Tustin weather in August: Tustin, California: normal highs, lows, rain and records for August
Tustin in August has a normal high of 87°F and a normal low of 63°F, a daily mean of 75°F, holding near 87°F all month. Measurable precipitation falls on 0 days in a normal August, 0.00 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 17°C, 0 mm of precipitation in August.
- NOAA stationTustin Irvine Ranch
- Station IDUSC00049087
- Location33.70°N 117.75°W
- Elevation235 ft (72 m)
- From the center4 miles
- Population78,863
- Jan 68° 43°
- Feb 69° 45°
- Mar 72° 48°
- Apr 74° 50°
- May 77° 55°
- Jun 80° 58°
- Jul 85° 61°
- Aug 87° 63°
- Sep 87° 61°
- Oct 84° 55°
- Nov 76° 47°
- Dec 70° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Tustin in August?
The normal high is 87°F and the normal low 63°F, for a daily mean of 75.2°F. August is 1.9°F warmer than July and 1.3°F warmer than September. August is the warmest month of the year in Tustin and the 12th wettest. From one year to the next August's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 73°F and 78°F.
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 1%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 87°F | 63°F | 0% | 0% |
| August 8 | 87°F | 63°F | 0% | 0% |
| August 15 | 87°F | 63°F | 0% | – |
| August 22 | 87°F | 63°F | 0% | – |
| August 31 | 87°F | 63°F | 1% | – |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 14, coldest night August 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 87°F | 63°F | 0% | 0% | 13 h 50 min |
| August 2 | 87°F | 63°F | 0% | 0% | 13 h 50 min |
| August 3 | 87°F | 63°F | 0% | 0% | 13 h 50 min |
| August 4 | 87°F | 63°F | 0% | 0% | 13 h 50 min |
| August 5 | 87°F | 63°F | 0% | 0% | 13 h 40 min |
| August 6 | 87°F | 63°F | 0% | 0% | 13 h 40 min |
| August 7 | 87°F | 63°F | 0% | 0% | 13 h 40 min |
| August 8 | 87°F | 63°F | 0% | 0% | 13 h 40 min |
| August 9 | 87°F | 63°F | 0% | – | 13 h 40 min |
| August 10 | 87°F | 63°F | 0% | – | 13 h 40 min |
| August 11 | 87°F | 63°F | 0% | – | 13 h 30 min |
| August 12 | 87°F | 63°F | 0% | – | 13 h 30 min |
| August 13 | 87°F | 63°F | 0% | – | 13 h 30 min |
| August 14 | 87°F | 63°F | 0% | – | 13 h 30 min |
| August 15 | 87°F | 63°F | 0% | – | 13 h 30 min |
| August 16 | 87°F | 63°F | 0% | – | 13 h 20 min |
| August 17 | 87°F | 63°F | 0% | – | 13 h 20 min |
| August 18 | 87°F | 63°F | 0% | – | 13 h 20 min |
| August 19 | 87°F | 63°F | 0% | – | 13 h 20 min |
| August 20 | 87°F | 63°F | 0% | – | 13 h 20 min |
| August 21 | 87°F | 63°F | 0% | – | 13 h 20 min |
| August 22 | 87°F | 63°F | 0% | – | 13 h 10 min |
| August 23 | 87°F | 63°F | 0% | – | 13 h 10 min |
| August 24 | 87°F | 63°F | 1% | – | 13 h 10 min |
| August 25 | 87°F | 63°F | 1% | – | 13 h 10 min |
| August 26 | 87°F | 63°F | 1% | – | 13 h 10 min |
| August 27 | 87°F | 63°F | 1% | – | 13 h |
| August 28 | 87°F | 63°F | 1% | – | 13 h |
| August 29 | 87°F | 63°F | 1% | – | 13 h |
| August 30 | 87°F | 63°F | 1% | – | 13 h |
| August 31 | 87°F | 63°F | 1% | – | 13 h |
- Normal high
- 87°FAugust average
- Normal low
- 63°FAugust average
- Precipitation
- 0.00 inmonth total
- Days with precipitation
- fewer than 10.01 inch or more
- Days at 90°F or more
- 11
- 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
- 29
- Sunshine
- 92%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00049087; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Tustin in August?
On a given August day the chance of 0.01 inch or more is 0% on average, highest around August 28 (1%). In all, 0.00 in falls on 0 days of a normal August.
In a normal August in Tustin, 11 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00049087.
What are the records for August in Tustin?
The warmest August temperature on this station's record (since 1915) is 110°F, on August 5, 1997; the coldest is 42°F, on August 30, 1917. The wettest August brought 2.10 in (1977).
Source: records: ACIS, station USC00049087. Records and recent months use complete months only.
How does August in Tustin 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; Tustin's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.