August is one of the warmer months of the year in Sacramento, with average highs near 36°C and lows around 16°C (mean 26°C). It is one of the drier months, averaging 1 mm of rainfall and 40% relative humidity across the period.
August is one of the warmer months of the year in Sacramento. Across 45 years of records, the warmest August in Sacramento was 2020 — when the month averaged 28.1°C — while the coldest was 2010 at 24.1°C. Typical August days reach 36°C with nights near 16°C. The long-term trend is warming, about 0.2°C per decade.
August is one of the drier months in Sacramento, averaging 1 mm of rainfall. The wettest August on record was 2003 with 13 mm, while the driest were 2018, 2019 and 2021, among others at 0 mm.
Relative humidity in Sacramento during August averages 40%. The most humid August was 1991 at 46%, and the least humid was 1996 at 34%.
August receives about 7.3 kWh/m²/day of solar energy in Sacramento. The sunniest Augusts were 1995, 1998 and 2011 at 7.7 kWh/m²/day, and the cloudiest were 1984 and 2021 at 6.5.
Average wind speed in Sacramento during August is 2.2 m/s. The windiest Augusts were 2013, 2016 and 2024, among others at 2.5 m/s, while the calmest was 1998 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.7°C | 26.0°C | 25.9°C | 25.7°C | 27.1°C | +1.4°C |
| Avg High | 35.8°C | 36.0°C | 36.0°C | 35.6°C | 37.1°C | +1.3°C |
| Avg Low | 15.6°C | 16.1°C | 15.9°C | 15.7°C | 17.1°C | +1.5°C |
| Avg Rain | 2 mm | 2 mm | 2 mm | 0 mm | 2 mm | 0 mm |
August temperatures in Sacramento have risen by about 1.2°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 10.9°C (1989) to a record high of 46.8°C (1990).
Rainfall in August is one of the drier months, averaging 1 mm, with a wettest year of 13 mm.
One of the best times to visit Sacramento
August is one of the best times to visit Sacramento. Expect days averaging 36°C and nights around 16°C (mean 26°C) — warmer than Sacramento's yearly average — with low rainfall (1 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 | 37.4°C | 27.1°C | 16.7°C | 41.6°C | 13.7°C | 1 mm | 39% | 2.4 m/s | 7.4 |
| 2024 | 36.2°C | 26.3°C | 16.5°C | 42.4°C | 13.5°C | 3 mm | 39% | 2.5 m/s | 7.1 |
| 2023 | 36.8°C | 27.2°C | 17.6°C | 43.4°C | 13.7°C | 4 mm | 41% | 2.2 m/s | 7.1 |
| 2022 | 37.8°C | 27.5°C | 17.2°C | 42.9°C | 14.7°C | 1 mm | 37% | 2.4 m/s | 7.2 |
| 2021 | 36.3°C | 26.3°C | 16.3°C | 42.0°C | 12.1°C | 0 mm | 39% | 2.3 m/s | 6.5 |
| 2020 🔥 | 37.8°C | 28.1°C | 18.3°C | 44.4°C | 13.2°C | 1 mm | 38% | 2.2 m/s | 6.8 |
| 2019 | 36.6°C | 26.7°C | 16.7°C | 42.3°C | 13.8°C | 0 mm | 42% | 2.2 m/s | 7.4 |
| 2018 | 35.4°C | 25.2°C | 15.1°C | 41.1°C | 12.1°C | 0 mm | 41% | 2.2 m/s | 7.2 |
| 2017 | 36.5°C | 26.8°C | 17.2°C | 44.2°C | 12.7°C | 1 mm | 41% | 2.3 m/s | 7.1 |
| 2016 | 35.8°C | 25.4°C | 15.0°C | 40.7°C | 12.6°C | 0 mm | 40% | 2.5 m/s | 7.5 |
| 2015 | 35.1°C | 25.7°C | 16.3°C | 41.8°C | 13.9°C | 0 mm | 44% | 2.3 m/s | 7.2 |
| 2014 | 34.7°C | 25.6°C | 16.5°C | 43.4°C | 14.0°C | 1 mm | 46% | 2.3 m/s | 6.9 |
| 2013 | 34.9°C | 25.1°C | 15.3°C | 41.3°C | 12.3°C | 0 mm | 46% | 2.5 m/s | 7.4 |
| 2012 | 37.9°C | 26.9°C | 15.8°C | 44.1°C | 11.3°C | 0 mm | 37% | 2.5 m/s | 7.4 |
| 2011 | 35.5°C | 25.0°C | 14.6°C | 37.8°C | 12.5°C | 0 mm | 44% | 2.4 m/s | 7.7 |
| 2010 ❄️ | 34.0°C | 24.1°C | 14.1°C | 44.5°C | 11.1°C | 0 mm | 45% | 2.4 m/s | 7.6 |
| 2009 | 35.6°C | 25.7°C | 15.8°C | 42.1°C | 12.1°C | 0 mm | 42% | 2.3 m/s | 7.4 |
| 2008 | 36.9°C | 26.7°C | 16.5°C | 43.3°C | 12.7°C | 0 mm | 41% | 2.3 m/s | 7.5 |
| 2007 | 36.2°C | 26.1°C | 15.9°C | 42.0°C | 11.5°C | 1 mm | 43% | 2.3 m/s | 7.5 |
| 2006 | 34.9°C | 25.0°C | 15.1°C | 38.8°C | 12.5°C | 0 mm | 43% | 2.2 m/s | 7.6 |
| 2005 | 37.5°C | 27.1°C | 16.8°C | 42.7°C | 13.7°C | 0 mm | 38% | 2.2 m/s | 7.5 |
| 2004 | 36.0°C | 26.1°C | 16.2°C | 42.4°C | 12.7°C | 0 mm | 43% | 2.3 m/s | 7.4 |
| 2003 🌧️ | 35.2°C | 25.7°C | 16.2°C | 39.9°C | 13.3°C | 13 mm | 45% | 2.2 m/s | 7.3 |
| 2002 | 35.9°C | 25.5°C | 15.1°C | 42.7°C | 11.4°C | 0 mm | 39% | 2.2 m/s | 7.4 |
| 2001 | 36.2°C | 25.8°C | 15.5°C | 42.5°C | 12.6°C | 0 mm | 43% | 2.4 m/s | 7.6 |
| 2000 | 35.8°C | 25.7°C | 15.7°C | 42.7°C | 12.6°C | 2 mm | 40% | 2.2 m/s | 7.2 |
| 1999 | 34.3°C | 24.8°C | 15.3°C | 42.3°C | 12.5°C | 2 mm | 43% | 2.3 m/s | 7.2 |
| 1998 | 37.4°C | 27.2°C | 17.0°C | 45.5°C | 11.6°C | 1 mm | 38% | 1.9 m/s | 7.7 |
| 1997 | 35.6°C | 25.9°C | 16.3°C | 45.1°C | 14.0°C | 6 mm | 44% | 2.3 m/s | 7.2 |
| 1996 | 38.0°C | 27.4°C | 16.8°C | 44.0°C | 12.2°C | 4 mm | 34% | 2 m/s | 7.5 |
| 1995 | 35.7°C | 25.7°C | 15.7°C | 41.6°C | 11.9°C | 0 mm | 38% | 2 m/s | 7.7 |
| 1994 | 37.0°C | 26.1°C | 15.3°C | 42.0°C | 12.9°C | 0 mm | 36% | 2.2 m/s | 7.3 |
| 1993 | 34.9°C | 25.4°C | 15.9°C | 43.8°C | 12.3°C | 3 mm | 40% | 2.1 m/s | 7.3 |
| 1992 | 37.7°C | 27.3°C | 16.8°C | 43.1°C | 12.8°C | 1 mm | 36% | 2.2 m/s | 7.2 |
| 1991 | 34.1°C | 24.5°C | 15.0°C | 38.2°C | 12.0°C | 4 mm | 46% | 2.3 m/s | 7.3 |
| 1990 | 35.5°C | 26.0°C | 16.6°C | 46.8°C | 12.5°C | 1 mm | 42% | 2.2 m/s | 7.1 |
| 1989 | 34.4°C | 24.4°C | 14.4°C | 39.2°C | 10.9°C | 5 mm | 40% | 2 m/s | 7.2 |
| 1988 | 36.8°C | 26.6°C | 16.4°C | 42.2°C | 11.2°C | 0 mm | 38% | 2.2 m/s | 7.1 |
| 1987 | 36.4°C | 26.0°C | 15.6°C | 42.2°C | 11.8°C | 0 mm | 36% | 2 m/s | 7.2 |
| 1986 | 36.5°C | 25.9°C | 15.4°C | 39.5°C | 13.5°C | 0 mm | 36% | 2 m/s | 7.1 |
| 1985 | 34.8°C | 24.8°C | 14.8°C | 40.3°C | 12.4°C | 2 mm | 37% | 2.1 m/s | 6.9 |
| 1984 | 36.3°C | 26.3°C | 16.2°C | 42.3°C | 13.2°C | 3 mm | 37% | 2.3 m/s | 6.5 |
| 1983 | 34.6°C | 25.5°C | 16.3°C | 41.2°C | 13.0°C | 6 mm | 46% | 2.2 m/s | — |
| 1982 | 35.2°C | 25.5°C | 15.7°C | 41.5°C | 12.1°C | 1 mm | 39% | 2.1 m/s | — |
| 1981 | 37.5°C | 26.6°C | 15.6°C | 45.7°C | 12.6°C | 0 mm | 35% | 2.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 36°C with lows near 16°C (mean 26°C), based on 45 years of NASA POWER data.
August averages 1 mm of rainfall in Sacramento, one of the drier months. The wettest on record was 13 mm in 2003.
The hottest August reached 46.8°C in 1990. The coldest dipped to 10.9°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.2°C. Daytime highs moved from 35.7°C to 36.9°C and overnight lows from 15.7°C to 16.9°C over the same span.
August is one of the warmer months of the year in Sacramento and one of the drier months, so plan for around 36°C daytime highs and 16°C at night.
Not quite — August is the 11th coolest month in Sacramento, averaging 26°C.
For August in Sacramento, pack light, breathable clothing and sun protection, with typical highs of 36°C and lows of 16°C.
Relative humidity in August averages 40% — relatively dry.
Average wind speed in August is 2.2 m/s. The windiest August on record averaged 2.5 m/s (2012).
The wettest August on record was 2003 with 13 mm. On average, August sees 1 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 Sacramento 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.
