August is one of the warmer months of the year in Hot Springs National Park, with average highs near 35°C and lows around 21.5°C (mean 28.3°C). It is one of the drier months, averaging 86 mm of rainfall and 66% relative humidity across the period.
August is one of the warmer months of the year in Hot Springs National Park. Across 45 years of records, the warmest August in Hot Springs National Park was 2000 — when the month averaged 31.3°C — while the coldest was 2009 at 25.1°C. Typical August days reach 35°C with nights near 21.5°C. The long-term August temperature trend is broadly flat.
August is one of the drier months in Hot Springs National Park, averaging 86 mm of rainfall. The wettest August on record was 2020 with 219 mm, while the driest was 2000 at 9 mm.
Relative humidity in Hot Springs National Park during August averages 66%. The most humid August was 2009 at 80%, and the least humid was 2000 at 46%.
August receives about 5.8 kWh/m²/day of solar energy in Hot Springs National Park. The sunniest August was 2000 at 6.6 kWh/m²/day, and the cloudiest was 2017 at 4.9.
Average wind speed in Hot Springs National Park during August is 0.2 m/s. The windiest Augusts were 2023, 2024 and 2025, among others at 0.2 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.0°C | 28.0°C | 28.3°C | 28.3°C | 28.7°C | +0.7°C |
| Avg High | 34.8°C | 35.0°C | 35.0°C | 34.8°C | 35.4°C | +0.6°C |
| Avg Low | 21.2°C | 21.0°C | 21.7°C | 21.9°C | 21.9°C | +0.7°C |
| Avg Rain | 82 mm | 72 mm | 77 mm | 112 mm | 87 mm | +6 mm |
August temperatures in Hot Springs National Park have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 10.1°C (1986) to a record high of 45.4°C (2011).
Rainfall in August is one of the drier months, averaging 86 mm, with a wettest year of 219 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Hot Springs National Park
August is a good time to visit Hot Springs National Park, with days averaging 35°C and nights around 21.5°C (mean 28.3°C, warmer than Hot Springs National Park'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 | 35.2°C | 28.2°C | 21.2°C | 40.9°C | 15.8°C | 103 mm | 64% | 0.2 m/s | 5.6 |
| 2024 | 36.5°C | 29.1°C | 21.6°C | 40.0°C | 15.4°C | 33 mm | 59% | 0.2 m/s | 6 |
| 2023 | 38.0°C | 30.4°C | 22.9°C | 42.6°C | 16.7°C | 52 mm | 62% | 0.2 m/s | 6.2 |
| 2022 | 34.7°C | 28.5°C | 22.2°C | 40.6°C | 18.1°C | 64 mm | 69% | 0.2 m/s | 5.5 |
| 2021 | 34.8°C | 28.8°C | 22.7°C | 39.6°C | 19.5°C | 53 mm | 70% | 0.2 m/s | 5.9 |
| 2020 🌧️ | 33.4°C | 27.0°C | 20.6°C | 37.5°C | 17.2°C | 219 mm | 72% | 0.2 m/s | 5.9 |
| 2019 | 35.6°C | 29.1°C | 22.7°C | 41.6°C | 18.6°C | 102 mm | 72% | 0.2 m/s | 5.5 |
| 2018 | 33.4°C | 27.4°C | 21.3°C | 37.3°C | 17.5°C | 162 mm | 73% | 0.2 m/s | 5.6 |
| 2017 | 31.6°C | 26.3°C | 21.0°C | 38.5°C | 17.0°C | 141 mm | 77% | 0.2 m/s | 4.9 |
| 2016 | 32.6°C | 27.6°C | 22.6°C | 39.5°C | 18.3°C | 192 mm | 79% | 0.2 m/s | 5 |
| 2015 | 35.3°C | 27.8°C | 20.4°C | 41.7°C | 14.4°C | 56 mm | 62% | 0.2 m/s | 6 |
| 2014 | 34.2°C | 27.6°C | 21.1°C | 38.8°C | 15.8°C | 68 mm | 69% | 0.2 m/s | 6.1 |
| 2013 | 34.8°C | 27.9°C | 21.1°C | 39.4°C | 14.7°C | 65 mm | 68% | 0.2 m/s | 6.1 |
| 2012 | 35.4°C | 28.5°C | 21.5°C | 40.6°C | 16.7°C | 130 mm | 60% | 0.2 m/s | 5.8 |
| 2011 | 37.8°C | 30.6°C | 23.4°C | 45.4°C | 18.1°C | 138 mm | 64% | 0.2 m/s | 5.8 |
| 2010 | 37.5°C | 30.4°C | 23.4°C | 42.5°C | 14.5°C | 70 mm | 64% | 0.2 m/s | 6.1 |
| 2009 ❄️ | 30.7°C | 25.1°C | 19.6°C | 34.0°C | 13.8°C | 90 mm | 80% | 0.2 m/s | 6.1 |
| 2008 | 31.8°C | 26.4°C | 21.0°C | 41.2°C | 17.3°C | 210 mm | 75% | 0.2 m/s | 5 |
| 2007 | 36.8°C | 30.1°C | 23.3°C | 41.6°C | 19.3°C | 17 mm | 63% | 0.2 m/s | 6.1 |
| 2006 | 35.8°C | 29.2°C | 22.7°C | 40.4°C | 16.6°C | 88 mm | 66% | 0.2 m/s | 5.9 |
| 2005 | 36.4°C | 29.5°C | 22.6°C | 39.0°C | 19.0°C | 62 mm | 62% | 0.2 m/s | 5.9 |
| 2004 | 33.1°C | 26.0°C | 19.0°C | 40.1°C | 12.4°C | 71 mm | 68% | 0.2 m/s | 5.9 |
| 2003 | 35.7°C | 28.9°C | 22.2°C | 40.2°C | 18.0°C | 77 mm | 66% | 0.2 m/s | 5.6 |
| 2002 | 34.9°C | 28.3°C | 21.6°C | 38.8°C | 17.7°C | 61 mm | 66% | 0.2 m/s | 5.7 |
| 2001 | 35.0°C | 28.4°C | 21.7°C | 38.4°C | 16.5°C | 89 mm | 66% | 0.2 m/s | 5.7 |
| 2000 🔥 | 39.4°C | 31.3°C | 23.2°C | 43.5°C | 19.6°C | 9 mm | 46% | 0.2 m/s | 6.6 |
| 1999 | 37.7°C | 29.3°C | 20.9°C | 41.1°C | 15.1°C | 38 mm | 50% | 0.2 m/s | 6.5 |
| 1998 | 36.3°C | 29.2°C | 22.1°C | 40.8°C | 19.2°C | 81 mm | 62% | 0.2 m/s | 5.7 |
| 1997 | 34.3°C | 27.4°C | 20.5°C | 38.2°C | 15.4°C | 61 mm | 64% | 0.2 m/s | 5.5 |
| 1996 | 32.4°C | 26.5°C | 20.6°C | 36.5°C | 17.5°C | 77 mm | 71% | 0.2 m/s | 5.5 |
| 1995 | 37.9°C | 30.6°C | 23.3°C | 41.1°C | 17.1°C | 28 mm | 58% | 0.2 m/s | 6.1 |
| 1994 | 33.1°C | 26.3°C | 19.5°C | 36.4°C | 14.0°C | 118 mm | 70% | 0.2 m/s | 6 |
| 1993 | 36.5°C | 29.7°C | 22.9°C | 41.3°C | 18.7°C | 113 mm | 67% | 0.2 m/s | 5.7 |
| 1992 | 32.1°C | 25.3°C | 18.5°C | 35.9°C | 12.8°C | 55 mm | 69% | 0.2 m/s | 5.6 |
| 1991 | 33.8°C | 27.2°C | 20.5°C | 38.8°C | 14.6°C | 99 mm | 68% | 0.2 m/s | 5.5 |
| 1990 | 35.6°C | 28.5°C | 21.4°C | 41.3°C | 15.3°C | 48 mm | 62% | 0.2 m/s | 5.7 |
| 1989 | 32.7°C | 26.7°C | 20.6°C | 36.9°C | 14.0°C | 39 mm | 73% | 0.2 m/s | 5.9 |
| 1988 | 35.8°C | 28.9°C | 22.0°C | 39.5°C | 12.7°C | 73 mm | 64% | 0.2 m/s | 5.4 |
| 1987 | 37.4°C | 30.2°C | 23.1°C | 41.7°C | 16.9°C | 61 mm | 59% | 0.2 m/s | 5.5 |
| 1986 | 33.5°C | 26.5°C | 19.5°C | 37.1°C | 10.1°C | 131 mm | 64% | 0.2 m/s | 5.6 |
| 1985 | 35.9°C | 28.4°C | 20.9°C | 41.3°C | 15.1°C | 73 mm | 63% | 0.2 m/s | 5.9 |
| 1984 | 32.7°C | 26.5°C | 20.2°C | 39.1°C | 15.3°C | 140 mm | 74% | 0.2 m/s | 5.2 |
| 1983 | 36.6°C | 29.6°C | 22.5°C | 39.8°C | 18.9°C | 49 mm | 62% | 0.2 m/s | — |
| 1982 | 35.6°C | 28.7°C | 21.7°C | 38.8°C | 18.7°C | 83 mm | 68% | 0.2 m/s | — |
| 1981 | 33.4°C | 26.8°C | 20.2°C | 37.4°C | 15.8°C | 85 mm | 68% | 0.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 35°C with lows near 21.5°C (mean 28.3°C), based on 45 years of NASA POWER data.
August averages 86 mm of rainfall in Hot Springs National Park, one of the drier months. The wettest on record was 219 mm in 2020.
The hottest August reached 45.4°C in 2011. The coldest dipped to 10.1°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1°C. Daytime highs moved from 34.8°C to 35.8°C and overnight lows from 21.1°C to 22.1°C over the same span.
August is one of the warmer months of the year in Hot Springs National Park and one of the drier months, so plan for around 35°C daytime highs and 21.5°C at night.
Not quite — August is the 11th coolest month in Hot Springs National Park, averaging 28.3°C.
For August in Hot Springs National Park, pack light, breathable clothing and sun protection, with typical highs of 35°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 66% — moderately humid.
Average wind speed in August is 0.2 m/s. The windiest August on record averaged 0.2 m/s (1981).
The wettest August on record was 2020 with 219 mm. On average, August sees 86 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 Hot Springs National Park 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.
