August is one of the cooler months of the year in Richmond, with average highs near 29.3°C and lows around 12.6°C (mean 21°C). It is one of the drier months, averaging 5 mm of rainfall and 38% relative humidity across the period.
August is one of the cooler months of the year in Richmond. Across 45 years of records, the warmest August in Richmond was 2009 — when the month averaged 24.1°C — while the coldest was 1990 at 18.6°C. Typical August days reach 29.3°C with nights near 12.6°C. The long-term trend is warming, about 0.3°C per decade.
August is one of the drier months in Richmond, averaging 5 mm of rainfall. The wettest August on record was 1988 with 66 mm, while the driest were 2019, 2023 and 2024, among others at 0 mm.
Relative humidity in Richmond during August averages 38%. The most humid August was 2007 at 58%, and the least humid was 2018 at 25%.
August receives about 5.9 kWh/m²/day of solar energy in Richmond. The sunniest Augusts were 1985, 1989 and 2013 at 6.2 kWh/m²/day, and the cloudiest was 2010 at 5.4.
Average wind speed in Richmond during August is 3.1 m/s. The windiest August was 1995 at 4.1 m/s, while the calmest was 2009 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.5°C | 20.9°C | 20.7°C | 20.9°C | 22.2°C | +1.7°C |
| Avg High | 28.8°C | 29.1°C | 29.1°C | 29.4°C | 30.4°C | +1.6°C |
| Avg Low | 12.1°C | 12.7°C | 12.4°C | 12.4°C | 13.9°C | +1.8°C |
| Avg Rain | 9 mm | 7 mm | 5 mm | 3 mm | 3 mm | -6 mm |
August temperatures in Richmond have risen by about 1.5°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 2.5°C (1990) to a record high of 37.5°C (2024).
Rainfall in August is one of the drier months, averaging 5 mm, with a wettest year of 66 mm.
One of the best times to visit Richmond
August is one of the best times to visit Richmond. Expect days averaging 29.3°C and nights around 12.6°C (mean 21°C) — cooler than Richmond's yearly average — with low rainfall (5 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 | 29.1°C | 20.8°C | 12.5°C | 35.7°C | 5.7°C | 1 mm | 36% | 3.1 m/s | 5.8 |
| 2024 | 32.4°C | 24.0°C | 15.6°C | 37.5°C | 12.3°C | 0 mm | 40% | 3 m/s | 5.9 |
| 2023 | 30.5°C | 22.5°C | 14.4°C | 33.5°C | 9.0°C | 0 mm | 38% | 3.3 m/s | 6 |
| 2022 | 29.9°C | 21.6°C | 13.2°C | 35.3°C | 6.2°C | 5 mm | 40% | 3.3 m/s | 5.8 |
| 2021 | 30.3°C | 22.6°C | 14.9°C | 34.8°C | 8.3°C | 8 mm | 35% | 3.2 m/s | 5.7 |
| 2020 | 29.9°C | 21.5°C | 13.0°C | 34.7°C | 7.5°C | 3 mm | 31% | 3.2 m/s | 6 |
| 2019 | 28.8°C | 20.6°C | 12.3°C | 33.5°C | 6.5°C | 0 mm | 31% | 3.2 m/s | 6 |
| 2018 | 29.5°C | 20.6°C | 11.6°C | 33.7°C | 6.8°C | 0 mm | 25% | 2.9 m/s | 6.1 |
| 2017 | 31.1°C | 22.0°C | 12.9°C | 35.3°C | 8.8°C | 0 mm | 26% | 2.9 m/s | 6.1 |
| 2016 | 28.4°C | 20.8°C | 13.3°C | 33.7°C | 6.0°C | 8 mm | 50% | 3.2 m/s | 5.7 |
| 2015 | 30.1°C | 21.5°C | 12.8°C | 34.9°C | 7.3°C | 0 mm | 31% | 2.8 m/s | 6 |
| 2014 | 28.1°C | 20.0°C | 12.0°C | 30.3°C | 7.2°C | 5 mm | 40% | 3.4 m/s | 5.8 |
| 2013 | 31.2°C | 22.1°C | 13.0°C | 35.1°C | 8.4°C | 0 mm | 27% | 2.7 m/s | 6.2 |
| 2012 | 28.9°C | 19.9°C | 11.0°C | 33.9°C | 5.2°C | 1 mm | 40% | 2.7 m/s | 5.9 |
| 2011 | 28.7°C | 20.4°C | 12.1°C | 34.2°C | 7.8°C | 0 mm | 39% | 3.1 m/s | 5.9 |
| 2010 | 28.7°C | 20.7°C | 12.6°C | 36.3°C | 5.6°C | 20 mm | 46% | 3.3 m/s | 5.4 |
| 2009 🔥 | 32.9°C | 24.1°C | 15.3°C | 37.3°C | 9.2°C | 0 mm | 34% | 2.5 m/s | 6.1 |
| 2008 | 27.9°C | 19.1°C | 10.3°C | 35.9°C | 5.3°C | 0 mm | 42% | 3.3 m/s | 5.8 |
| 2007 | 27.8°C | 20.1°C | 12.5°C | 31.6°C | 4.9°C | 1 mm | 58% | 3.1 m/s | 5.5 |
| 2006 | 28.8°C | 20.0°C | 11.1°C | 33.0°C | 6.4°C | 0 mm | 36% | 3.1 m/s | 6.1 |
| 2005 | 27.3°C | 19.7°C | 12.1°C | 32.2°C | 4.5°C | 34 mm | 54% | 3.2 m/s | 5.5 |
| 2004 | 28.9°C | 20.2°C | 11.5°C | 33.1°C | 6.7°C | 0 mm | 28% | 2.7 m/s | 6.1 |
| 2003 | 30.4°C | 22.1°C | 13.9°C | 34.9°C | 4.5°C | 5 mm | 38% | 2.9 m/s | 5.7 |
| 2002 | 28.7°C | 20.4°C | 12.2°C | 33.4°C | 7.3°C | 6 mm | 35% | 2.8 m/s | 5.5 |
| 2001 | 28.7°C | 20.1°C | 11.6°C | 32.3°C | 6.9°C | 0 mm | 33% | 3 m/s | 5.9 |
| 2000 | 29.8°C | 21.4°C | 13.1°C | 36.3°C | 8.6°C | 1 mm | 36% | 2.8 m/s | 6 |
| 1999 | 29.6°C | 21.7°C | 13.7°C | 33.4°C | 6.8°C | 0 mm | 37% | 3.3 m/s | 6 |
| 1998 | 30.4°C | 22.6°C | 14.8°C | 35.2°C | 5.5°C | 21 mm | 45% | 3.1 m/s | 5.6 |
| 1997 | 28.6°C | 20.7°C | 12.8°C | 31.2°C | 6.3°C | 0 mm | 35% | 2.9 m/s | 5.6 |
| 1996 | 29.8°C | 21.5°C | 13.3°C | 35.2°C | 5.1°C | 19 mm | 40% | 3 m/s | 5.7 |
| 1995 | 27.7°C | 19.9°C | 12.1°C | 33.1°C | 2.9°C | 22 mm | 49% | 4.1 m/s | 5.7 |
| 1994 | 28.0°C | 19.7°C | 11.4°C | 31.5°C | 5.0°C | 0 mm | 35% | 3.6 m/s | 6 |
| 1993 | 29.2°C | 21.1°C | 13.0°C | 32.5°C | 5.5°C | 5 mm | 39% | 3 m/s | 5.8 |
| 1992 | 30.5°C | 22.5°C | 14.5°C | 35.9°C | 8.4°C | 0 mm | 33% | 3 m/s | 5.9 |
| 1991 | 30.0°C | 20.9°C | 11.8°C | 35.1°C | 7.9°C | 0 mm | 28% | 2.9 m/s | 5.8 |
| 1990 ❄️ | 27.3°C | 18.6°C | 9.8°C | 32.9°C | 2.5°C | 0 mm | 45% | 2.9 m/s | 6.1 |
| 1989 | 27.4°C | 18.7°C | 9.9°C | 37.2°C | 5.0°C | 1 mm | 36% | 3.3 m/s | 6.2 |
| 1988 🌧️ | 29.0°C | 21.2°C | 13.5°C | 36.7°C | 6.3°C | 66 mm | 46% | 3.6 m/s | 5.5 |
| 1987 | 29.3°C | 20.8°C | 12.4°C | 35.3°C | 7.1°C | 1 mm | 35% | 3.2 m/s | 5.9 |
| 1986 | 27.8°C | 19.4°C | 11.1°C | 33.0°C | 4.6°C | 3 mm | 39% | 2.8 m/s | 5.6 |
| 1985 | 30.2°C | 21.3°C | 12.4°C | 36.2°C | 5.5°C | 3 mm | 44% | 2.8 m/s | 6.2 |
| 1984 | 28.2°C | 19.8°C | 11.4°C | 32.8°C | 4.1°C | 1 mm | 49% | 2.8 m/s | 6 |
| 1983 | 29.0°C | 20.9°C | 12.8°C | 34.8°C | 5.1°C | 3 mm | 45% | 3.4 m/s | — |
| 1982 | 28.2°C | 20.6°C | 12.9°C | 30.9°C | 4.4°C | 0 mm | 41% | 3.9 m/s | — |
| 1981 | 30.1°C | 21.5°C | 12.8°C | 34.1°C | 7.3°C | 1 mm | 34% | 2.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 29.3°C with lows near 12.6°C (mean 21°C), based on 45 years of NASA POWER data.
August averages 5 mm of rainfall in Richmond, one of the drier months. The wettest on record was 66 mm in 1988.
The hottest August reached 37.5°C in 2024. The coldest dipped to 2.5°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.5°C. Daytime highs moved from 29.1°C to 30.4°C and overnight lows from 12.5°C to 14.1°C over the same span.
August is one of the cooler months of the year in Richmond and one of the drier months, so plan for around 29.3°C daytime highs and 12.6°C at night.
Not quite — August is the 3rd coolest month in Richmond, averaging 21°C.
For August in Richmond, pack light layers you can adjust through the day, with typical highs of 29.3°C and lows of 12.6°C.
Relative humidity in August averages 38% — relatively dry.
Average wind speed in August is 3.1 m/s. The windiest August on record averaged 4.1 m/s (1995).
The wettest August on record was 1988 with 66 mm. On average, August sees 5 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 Richmond behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
