August is one of the warmer months of the year in Spring Valley, with average highs near 28.1°C and lows around 17.9°C (mean 23°C). It is about average for rainfall, averaging 107 mm of rainfall and 73% relative humidity across the period.
August is one of the warmer months of the year in Spring Valley. Across 45 years of records, the warmest August in Spring Valley was 2022 — when the month averaged 26°C — while the coldest was 1986 at 20.8°C. Typical August days reach 28.1°C with nights near 17.9°C. The long-term trend is warming, about 0.4°C per decade.
August is about average for rainfall in Spring Valley, averaging 107 mm of rainfall. The wettest August on record was 2011 with 382 mm, while the driest was 1995 at 33 mm.
Relative humidity in Spring Valley during August averages 73%. The most humid August was 2003 at 83%, and the least humid was 1995 at 60%.
August receives about 5.1 kWh/m²/day of solar energy in Spring Valley. The sunniest Augusts were 2015 and 2016 at 5.7 kWh/m²/day, and the cloudiest was 2021 at 4.6.
Average wind speed in Spring Valley during August is 1.2 m/s. The windiest Augusts were 1988, 1995 and 1999 at 1.4 m/s, while the calmest was 1996 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.1°C | 22.7°C | 23.4°C | 23.3°C | 23.9°C | +1.8°C |
| Avg High | 27.4°C | 28.1°C | 28.4°C | 28.3°C | 28.9°C | +1.5°C |
| Avg Low | 16.8°C | 17.3°C | 18.5°C | 18.4°C | 19.0°C | +2.2°C |
| Avg Rain | 89 mm | 108 mm | 105 mm | 125 mm | 105 mm | +17 mm |
August temperatures in Spring Valley have risen by about 1.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 7.3°C (1982) to a record high of 38.7°C (2001).
Rainfall in August is about average for rainfall, averaging 107 mm, with a wettest year of 382 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.6°C per decade, narrowing the gap between day and night.
One of the best times to visit Spring Valley
August is one of the best times to visit Spring Valley. Expect days averaging 28.1°C and nights around 17.9°C (mean 23°C) — warmer than Spring Valley's yearly average — with higher rainfall (107 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 | 28.8°C | 23.0°C | 17.3°C | 34.2°C | 11.9°C | 40 mm | 64% | 1.3 m/s | 5.5 |
| 2024 | 28.0°C | 23.1°C | 18.3°C | 34.2°C | 11.8°C | 176 mm | 78% | 1.3 m/s | 4.7 |
| 2023 | 27.3°C | 22.7°C | 18.2°C | 30.1°C | 13.6°C | 127 mm | 77% | 1.3 m/s | 4.8 |
| 2022 🔥 | 31.3°C | 26.0°C | 20.7°C | 36.4°C | 16.3°C | 42 mm | 65% | 1.3 m/s | 5.6 |
| 2021 | 28.6°C | 24.3°C | 20.1°C | 34.7°C | 15.0°C | 150 mm | 79% | 1.2 m/s | 4.6 |
| 2020 | 29.1°C | 24.3°C | 19.4°C | 33.5°C | 14.2°C | 97 mm | 73% | 1.3 m/s | 5.4 |
| 2019 | 27.9°C | 23.2°C | 18.6°C | 32.1°C | 12.6°C | 107 mm | 77% | 1.1 m/s | 5.4 |
| 2018 | 28.2°C | 24.2°C | 20.2°C | 32.8°C | 14.8°C | 162 mm | 83% | 1.2 m/s | 4.8 |
| 2017 | 26.9°C | 22.1°C | 17.4°C | 31.7°C | 12.7°C | 99 mm | 75% | 1.2 m/s | 5.2 |
| 2016 | 30.0°C | 25.0°C | 19.9°C | 33.3°C | 13.2°C | 73 mm | 71% | 1.2 m/s | 5.7 |
| 2015 | 30.1°C | 24.4°C | 18.7°C | 33.6°C | 15.0°C | 61 mm | 65% | 1.2 m/s | 5.7 |
| 2014 | 27.8°C | 22.4°C | 17.0°C | 32.5°C | 13.6°C | 74 mm | 69% | 1.1 m/s | 5.2 |
| 2013 | 26.5°C | 21.9°C | 17.2°C | 31.0°C | 12.0°C | 105 mm | 76% | 1.2 m/s | 5 |
| 2012 | 28.6°C | 23.6°C | 18.7°C | 32.8°C | 13.5°C | 93 mm | 73% | 1.1 m/s | 5.4 |
| 2011 🌧️ | 27.1°C | 22.5°C | 17.9°C | 31.3°C | 11.9°C | 382 mm | 79% | 1.3 m/s | 4.9 |
| 2010 | 29.4°C | 24.1°C | 18.7°C | 34.5°C | 13.5°C | 91 mm | 68% | 1.3 m/s | 4.8 |
| 2009 | 27.6°C | 23.3°C | 19.1°C | 33.4°C | 13.5°C | 118 mm | 80% | 1.1 m/s | 5.1 |
| 2008 | 27.7°C | 22.2°C | 16.7°C | 30.6°C | 12.2°C | 84 mm | 70% | 1.1 m/s | 5.5 |
| 2007 | 28.1°C | 23.1°C | 18.0°C | 34.5°C | 12.9°C | 119 mm | 75% | 1.2 m/s | 5 |
| 2006 | 28.3°C | 23.4°C | 18.4°C | 35.1°C | 12.7°C | 122 mm | 71% | 1.3 m/s | 5.3 |
| 2005 | 31.2°C | 25.9°C | 20.5°C | 36.8°C | 15.3°C | 46 mm | 66% | 1.2 m/s | 4.8 |
| 2004 | 26.5°C | 22.1°C | 17.7°C | 30.9°C | 11.7°C | 135 mm | 81% | 1.2 m/s | 4.7 |
| 2003 | 27.2°C | 23.0°C | 18.8°C | 30.1°C | 12.1°C | 130 mm | 83% | 1.2 m/s | 4.8 |
| 2002 | 30.6°C | 24.8°C | 19.0°C | 36.3°C | 14.9°C | 109 mm | 64% | 1.3 m/s | 5.4 |
| 2001 | 30.8°C | 25.2°C | 19.5°C | 38.7°C | 15.7°C | 83 mm | 66% | 1.2 m/s | 4.9 |
| 2000 | 25.9°C | 21.4°C | 16.9°C | 30.1°C | 10.1°C | 102 mm | 79% | 1.2 m/s | 4.7 |
| 1999 | 29.0°C | 23.5°C | 18.1°C | 36.2°C | 13.2°C | 105 mm | 64% | 1.4 m/s | 5 |
| 1998 | 29.4°C | 23.8°C | 18.2°C | 32.7°C | 11.7°C | 65 mm | 68% | 1.2 m/s | 5.2 |
| 1997 | 27.2°C | 22.0°C | 16.8°C | 32.3°C | 13.1°C | 124 mm | 71% | 1.2 m/s | 4.9 |
| 1996 | 27.2°C | 22.1°C | 17.1°C | 31.5°C | 14.4°C | 51 mm | 77% | 1 m/s | 5.4 |
| 1995 | 30.5°C | 24.1°C | 17.6°C | 35.2°C | 12.6°C | 33 mm | 60% | 1.4 m/s | 5.6 |
| 1994 | 26.3°C | 21.2°C | 16.1°C | 30.9°C | 10.6°C | 153 mm | 77% | 1.3 m/s | 4.8 |
| 1993 | 29.3°C | 23.7°C | 18.2°C | 34.7°C | 14.0°C | 75 mm | 69% | 1.1 m/s | 5.1 |
| 1992 | 26.2°C | 21.0°C | 15.8°C | 30.6°C | 10.3°C | 114 mm | 75% | 1.3 m/s | 5.3 |
| 1991 | 29.0°C | 23.5°C | 18.1°C | 33.4°C | 14.5°C | 145 mm | 70% | 1.3 m/s | 5 |
| 1990 | 26.5°C | 22.0°C | 17.4°C | 31.6°C | 13.2°C | 219 mm | 80% | 1.2 m/s | 4.7 |
| 1989 | 25.8°C | 21.5°C | 17.2°C | 30.2°C | 10.7°C | 129 mm | 80% | 1.2 m/s | 4.8 |
| 1988 | 29.4°C | 24.0°C | 18.7°C | 34.8°C | 11.0°C | 79 mm | 69% | 1.4 m/s | 5.1 |
| 1987 | 27.4°C | 21.9°C | 16.4°C | 32.7°C | 10.6°C | 129 mm | 70% | 1.3 m/s | 4.8 |
| 1986 ❄️ | 25.6°C | 20.8°C | 15.9°C | 30.7°C | 7.4°C | 112 mm | 76% | 1.3 m/s | 5.3 |
| 1985 | 27.7°C | 22.4°C | 17.0°C | 33.9°C | 13.2°C | 88 mm | 69% | 1.2 m/s | 4.8 |
| 1984 | 26.3°C | 21.7°C | 17.1°C | 29.0°C | 10.2°C | 49 mm | 83% | 1.1 m/s | 5.6 |
| 1983 | 29.1°C | 23.3°C | 17.4°C | 34.0°C | 11.2°C | 92 mm | 70% | 1.2 m/s | — |
| 1982 | 26.6°C | 20.9°C | 15.2°C | 30.8°C | 7.3°C | 84 mm | 68% | 1.3 m/s | — |
| 1981 | 28.7°C | 22.5°C | 16.4°C | 31.8°C | 11.0°C | 36 mm | 64% | 1.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 28.1°C with lows near 17.9°C (mean 23°C), based on 45 years of NASA POWER data.
August averages 107 mm of rainfall in Spring Valley, about average for rainfall. The wettest on record was 382 mm in 2011.
The hottest August reached 38.7°C in 2001. The coldest dipped to 7.3°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.6°C. Daytime highs moved from 27.7°C to 28.8°C and overnight lows from 16.6°C to 18.9°C over the same span.
August is one of the warmer months of the year in Spring Valley and about average for rainfall, so plan for around 28.1°C daytime highs and 17.9°C at night.
Not quite — August is the 11th coolest month in Spring Valley, averaging 23°C.
For August in Spring Valley, pack light layers you can adjust through the day, with typical highs of 28.1°C and lows of 17.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 73% — moderately humid.
Average wind speed in August is 1.2 m/s. The windiest August on record averaged 1.4 m/s (1988).
The wettest August on record was 2011 with 382 mm. On average, August sees 107 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 Spring Valley 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.
