August is one of the warmer months of the year in Yuma, with average highs near 41.4°C and lows around 26.6°C (mean 34°C). It is about average for rainfall, averaging 17 mm of rainfall and 35% relative humidity across the period.
August is one of the warmer months of the year in Yuma. Across 45 years of records, the warmest August in Yuma was 2020 — when the month averaged 36.2°C — while the coldest was 1989 at 31.2°C. Typical August days reach 41.4°C with nights near 26.6°C. The long-term trend is warming, about 0.5°C per decade.
August is about average for rainfall in Yuma, averaging 17 mm of rainfall. The wettest August on record was 1983 with 87 mm, while the driest was 2020 at 0 mm.
Relative humidity in Yuma during August averages 35%. The most humid August was 1983 at 48%, and the least humid was 1985 at 25%.
August receives about 7.1 kWh/m²/day of solar energy in Yuma. The sunniest Augusts were 1996 and 2006 at 7.5 kWh/m²/day, and the cloudiest were 2003 and 2022 at 6.6.
Average wind speed in Yuma during August is 2.5 m/s. The windiest August was 1996 at 2.9 m/s, while the calmest was 1983 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.1°C | 33.8°C | 33.8°C | 34.6°C | 35.2°C | +2.1°C |
| Avg High | 40.3°C | 41.2°C | 41.2°C | 42.0°C | 42.7°C | +2.4°C |
| Avg Low | 26.0°C | 26.6°C | 26.3°C | 27.1°C | 27.7°C | +1.7°C |
| Avg Rain | 28 mm | 16 mm | 17 mm | 10 mm | 15 mm | -13 mm |
August temperatures in Yuma have risen by about 1.5°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 17.1°C (1992) to a record high of 49.3°C (2021).
Rainfall in August is about average for rainfall, averaging 17 mm, with a wettest year of 87 mm.
A quieter season to visit Yuma
If your dates are flexible, the more temperate months of April and October tend to be the most comfortable for visiting Yuma. That said, August — with days averaging 41.4°C and nights around 26.6°C (mean 34°C) and low rainfall (17 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 43.4°C | 35.3°C | 27.2°C | 48.1°C | 23.8°C | 20 mm | 29% | 2.4 m/s | 7.1 |
| 2024 | 43.1°C | 35.4°C | 27.7°C | 47.1°C | 22.3°C | 3 mm | 29% | 2.8 m/s | 7.1 |
| 2023 | 42.4°C | 34.8°C | 27.3°C | 48.1°C | 21.9°C | 19 mm | 32% | 2.7 m/s | 6.9 |
| 2022 | 41.2°C | 34.8°C | 28.4°C | 45.9°C | 26.1°C | 29 mm | 40% | 2.1 m/s | 6.6 |
| 2021 | 41.7°C | 34.6°C | 27.4°C | 49.3°C | 21.3°C | 18 mm | 36% | 2.6 m/s | 7 |
| 2020 🔥 | 44.5°C | 36.2°C | 28.0°C | 47.5°C | 21.0°C | 0 mm | 29% | 2.6 m/s | 7.1 |
| 2019 | 43.7°C | 35.4°C | 27.2°C | 47.3°C | 23.8°C | 1 mm | 28% | 2.3 m/s | 7.4 |
| 2018 | 41.9°C | 34.9°C | 27.8°C | 47.0°C | 23.2°C | 7 mm | 36% | 2.8 m/s | 7.1 |
| 2017 | 42.5°C | 34.9°C | 27.3°C | 46.1°C | 20.3°C | 9 mm | 30% | 2.3 m/s | 7.4 |
| 2016 | 41.9°C | 34.6°C | 27.4°C | 46.4°C | 24.0°C | 5 mm | 33% | 2.7 m/s | 7.3 |
| 2015 | 43.3°C | 35.6°C | 28.0°C | 47.9°C | 24.8°C | 3 mm | 31% | 2.5 m/s | 7.2 |
| 2014 | 39.7°C | 32.8°C | 25.8°C | 44.6°C | 21.3°C | 28 mm | 38% | 2.2 m/s | 7 |
| 2013 | 40.6°C | 33.3°C | 26.1°C | 45.7°C | 20.2°C | 16 mm | 34% | 2.4 m/s | 6.9 |
| 2012 | 41.3°C | 34.5°C | 27.6°C | 47.3°C | 25.0°C | 21 mm | 40% | 2.4 m/s | 6.7 |
| 2011 | 44.0°C | 35.9°C | 27.7°C | 47.0°C | 23.6°C | 4 mm | 27% | 2.3 m/s | 7.4 |
| 2010 | 41.3°C | 33.6°C | 26.0°C | 47.0°C | 17.5°C | 10 mm | 30% | 2.6 m/s | 7.3 |
| 2009 | 42.1°C | 33.9°C | 25.7°C | 46.9°C | 20.7°C | 7 mm | 29% | 2.3 m/s | 7.4 |
| 2008 | 40.6°C | 33.6°C | 26.7°C | 46.1°C | 23.5°C | 27 mm | 40% | 2.5 m/s | 6.9 |
| 2007 | 42.2°C | 34.8°C | 27.3°C | 46.5°C | 22.4°C | 6 mm | 35% | 2.5 m/s | 7.1 |
| 2006 | 41.1°C | 33.6°C | 26.1°C | 44.9°C | 22.8°C | 21 mm | 35% | 2.3 m/s | 7.5 |
| 2005 | 39.8°C | 33.2°C | 26.6°C | 46.8°C | 23.1°C | 34 mm | 43% | 2.4 m/s | 7 |
| 2004 | 41.6°C | 33.5°C | 25.4°C | 46.2°C | 19.8°C | 4 mm | 32% | 2.7 m/s | 7.4 |
| 2003 | 40.3°C | 33.7°C | 27.0°C | 47.1°C | 23.2°C | 25 mm | 39% | 2.5 m/s | 6.6 |
| 2002 | 42.5°C | 33.9°C | 25.3°C | 46.4°C | 21.7°C | 1 mm | 30% | 2.6 m/s | 7.4 |
| 2001 | 41.1°C | 33.6°C | 26.1°C | 46.4°C | 19.7°C | 26 mm | 38% | 2.5 m/s | 7 |
| 2000 | 40.5°C | 33.7°C | 26.8°C | 47.2°C | 19.6°C | 22 mm | 38% | 2.7 m/s | 7 |
| 1999 | 41.2°C | 33.4°C | 25.6°C | 45.3°C | 19.3°C | 20 mm | 31% | 2.2 m/s | 7.2 |
| 1998 | 43.2°C | 35.9°C | 28.5°C | 48.0°C | 24.6°C | 11 mm | 33% | 2.5 m/s | 7.1 |
| 1997 | 40.9°C | 34.0°C | 27.0°C | 45.6°C | 23.5°C | 12 mm | 38% | 2.8 m/s | 7.2 |
| 1996 | 42.1°C | 34.5°C | 27.0°C | 45.5°C | 19.8°C | 16 mm | 36% | 2.9 m/s | 7.5 |
| 1995 | 43.1°C | 35.9°C | 28.7°C | 47.3°C | 24.0°C | 6 mm | 33% | 2.5 m/s | 6.9 |
| 1994 | 42.2°C | 35.1°C | 28.0°C | 46.4°C | 25.3°C | 12 mm | 35% | 2.5 m/s | 6.9 |
| 1993 | 39.6°C | 32.3°C | 25.0°C | 46.2°C | 18.7°C | 19 mm | 37% | 2.6 m/s | 7.1 |
| 1992 | 39.3°C | 32.7°C | 26.2°C | 46.1°C | 17.1°C | 28 mm | 43% | 2.6 m/s | 6.8 |
| 1991 | 40.6°C | 32.8°C | 25.0°C | 44.3°C | 19.0°C | 12 mm | 32% | 2.4 m/s | 7 |
| 1990 | 39.4°C | 31.9°C | 24.5°C | 44.2°C | 18.8°C | 22 mm | 38% | 2.5 m/s | 7.4 |
| 1989 ❄️ | 38.9°C | 31.2°C | 23.5°C | 42.2°C | 17.3°C | 23 mm | 40% | 2.3 m/s | 7.4 |
| 1988 | 39.8°C | 32.5°C | 25.2°C | 44.9°C | 19.9°C | 40 mm | 38% | 2.1 m/s | 7 |
| 1987 | 39.9°C | 32.5°C | 25.2°C | 44.6°C | 18.6°C | 12 mm | 33% | 2.4 m/s | 7.3 |
| 1986 | 41.5°C | 34.6°C | 27.6°C | 45.5°C | 23.5°C | 12 mm | 34% | 2.4 m/s | 6.9 |
| 1985 | 42.8°C | 34.4°C | 26.0°C | 47.9°C | 20.2°C | 3 mm | 25% | 2.5 m/s | 7.4 |
| 1984 | 39.1°C | 32.6°C | 26.2°C | 46.1°C | 23.3°C | 38 mm | 44% | 2.1 m/s | 6.9 |
| 1983 🌧️ | 38.2°C | 31.9°C | 25.6°C | 44.1°C | 19.8°C | 87 mm | 48% | 1.9 m/s | — |
| 1982 | 39.6°C | 33.3°C | 26.9°C | 45.7°C | 24.1°C | 27 mm | 36% | 2.1 m/s | — |
| 1981 | 42.7°C | 35.1°C | 27.5°C | 47.4°C | 21.4°C | 15 mm | 31% | 2.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 41.4°C with lows near 26.6°C (mean 34°C), based on 45 years of NASA POWER data.
August averages 17 mm of rainfall in Yuma, about average for rainfall. The wettest on record was 87 mm in 1983.
The hottest August reached 49.3°C in 2021. The coldest dipped to 17.1°C in 1992.
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 40.5°C to 42.4°C and overnight lows from 26.4°C to 27.6°C over the same span.
August is one of the warmer months of the year in Yuma and about average for rainfall, so plan for around 41.4°C daytime highs and 26.6°C at night.
Not quite — August is the 11th coolest month in Yuma, averaging 34°C.
For August in Yuma, pack light, breathable clothing and sun protection, with typical highs of 41.4°C and lows of 26.6°C.
Relative humidity in August averages 35% — relatively dry.
Average wind speed in August is 2.5 m/s. The windiest August on record averaged 2.9 m/s (1996).
The wettest August on record was 1983 with 87 mm. On average, August sees 17 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 Yuma 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.
