July is one of the warmer months of the year in Santa Ana, with average highs near 22.4°C and lows around 18.1°C (mean 20.3°C). It is one of the drier months, averaging 1 mm of rainfall and 76% relative humidity across the period.
July is one of the warmer months of the year in Santa Ana. Across 45 years of records, the warmest July in Santa Ana was 2006 — when the month averaged 22.8°C — while the coldest was 2010 at 17.8°C. Typical July days reach 22.4°C with nights near 18.1°C. The long-term trend is cooling, about 0.2°C per decade.
July is one of the drier months in Santa Ana, averaging 1 mm of rainfall. The wettest July on record was 2015 with 17 mm, while the driest were 2009, 2020 and 2023, among others at 0 mm.
Relative humidity in Santa Ana during July averages 76%. The most humid July was 2005 at 80%, and the least humid was 1981 at 66%.
July receives about 7.3 kWh/m²/day of solar energy in Santa Ana. The sunniest July was 2016 at 8 kWh/m²/day, and the cloudiest was 1988 at 6.1.
Average wind speed in Santa Ana during July is 2.3 m/s. The windiest Julys were 1987, 1999 and 2000 at 2.5 m/s, while the calmest were 2019 and 2023 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.9°C | 20.1°C | 20.2°C | 20.0°C | 19.9°C | -1°C |
| Avg High | 23.3°C | 22.1°C | 22.3°C | 22.1°C | 21.9°C | -1.4°C |
| Avg Low | 18.4°C | 17.9°C | 18.2°C | 17.9°C | 17.9°C | -0.5°C |
| Avg Rain | 1 mm | 1 mm | 1 mm | 3 mm | 1 mm | 0 mm |
July temperatures in Santa Ana have fallen by about 1.5°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 14.1°C (2010) to a record high of 31.3°C (2018).
Rainfall in July is one of the drier months, averaging 1 mm, with a wettest year of 17 mm.
One of the best times to visit Santa Ana
July is one of the best times to visit Santa Ana. Expect days averaging 22.4°C and nights around 18.1°C (mean 20.3°C) — warmer than Santa Ana'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 | 21.1°C | 19.1°C | 17.1°C | 23.1°C | 15.4°C | 0 mm | 79% | 2.4 m/s | 7.7 |
| 2024 | 22.1°C | 20.1°C | 18.1°C | 24.1°C | 16.4°C | 0 mm | 77% | 2.3 m/s | 7.5 |
| 2023 | 22.3°C | 20.2°C | 18.0°C | 26.4°C | 15.0°C | 0 mm | 78% | 2 m/s | 7.4 |
| 2022 | 21.7°C | 19.7°C | 17.7°C | 24.9°C | 15.9°C | 1 mm | 77% | 2.3 m/s | 7.6 |
| 2021 | 22.3°C | 20.3°C | 18.3°C | 26.0°C | 16.0°C | 2 mm | 74% | 2.3 m/s | 7.4 |
| 2020 | 22.1°C | 20.0°C | 18.0°C | 26.4°C | 16.2°C | 0 mm | 76% | 2.4 m/s | 7.9 |
| 2019 | 21.9°C | 19.7°C | 17.6°C | 27.4°C | 15.5°C | 1 mm | 77% | 2 m/s | 7.6 |
| 2018 | 24.1°C | 21.8°C | 19.5°C | 31.3°C | 15.8°C | 0 mm | 74% | 2.3 m/s | 7.4 |
| 2017 | 22.8°C | 20.6°C | 18.4°C | 25.7°C | 14.5°C | 1 mm | 76% | 2.2 m/s | 7.4 |
| 2016 | 22.9°C | 20.8°C | 18.6°C | 27.1°C | 15.8°C | 0 mm | 73% | 2.3 m/s | 8 |
| 2015 🌧️ | 22.7°C | 20.7°C | 18.7°C | 26.2°C | 16.4°C | 17 mm | 79% | 2.3 m/s | 7 |
| 2014 | 23.2°C | 21.1°C | 19.0°C | 25.6°C | 16.6°C | 1 mm | 76% | 2.4 m/s | 7.4 |
| 2013 | 21.7°C | 19.7°C | 17.8°C | 24.0°C | 15.1°C | 1 mm | 77% | 2.4 m/s | 6.5 |
| 2012 | 20.6°C | 18.4°C | 16.2°C | 25.5°C | 14.2°C | 3 mm | 76% | 2.2 m/s | 7.3 |
| 2011 | 21.2°C | 19.3°C | 17.3°C | 24.8°C | 15.2°C | 1 mm | 77% | 2.3 m/s | 7.6 |
| 2010 ❄️ | 19.7°C | 17.8°C | 15.9°C | 24.7°C | 14.1°C | 0 mm | 80% | 2.2 m/s | 6.8 |
| 2009 | 22.5°C | 20.3°C | 18.2°C | 26.2°C | 14.6°C | 0 mm | 76% | 2.2 m/s | 7.9 |
| 2008 | 21.8°C | 19.8°C | 17.8°C | 23.9°C | 16.3°C | 0 mm | 79% | 2.1 m/s | 7.3 |
| 2007 | 22.0°C | 20.0°C | 18.0°C | 24.6°C | 16.5°C | 0 mm | 78% | 2.1 m/s | 7.4 |
| 2006 🔥 | 25.0°C | 22.8°C | 20.6°C | 28.5°C | 17.4°C | 2 mm | 76% | 2.3 m/s | 7.3 |
| 2005 | 22.1°C | 20.0°C | 17.8°C | 25.3°C | 15.2°C | 1 mm | 80% | 2.1 m/s | 7.3 |
| 2004 | 22.3°C | 20.1°C | 18.0°C | 25.3°C | 16.4°C | 0 mm | 77% | 2.3 m/s | 7.6 |
| 2003 | 22.5°C | 20.5°C | 18.4°C | 24.6°C | 16.1°C | 2 mm | 80% | 2.1 m/s | 6.9 |
| 2002 | 21.5°C | 19.5°C | 17.5°C | 24.1°C | 14.9°C | 0 mm | 79% | 2.3 m/s | 7.3 |
| 2001 | 21.4°C | 19.5°C | 17.5°C | 25.3°C | 16.0°C | 0 mm | 78% | 2.3 m/s | 7.5 |
| 2000 | 21.8°C | 19.8°C | 17.8°C | 25.1°C | 16.2°C | 0 mm | 76% | 2.5 m/s | 7.6 |
| 1999 | 21.6°C | 19.7°C | 17.7°C | 24.9°C | 15.0°C | 2 mm | 75% | 2.5 m/s | 7.5 |
| 1998 | 22.3°C | 20.4°C | 18.5°C | 25.1°C | 15.5°C | 1 mm | 78% | 2.1 m/s | 7.3 |
| 1997 | 22.0°C | 20.1°C | 18.1°C | 25.1°C | 16.3°C | 0 mm | 76% | 2.3 m/s | 7.4 |
| 1996 | 22.8°C | 20.6°C | 18.4°C | 25.5°C | 16.2°C | 1 mm | 76% | 2.3 m/s | 7.5 |
| 1995 | 22.0°C | 19.9°C | 17.7°C | 26.1°C | 15.9°C | 1 mm | 78% | 2.3 m/s | 7.3 |
| 1994 | 21.5°C | 19.4°C | 17.3°C | 23.9°C | 15.9°C | 0 mm | 78% | 2.3 m/s | 6.8 |
| 1993 | 21.8°C | 19.8°C | 17.8°C | 24.5°C | 16.9°C | 0 mm | 77% | 2.3 m/s | 6.4 |
| 1992 | 23.3°C | 21.0°C | 18.7°C | 28.7°C | 15.6°C | 5 mm | 78% | 2.3 m/s | 6.5 |
| 1991 | 20.5°C | 18.5°C | 16.5°C | 22.6°C | 15.3°C | 3 mm | 80% | 2.3 m/s | 6.5 |
| 1990 | 23.5°C | 21.1°C | 18.8°C | 26.1°C | 16.6°C | 0 mm | 73% | 2.2 m/s | 7.6 |
| 1989 | 23.4°C | 20.9°C | 18.4°C | 25.4°C | 16.3°C | 0 mm | 73% | 2.1 m/s | 7.5 |
| 1988 | 23.3°C | 20.8°C | 18.3°C | 25.6°C | 16.1°C | 0 mm | 75% | 2.1 m/s | 6.1 |
| 1987 | 21.3°C | 18.9°C | 16.5°C | 24.8°C | 15.3°C | 2 mm | 74% | 2.5 m/s | 6.8 |
| 1986 | 22.5°C | 20.1°C | 17.8°C | 24.3°C | 16.4°C | 2 mm | 71% | 2.4 m/s | 7.3 |
| 1985 | 24.6°C | 22.0°C | 19.4°C | 29.3°C | 17.7°C | 1 mm | 68% | 2.3 m/s | 6.9 |
| 1984 | 24.9°C | 22.6°C | 20.3°C | 28.2°C | 17.8°C | 2 mm | 68% | 2.4 m/s | 6.6 |
| 1983 | 23.1°C | 20.6°C | 18.1°C | 26.1°C | 17.0°C | 0 mm | 71% | 2.1 m/s | — |
| 1982 | 22.6°C | 20.1°C | 17.5°C | 24.6°C | 15.5°C | 0 mm | 71% | 2.1 m/s | — |
| 1981 | 24.3°C | 21.7°C | 19.1°C | 26.2°C | 16.4°C | 0 mm | 66% | 2.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 22.4°C with lows near 18.1°C (mean 20.3°C), based on 45 years of NASA POWER data.
July averages 1 mm of rainfall in Santa Ana, one of the drier months. The wettest on record was 17 mm in 2015.
The hottest July reached 31.3°C in 2018. The coldest dipped to 14.1°C in 2010.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have fallen by about 1.5°C. Daytime highs moved from 23.9°C to 21.9°C and overnight lows from 18.9°C to 17.8°C over the same span.
July is one of the warmer months of the year in Santa Ana and one of the drier months, so plan for around 22.4°C daytime highs and 18.1°C at night.
Not quite — July is the 10th coolest month in Santa Ana, averaging 20.3°C.
For July in Santa Ana, pack light layers you can adjust through the day, with typical highs of 22.4°C and lows of 18.1°C.
Relative humidity in July averages 76% — quite humid.
Average wind speed in July is 2.3 m/s. The windiest July on record averaged 2.5 m/s (1987).
The wettest July on record was 2015 with 17 mm. On average, July 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 Santa Ana behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
