Santa Ana weather in August: Santa Ana, California: normal highs, lows, rain and records for August

Santa Ana in August has a normal high of 80°F and a normal low of 67°F, a daily mean of 74°F, holding near 80°F all month. Measurable precipitation falls on 0 days in a normal August, 0.01 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 27°C and low of 19°C, 0 mm of precipitation in August.

  • NOAA stationSanta Ana John Wayne Airport
  • Station IDUSW00093184
  • Location33.68°N 117.87°W
  • Elevation54 ft (17 m)
  • From the center4 miles
  • Population316,184
  1. Jan 67° 49°
  2. Feb 67° 50°
  3. Mar 68° 52°
  4. Apr 70° 55°
  5. May 71° 59°
  6. Jun 74° 63°
  7. Jul 79° 66°
  8. Aug 80° 67°
  9. Sep 80° 65°
  10. Oct 77° 59°
  11. Nov 72° 53°
  12. Dec 67° 48°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Santa Ana in August?

The normal high is 80°F and the normal low 67°F, for a daily mean of 73.8°F. August is 1.3°F warmer than July and 1.3°F warmer than September. August is the warmest month of the year in Santa Ana and the 11th wettest. Across the month the normal high rises 1°F, from 80°F on August 1 to 81°F on August 31. From one year to the next August's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 72°F and 76°F.

Santa Ana in August, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 2%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 180°F67°F2%–
August 880°F67°F1%–
August 1580°F67°F1%–
August 2281°F67°F1%–
August 3181°F67°F1%–
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 30, coldest night August 30)
Santa Ana: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 180°F67°F2%–13 h 50 min
August 280°F67°F2%–13 h 50 min
August 380°F67°F2%–13 h 50 min
August 480°F67°F1%–13 h 50 min
August 580°F67°F1%–13 h 40 min
August 680°F67°F1%–13 h 40 min
August 780°F67°F1%–13 h 40 min
August 880°F67°F1%–13 h 40 min
August 980°F67°F1%–13 h 40 min
August 1080°F67°F1%–13 h 40 min
August 1180°F67°F1%–13 h 30 min
August 1280°F67°F1%–13 h 30 min
August 1380°F67°F1%–13 h 30 min
August 1480°F67°F1%–13 h 30 min
August 1580°F67°F1%–13 h 30 min
August 1680°F67°F1%–13 h 20 min
August 1781°F67°F1%–13 h 20 min
August 1881°F67°F1%–13 h 20 min
August 1981°F67°F1%–13 h 20 min
August 2081°F67°F1%–13 h 20 min
August 2181°F67°F1%–13 h 20 min
August 2281°F67°F1%–13 h 10 min
August 2381°F67°F1%–13 h 10 min
August 2481°F67°F1%–13 h 10 min
August 2581°F67°F1%–13 h 10 min
August 2681°F67°F1%–13 h 10 min
August 2781°F67°F1%–13 h
August 2881°F67°F1%–13 h
August 2981°F67°F1%–13 h
August 3081°F67°F1%–13 h
August 3181°F67°F1%–13 h
Normal high
80°FAugust average
Normal low
67°FAugust average
Precipitation
0.01 inmonth total
Days with precipitation
fewer than 10.01 inch or more
Days at 90°F or more
2
Daylight
13 h 50 min to 13 hAugust 1 to August 31
Days at 70°F or more
31
Days at 80°F or more
16
Sunshine
92%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00093184; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Santa Ana in August?

On a given August day the chance of 0.01 inch or more is 1% on average, highest around August 1 (2%). In all, 0.01 in falls on 0 days of a normal August.

In a normal August in Santa Ana, 2 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093184.

What are the records for August in Santa Ana?

The warmest August temperature on this station's record (since 1999) is 100°F, on August 18, 2020; the coldest is 58°F, on August 27, 2003. The wettest August brought 2.13 in (2023).

The August mean against the 1991-2020 normal of 73.8°F: 2021 75.2°F (+1.4), 2022 77.2°F (+3.4), 2023 74.8°F (+1.0), 2024 74.6°F (+0.8), 2025 73.8°F (at normal), 2026 77.4°F (+3.6). 5 of 6 ran warmer than normal.

Santa Ana: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202175.2°F+1.4°F0.03 in
202277.2°F+3.4°F0.00 in
202374.8°F+1.0°F2.13 in
202474.6°F+0.8°F0.00 in
202573.8°Fat normal0.00 in
202677.4°F+3.6°F0.00 in

Source: records: ACIS, station USW00093184; recent months: ACIS, station USW00093184. Records and recent months use complete months only.

How does August in Santa Ana compare across California?

Across the 219 places PlainClimate covers in California, August normal highs run from 63°F in Bodega to 109°F in Needles; Santa Ana's is 80°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places