August is one of the warmer months of the year in Newnan, with average highs near 33°C and lows around 20.3°C (mean 26.7°C). It is about average for rainfall, averaging 98 mm of rainfall and 71% relative humidity across the period.
August is one of the warmer months of the year in Newnan. Across 45 years of records, the warmest August in Newnan was 2007 — when the month averaged 29.7°C — while the coldest were 1992 and 1994 at 24.3°C. Typical August days reach 33°C with nights near 20.3°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Newnan, averaging 98 mm of rainfall. The wettest August on record was 2021 with 174 mm, while the driest was 2011 at 37 mm.
Relative humidity in Newnan during August averages 71%. The most humid August was 2013 at 82%, and the least humid was 1999 at 59%.
August receives about 5.4 kWh/m²/day of solar energy in Newnan. The sunniest August was 2024 at 6.6 kWh/m²/day, and the cloudiest was 1992 at 4.8.
Average wind speed in Newnan during August is 0.1 m/s. The windiest Augusts were 2021, 2023 and 2024, among others at 0.1 m/s, while the calmest were 2016, 2022 and 2025, among others at 0 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.2°C | 26.3°C | 26.9°C | 27.0°C | 26.9°C | +0.7°C |
| Avg High | 32.4°C | 32.7°C | 33.3°C | 33.2°C | 33.4°C | +1°C |
| Avg Low | 20.0°C | 19.9°C | 20.4°C | 20.7°C | 20.4°C | +0.4°C |
| Avg Rain | 91 mm | 92 mm | 98 mm | 94 mm | 126 mm | +35 mm |
August temperatures in Newnan have risen by about 0.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 11.7°C (2004) to a record high of 40.9°C (1983).
Rainfall in August is about average for rainfall, averaging 98 mm, with a wettest year of 174 mm.
A good time to visit Newnan
August is a good time to visit Newnan, with days averaging 33°C and nights around 20.3°C (mean 26.7°C, warmer than Newnan's yearly average) and higher rainfall. September and May are marginally more temperate, but August still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.0°C | 25.8°C | 19.6°C | 37.1°C | 13.0°C | 112 mm | 73% | 0 m/s | 4.9 |
| 2024 | 35.0°C | 27.3°C | 19.7°C | 38.6°C | 14.8°C | 47 mm | 65% | 0.1 m/s | 6.6 |
| 2023 | 35.2°C | 28.0°C | 20.8°C | 39.2°C | 17.0°C | 143 mm | 70% | 0.1 m/s | 5.8 |
| 2022 | 32.4°C | 26.3°C | 20.3°C | 35.8°C | 17.9°C | 125 mm | 75% | 0 m/s | 5.3 |
| 2021 🌧️ | 32.5°C | 26.7°C | 20.8°C | 37.3°C | 17.8°C | 174 mm | 75% | 0.1 m/s | 5.4 |
| 2020 | 33.3°C | 27.1°C | 21.0°C | 37.4°C | 17.0°C | 156 mm | 73% | 0.1 m/s | 5.4 |
| 2019 | 35.1°C | 28.1°C | 21.0°C | 39.7°C | 15.8°C | 81 mm | 67% | 0.1 m/s | 6 |
| 2018 | 31.6°C | 26.0°C | 20.4°C | 34.9°C | 16.4°C | 127 mm | 77% | 0.1 m/s | 5.7 |
| 2017 | 31.9°C | 26.0°C | 20.1°C | 37.1°C | 16.8°C | 126 mm | 73% | 0.1 m/s | 5.3 |
| 2016 | 34.7°C | 28.3°C | 21.9°C | 38.1°C | 19.8°C | 81 mm | 69% | 0 m/s | 5.7 |
| 2015 | 32.9°C | 26.5°C | 20.1°C | 37.6°C | 13.9°C | 128 mm | 70% | 0 m/s | 5.7 |
| 2014 | 33.6°C | 26.7°C | 19.9°C | 38.1°C | 15.1°C | 70 mm | 67% | 0.1 m/s | 6 |
| 2013 | 30.1°C | 25.0°C | 20.0°C | 33.5°C | 14.9°C | 87 mm | 82% | 0.1 m/s | 5 |
| 2012 | 32.3°C | 26.0°C | 19.8°C | 37.4°C | 14.9°C | 105 mm | 73% | 0.1 m/s | 5.2 |
| 2011 | 35.4°C | 28.3°C | 21.1°C | 38.6°C | 17.6°C | 37 mm | 63% | 0 m/s | 6 |
| 2010 | 34.8°C | 28.7°C | 22.6°C | 38.2°C | 18.7°C | 95 mm | 72% | 0 m/s | 5.6 |
| 2009 | 31.7°C | 25.8°C | 19.8°C | 37.0°C | 15.3°C | 133 mm | 76% | 0.1 m/s | 5.3 |
| 2008 | 32.2°C | 26.1°C | 19.9°C | 37.1°C | 15.0°C | 158 mm | 72% | 0 m/s | 5.2 |
| 2007 🔥 | 36.8°C | 29.7°C | 22.5°C | 40.7°C | 20.0°C | 83 mm | 62% | 0.1 m/s | 5.8 |
| 2006 | 35.4°C | 28.7°C | 22.0°C | 38.8°C | 18.9°C | 85 mm | 67% | 0 m/s | 5.2 |
| 2005 | 31.4°C | 26.2°C | 21.0°C | 36.7°C | 17.3°C | 123 mm | 80% | 0.1 m/s | 5.1 |
| 2004 | 32.3°C | 25.2°C | 18.1°C | 37.3°C | 11.7°C | 89 mm | 69% | 0.1 m/s | 5.6 |
| 2003 | 31.3°C | 26.1°C | 20.9°C | 34.4°C | 18.5°C | 95 mm | 81% | 0.1 m/s | 5.3 |
| 2002 | 34.2°C | 27.1°C | 20.1°C | 37.6°C | 16.3°C | 44 mm | 65% | 0.1 m/s | 5.7 |
| 2001 | 32.9°C | 26.4°C | 20.0°C | 35.9°C | 14.6°C | 75 mm | 70% | 0.1 m/s | 5.2 |
| 2000 | 34.7°C | 27.3°C | 20.0°C | 40.2°C | 15.6°C | 91 mm | 61% | 0.1 m/s | 5.7 |
| 1999 | 36.0°C | 27.9°C | 19.9°C | 40.0°C | 16.4°C | 45 mm | 59% | 0.1 m/s | 6.2 |
| 1998 | 33.1°C | 26.2°C | 19.2°C | 37.3°C | 14.2°C | 105 mm | 67% | 0.1 m/s | 5.7 |
| 1997 | 31.6°C | 25.3°C | 18.9°C | 35.1°C | 13.9°C | 50 mm | 72% | 0.1 m/s | 5.6 |
| 1996 | 33.2°C | 26.6°C | 20.0°C | 35.5°C | 17.5°C | 81 mm | 68% | 0.1 m/s | 5.2 |
| 1995 | 34.6°C | 28.1°C | 21.7°C | 40.7°C | 19.1°C | 114 mm | 69% | 0 m/s | 5.1 |
| 1994 | 29.7°C | 24.3°C | 18.9°C | 33.8°C | 15.3°C | 99 mm | 79% | 0.1 m/s | 5.3 |
| 1993 | 33.8°C | 27.3°C | 20.7°C | 37.9°C | 17.7°C | 87 mm | 69% | 0.1 m/s | 5.3 |
| 1992 ❄️ | 30.0°C | 24.3°C | 18.7°C | 35.1°C | 11.9°C | 168 mm | 76% | 0.1 m/s | 4.8 |
| 1991 | 30.1°C | 25.0°C | 19.8°C | 35.0°C | 14.0°C | 102 mm | 81% | 0.1 m/s | 5.1 |
| 1990 | 35.2°C | 28.1°C | 20.9°C | 38.4°C | 17.6°C | 68 mm | 63% | 0.1 m/s | 5.5 |
| 1989 | 30.3°C | 24.9°C | 19.4°C | 34.0°C | 13.2°C | 78 mm | 78% | 0.1 m/s | 5.6 |
| 1988 | 34.1°C | 27.5°C | 20.9°C | 38.3°C | 15.9°C | 84 mm | 68% | 0.1 m/s | 5.2 |
| 1987 | 34.8°C | 28.0°C | 21.2°C | 38.0°C | 17.9°C | 67 mm | 66% | 0 m/s | 5.5 |
| 1986 | 32.2°C | 26.0°C | 19.8°C | 38.8°C | 12.1°C | 138 mm | 69% | 0 m/s | 4.9 |
| 1985 | 31.0°C | 25.2°C | 19.4°C | 35.3°C | 14.7°C | 114 mm | 76% | 0 m/s | 5.2 |
| 1984 | 29.6°C | 24.5°C | 19.3°C | 32.7°C | 15.9°C | 106 mm | 82% | 0.1 m/s | 4.9 |
| 1983 | 35.1°C | 28.2°C | 21.2°C | 40.9°C | 15.9°C | 60 mm | 64% | 0.1 m/s | — |
| 1982 | 31.8°C | 25.6°C | 19.5°C | 35.1°C | 16.3°C | 70 mm | 74% | 0.1 m/s | — |
| 1981 | 32.6°C | 26.0°C | 19.5°C | 37.5°C | 16.5°C | 102 mm | 69% | 0.1 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 33°C with lows near 20.3°C (mean 26.7°C), based on 45 years of NASA POWER data.
August averages 98 mm of rainfall in Newnan, about average for rainfall. The wettest on record was 174 mm in 2021.
The hottest August reached 40.9°C in 1983. The coldest dipped to 11.7°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.9°C. Daytime highs moved from 32°C to 33.4°C and overnight lows from 19.8°C to 20.2°C over the same span.
August is one of the warmer months of the year in Newnan and about average for rainfall, so plan for around 33°C daytime highs and 20.3°C at night.
Not quite — August is the 11th coolest month in Newnan, averaging 26.7°C.
For August in Newnan, pack light, breathable clothing and sun protection, with typical highs of 33°C and lows of 20.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 71% — moderately humid.
Average wind speed in August is 0.1 m/s. The windiest August on record averaged 0.1 m/s (1981).
The wettest August on record was 2021 with 174 mm. On average, August sees 98 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 Newnan 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.
