 mm | 96 mm | +13 mm |
September temperatures in Covington have risen by about 1.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 6.2°C (1983) to a record high of 39.2°C (2019).
Rainfall in September is about average for rainfall, averaging 92 mm, with a wettest year of 313 mm.
One of the best times to visit Covington
September is one of the best times to visit Covington. Expect days averaging 30°C and nights around 17.3°C (mean 23.7°C) — warmer than Covington's yearly average — with higher rainfall (92 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 | 31.2°C | 24.5°C | 17.7°C | 35.4°C | 13.0°C | 27 mm | 68% | 0.5 m/s | 5.3 |
| 2024 | 31.0°C | 25.1°C | 19.2°C | 37.8°C | 16.2°C | 209 mm | 70% | 0.6 m/s | 4.2 |
| 2023 | 31.1°C | 24.3°C | 17.4°C | 35.7°C | 13.1°C | 44 mm | 68% | 0.5 m/s | 4.9 |
| 2022 | 30.0°C | 23.5°C | 17.0°C | 36.1°C | 9.0°C | 52 mm | 69% | 0.5 m/s | 5.1 |
| 2021 | 29.4°C | 23.3°C | 17.2°C | 33.7°C | 9.7°C | 86 mm | 73% | 0.5 m/s | 4.9 |
| 2020 | 28.2°C | 22.8°C | 17.4°C | 35.0°C | 9.0°C | 160 mm | 78% | 0.5 m/s | 4.4 |
| 2019 🔥 | 35.8°C | 28.0°C | 20.3°C | 39.2°C | 14.0°C | 14 mm | 56% | 0.5 m/s | 5.7 |
| 2018 | 33.8°C | 27.5°C | 21.2°C | 36.8°C | 19.2°C | 45 mm | 69% | 0.5 m/s | 4.9 |
| 2017 | 29.6°C | 23.0°C | 16.5°C | 34.6°C | 11.5°C | 106 mm | 70% | 0.6 m/s | 5.3 |
| 2016 | 32.8°C | 26.0°C | 19.2°C | 36.5°C | 11.4°C | 49 mm | 67% | 0.4 m/s | 5.2 |
| 2015 | 28.4°C | 23.0°C | 17.6°C | 35.2°C | 10.4°C | 97 mm | 78% | 0.5 m/s | 4.4 |
| 2014 | 30.7°C | 24.8°C | 18.9°C | 35.1°C | 12.4°C | 76 mm | 74% | 0.4 m/s | 4.2 |
| 2013 | 28.8°C | 22.9°C | 17.1°C | 32.3°C | 11.2°C | 50 mm | 78% | 0.5 m/s | 5 |
| 2012 | 29.8°C | 23.4°C | 17.0°C | 35.5°C | 9.4°C | 78 mm | 73% | 0.4 m/s | 4.8 |
| 2011 | 30.3°C | 23.9°C | 17.6°C | 38.0°C | 13.8°C | 83 mm | 67% | 0.5 m/s | 4.5 |
| 2010 | 32.8°C | 25.5°C | 18.1°C | 36.9°C | 13.0°C | 112 mm | 62% | 0.5 m/s | 5.5 |
| 2009 | 28.4°C | 23.3°C | 18.1°C | 32.6°C | 8.8°C | 221 mm | 79% | 0.5 m/s | 4.2 |
| 2008 | 30.6°C | 24.2°C | 17.7°C | 36.1°C | 10.7°C | 41 mm | 70% | 0.5 m/s | 4.9 |
| 2007 | 31.7°C | 24.9°C | 18.1°C | 35.6°C | 10.9°C | 63 mm | 67% | 0.5 m/s | 5 |
| 2006 | 29.2°C | 22.8°C | 16.4°C | 34.0°C | 9.6°C | 74 mm | 72% | 0.5 m/s | 4.8 |
| 2005 | 31.3°C | 24.6°C | 17.8°C | 35.0°C | 14.0°C | 5 mm | 69% | 0.5 m/s | 5.5 |
| 2004 🌧️ | 27.1°C | 22.2°C | 17.2°C | 32.3°C | 10.1°C | 313 mm | 82% | 0.7 m/s | 4.4 |
| 2003 | 27.8°C | 22.0°C | 16.1°C | 31.9°C | 7.4°C | 60 mm | 76% | 0.5 m/s | 5.1 |
| 2002 | 30.6°C | 25.0°C | 19.4°C | 37.3°C | 15.9°C | 142 mm | 74% | 0.6 m/s | 3.9 |
| 2001 | 29.2°C | 22.3°C | 15.3°C | 34.3°C | 6.8°C | 59 mm | 66% | 0.5 m/s | 5 |
| 2000 | 27.4°C | 21.8°C | 16.2°C | 32.3°C | 8.0°C | 128 mm | 79% | 0.6 m/s | 4.2 |
| 1999 | 31.2°C | 23.2°C | 15.3°C | 37.6°C | 6.8°C | 76 mm | 57% | 0.5 m/s | 5.1 |
| 1998 | 31.1°C | 24.6°C | 18.2°C | 35.0°C | 10.8°C | 122 mm | 71% | 0.5 m/s | 4.6 |
| 1997 | 31.3°C | 24.4°C | 17.5°C | 36.6°C | 11.1°C | 164 mm | 64% | 0.5 m/s | 4.6 |
| 1996 | 29.3°C | 22.9°C | 16.5°C | 34.8°C | 11.2°C | 120 mm | 73% | 0.5 m/s | 4.5 |
| 1995 | 28.8°C | 22.7°C | 16.7°C | 34.9°C | 9.9°C | 81 mm | 77% | 0.5 m/s | 4.5 |
| 1994 ❄️ | 26.5°C | 21.0°C | 15.5°C | 31.2°C | 9.7°C | 117 mm | 82% | 0.5 m/s | 4.9 |
| 1993 | 32.1°C | 24.9°C | 17.7°C | 35.8°C | 7.4°C | 62 mm | 63% | 0.5 m/s | 4.8 |
| 1992 | 27.5°C | 22.5°C | 17.4°C | 31.0°C | 8.8°C | 139 mm | 83% | 0.4 m/s | 4 |
| 1991 | 29.4°C | 23.1°C | 16.7°C | 36.1°C | 8.1°C | 40 mm | 74% | 0.4 m/s | 5.1 |
| 1990 | 31.8°C | 24.6°C | 17.5°C | 37.9°C | 7.5°C | 57 mm | 63% | 0.5 m/s | 5.2 |
| 1989 | 28.3°C | 22.8°C | 17.3°C | 35.4°C | 10.1°C | 192 mm | 78% | 0.5 m/s | 3.9 |
| 1988 | 28.0°C | 22.7°C | 17.4°C | 32.5°C | 12.2°C | 159 mm | 81% | 0.5 m/s | 3.8 |
| 1987 | 30.3°C | 23.9°C | 17.4°C | 34.2°C | 11.0°C | 59 mm | 68% | 0.5 m/s | 4.6 |
| 1986 | 30.0°C | 24.2°C | 18.4°C | 35.2°C | 14.5°C | 77 mm | 76% | 0.5 m/s | 4.1 |
| 1985 | 30.3°C | 23.2°C | 16.1°C | 35.2°C | 7.8°C | 32 mm | 65% | 0.5 m/s | 5.1 |
| 1984 | 29.3°C | 22.2°C | 15.2°C | 35.4°C | 10.3°C | 13 mm | 66% | 0.5 m/s | 5 |
| 1983 | 27.9°C | 22.0°C | 16.1°C | 35.2°C | 6.2°C | 111 mm | 73% | 0.5 m/s | — |
| 1982 | 29.0°C | 22.5°C | 16.1°C | 34.0°C | 7.8°C | 61 mm | 69% | 0.5 m/s | — |
| 1981 | 31.0°C | 23.5°C | 16.0°C | 34.0°C | 8.2°C | 42 mm | 60% | 0.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30°C with lows near 17.3°C (mean 23.7°C), based on 45 years of NASA POWER data.
September averages 92 mm of rainfall in Covington, about average for rainfall. The wettest on record was 313 mm in 2004.
The hottest September reached 39.2°C in 2019. The coldest dipped to 6.2°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.4°C. Daytime highs moved from 29.5°C to 30.5°C and overnight lows from 15.9°C to 17.7°C over the same span.
September is one of the warmer months of the year in Covington and about average for rainfall, so plan for around 30°C daytime highs and 17.3°C at night.
Not quite — September is the 9th coolest month in Covington, averaging 23.7°C.
For September in Covington, pack light, breathable clothing and sun protection, with typical highs of 30°C and lows of 17.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 71% — moderately humid.
Average wind speed in September is 0.5 m/s. The windiest September on record averaged 0.7 m/s (2004).
The wettest September on record was 2004 with 313 mm. On average, September sees 92 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 Covington 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.
