August is one of the warmer months of the year in Grovetown, with average highs near 33.1°C and lows around 21.6°C (mean 27.4°C). It is a relatively wet time of year, averaging 114 mm of rainfall and 71% relative humidity across the period.
August is one of the warmer months of the year in Grovetown. Across 45 years of records, the warmest August in Grovetown was 2007 — when the month averaged 30.6°C — while the coldest was 1994 at 25°C. Typical August days reach 33.1°C with nights near 21.6°C. The long-term trend is warming, about 0.2°C per decade.
August is a relatively wet time of year in Grovetown, averaging 114 mm of rainfall. The wettest August on record was 2025 with 231 mm, while the driest was 1997 at 41 mm.
Relative humidity in Grovetown during August averages 71%. The most humid Augusts were 1991 and 2003 at 83%, and the least humid was 1999 at 57%.
August receives about 5.5 kWh/m²/day of solar energy in Grovetown. The sunniest Augusts were 1997 and 2024 at 6.1 kWh/m²/day, and the cloudiest were 1986 and 2025 at 4.9.
Average wind speed in Grovetown during August is 0.9 m/s. The windiest August was 1995 at 1.2 m/s, while the calmest were 2003, 2020 and 2022 at 0.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.0°C | 27.1°C | 27.8°C | 27.6°C | 27.4°C | +0.4°C |
| Avg High | 32.6°C | 32.9°C | 33.7°C | 33.3°C | 32.8°C | +0.2°C |
| Avg Low | 21.3°C | 21.3°C | 21.8°C | 22.0°C | 21.9°C | +0.6°C |
| Avg Rain | 101 mm | 121 mm | 97 mm | 114 mm | 150 mm | +48 mm |
August temperatures in Grovetown have risen by about 0.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 13.1°C (1986) to a record high of 42.2°C (1999).
Rainfall in August is a relatively wet time of year, averaging 114 mm, with a wettest year of 231 mm.
A good time to visit Grovetown
August is a good time to visit Grovetown, with days averaging 33.1°C and nights around 21.6°C (mean 27.4°C, warmer than Grovetown's yearly average) and higher rainfall. May and September 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 🌧️ | 30.2°C | 25.5°C | 20.8°C | 38.0°C | 15.8°C | 231 mm | 80% | 0.9 m/s | 4.9 |
| 2024 | 33.0°C | 27.3°C | 21.7°C | 37.0°C | 15.6°C | 105 mm | 75% | 1 m/s | 6.1 |
| 2023 | 34.9°C | 28.7°C | 22.5°C | 40.5°C | 18.6°C | 162 mm | 70% | 0.9 m/s | 5.9 |
| 2022 | 32.2°C | 27.1°C | 22.0°C | 36.9°C | 20.4°C | 128 mm | 75% | 0.7 m/s | 5.2 |
| 2021 | 33.2°C | 27.7°C | 22.2°C | 36.0°C | 19.7°C | 118 mm | 74% | 0.8 m/s | 5.5 |
| 2020 | 33.2°C | 27.8°C | 22.4°C | 38.3°C | 20.0°C | 156 mm | 74% | 0.7 m/s | 5.6 |
| 2019 | 34.1°C | 28.2°C | 22.3°C | 38.7°C | 17.1°C | 146 mm | 69% | 0.8 m/s | 5.9 |
| 2018 | 33.4°C | 27.5°C | 21.7°C | 37.0°C | 17.7°C | 87 mm | 73% | 0.9 m/s | 6 |
| 2017 | 32.8°C | 27.2°C | 21.7°C | 37.0°C | 17.2°C | 103 mm | 71% | 0.9 m/s | 5.4 |
| 2016 | 34.7°C | 28.9°C | 23.1°C | 38.1°C | 21.4°C | 101 mm | 68% | 0.9 m/s | 5.6 |
| 2015 | 33.6°C | 28.0°C | 22.3°C | 38.9°C | 18.1°C | 145 mm | 68% | 0.9 m/s | 5.5 |
| 2014 | 34.0°C | 27.5°C | 21.0°C | 38.6°C | 16.4°C | 67 mm | 65% | 0.9 m/s | 5.9 |
| 2013 | 29.6°C | 25.1°C | 20.7°C | 34.2°C | 15.1°C | 157 mm | 83% | 0.8 m/s | 5.1 |
| 2012 | 31.0°C | 25.9°C | 20.9°C | 36.9°C | 16.6°C | 155 mm | 78% | 0.8 m/s | 5.3 |
| 2011 | 36.3°C | 29.7°C | 23.0°C | 40.9°C | 19.5°C | 57 mm | 61% | 0.9 m/s | 6 |
| 2010 | 33.4°C | 28.2°C | 23.0°C | 37.7°C | 18.4°C | 120 mm | 76% | 0.9 m/s | 5.5 |
| 2009 | 33.1°C | 27.3°C | 21.6°C | 38.9°C | 18.7°C | 109 mm | 71% | 0.8 m/s | 5.6 |
| 2008 | 33.3°C | 27.4°C | 21.6°C | 40.1°C | 17.5°C | 107 mm | 69% | 1.1 m/s | 5.3 |
| 2007 🔥 | 37.5°C | 30.6°C | 23.7°C | 42.1°C | 20.4°C | 67 mm | 59% | 0.9 m/s | 5.8 |
| 2006 | 34.7°C | 28.8°C | 22.8°C | 39.0°C | 18.7°C | 119 mm | 70% | 0.8 m/s | 5.5 |
| 2005 | 32.0°C | 27.2°C | 22.4°C | 37.7°C | 19.2°C | 136 mm | 79% | 0.8 m/s | 5.6 |
| 2004 | 32.9°C | 26.7°C | 20.5°C | 38.1°C | 15.6°C | 86 mm | 67% | 0.9 m/s | 5.6 |
| 2003 | 30.9°C | 26.4°C | 21.9°C | 33.6°C | 20.4°C | 99 mm | 83% | 0.7 m/s | 5.2 |
| 2002 | 34.8°C | 28.1°C | 21.4°C | 39.5°C | 16.7°C | 82 mm | 62% | 1 m/s | 5.6 |
| 2001 | 34.3°C | 27.9°C | 21.5°C | 37.6°C | 18.4°C | 47 mm | 65% | 0.9 m/s | 5.7 |
| 2000 | 33.7°C | 27.1°C | 20.6°C | 39.7°C | 16.2°C | 119 mm | 65% | 0.9 m/s | 5.6 |
| 1999 | 36.6°C | 29.4°C | 22.2°C | 42.2°C | 14.4°C | 72 mm | 57% | 0.9 m/s | 6 |
| 1998 | 34.6°C | 27.8°C | 21.0°C | 39.2°C | 15.8°C | 82 mm | 61% | 0.9 m/s | 6 |
| 1997 | 32.5°C | 26.4°C | 20.2°C | 36.7°C | 14.4°C | 41 mm | 68% | 0.9 m/s | 6.1 |
| 1996 | 32.2°C | 26.6°C | 20.9°C | 34.9°C | 18.5°C | 116 mm | 71% | 0.8 m/s | 5.2 |
| 1995 | 33.3°C | 27.9°C | 22.5°C | 40.3°C | 19.4°C | 199 mm | 72% | 1.2 m/s | 5.1 |
| 1994 ❄️ | 29.8°C | 25.0°C | 20.2°C | 33.8°C | 16.8°C | 161 mm | 79% | 0.9 m/s | 5.6 |
| 1993 | 35.4°C | 28.8°C | 22.1°C | 39.0°C | 18.7°C | 54 mm | 62% | 1 m/s | 5.6 |
| 1992 | 30.4°C | 25.5°C | 20.6°C | 36.9°C | 14.7°C | 191 mm | 77% | 0.9 m/s | 5 |
| 1991 | 29.7°C | 25.3°C | 20.8°C | 34.2°C | 15.5°C | 175 mm | 83% | 0.8 m/s | 5.2 |
| 1990 | 34.8°C | 28.5°C | 22.2°C | 38.5°C | 18.6°C | 118 mm | 65% | 0.8 m/s | 5.5 |
| 1989 | 31.1°C | 26.0°C | 21.0°C | 35.3°C | 16.3°C | 79 mm | 77% | 0.8 m/s | 5.4 |
| 1988 | 33.7°C | 27.9°C | 22.1°C | 38.8°C | 18.0°C | 118 mm | 69% | 0.9 m/s | 5 |
| 1987 | 35.0°C | 28.9°C | 22.8°C | 39.3°C | 19.9°C | 78 mm | 66% | 0.9 m/s | 5.6 |
| 1986 | 31.9°C | 26.6°C | 21.3°C | 40.0°C | 13.1°C | 191 mm | 71% | 1 m/s | 4.9 |
| 1985 | 31.2°C | 25.8°C | 20.4°C | 35.6°C | 16.0°C | 100 mm | 75% | 1 m/s | 5 |
| 1984 | 30.7°C | 25.8°C | 20.9°C | 33.2°C | 17.8°C | 78 mm | 78% | 0.8 m/s | 5.2 |
| 1983 | 35.5°C | 28.8°C | 22.1°C | 41.1°C | 15.5°C | 79 mm | 62% | 0.8 m/s | — |
| 1982 | 32.6°C | 26.8°C | 21.0°C | 37.2°C | 18.1°C | 69 mm | 71% | 0.9 m/s | — |
| 1981 | 31.9°C | 26.1°C | 20.3°C | 37.5°C | 16.5°C | 119 mm | 72% | 1 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 33.1°C with lows near 21.6°C (mean 27.4°C), based on 45 years of NASA POWER data.
August averages 114 mm of rainfall in Grovetown, a relatively wet time of year. The wettest on record was 231 mm in 2025.
The hottest August reached 42.2°C in 1999. The coldest dipped to 13.1°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.6°C. Daytime highs moved from 32.4°C to 32.7°C and overnight lows from 20.9°C to 21.8°C over the same span.
August is one of the warmer months of the year in Grovetown and a relatively wet time of year, so plan for around 33.1°C daytime highs and 21.6°C at night.
Not quite — August is the 11th coolest month in Grovetown, averaging 27.4°C.
For August in Grovetown, pack light, breathable clothing and sun protection, with typical highs of 33.1°C and lows of 21.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 71% — moderately humid.
Average wind speed in August is 0.9 m/s. The windiest August on record averaged 1.2 m/s (1995).
The wettest August on record was 2025 with 231 mm. On average, August sees 114 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 Grovetown 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.
