Chula Vista weather in August: Chula Vista, California: normal highs, lows, rain and records for August
Chula Vista in August has a normal high of 77°F and a normal low of 66°F, a daily mean of 71°F, rising from 76°F on the 1st to 78°F by the 31st. 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 25°C and low of 19°C, 0 mm of precipitation in August.
- NOAA stationChula Vista
- Station IDUSC00041758
- Location32.64°N 117.09°W
- Elevation56 ft (17 m)
- From the center4 miles
- Population278,546
- Jan 68° 47°
- Feb 67° 48°
- Mar 67° 51°
- Apr 68° 54°
- May 69° 58°
- Jun 71° 61°
- Jul 75° 65°
- Aug 77° 66°
- Sep 77° 64°
- Oct 75° 59°
- Nov 71° 51°
- Dec 67° 46°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Chula Vista in August?
The normal high is 77°F and the normal low 66°F, for a daily mean of 71.3°F. August is 1.6°F warmer than July and 0.7°F warmer than September. August is the warmest month of the year in Chula Vista and the 12th wettest. Across the month the normal high rises 2°F, from 76°F on August 1 to 78°F on August 31. From one year to the next August's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 70°F and 73°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 | 76°F | 66°F | 1% | 0% |
| August 8 | 76°F | 66°F | 1% | 0% |
| August 15 | 77°F | 66°F | 1% | 0% |
| August 22 | 77°F | 66°F | 1% | 0% |
| August 31 | 78°F | 65°F | 1% | 0% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 29, coldest night August 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 76°F | 66°F | 1% | 0% | 13 h 50 min |
| August 2 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 3 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 4 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 5 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 6 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 7 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 8 | 76°F | 66°F | 1% | 0% | 13 h 40 min |
| August 9 | 76°F | 66°F | 1% | 0% | 13 h 30 min |
| August 10 | 77°F | 66°F | 1% | 0% | 13 h 30 min |
| August 11 | 77°F | 66°F | 1% | 0% | 13 h 30 min |
| August 12 | 77°F | 66°F | 1% | 0% | 13 h 30 min |
| August 13 | 77°F | 66°F | 1% | 0% | 13 h 30 min |
| August 14 | 77°F | 66°F | 1% | 0% | 13 h 30 min |
| August 15 | 77°F | 66°F | 1% | 0% | 13 h 20 min |
| August 16 | 77°F | 66°F | 1% | 0% | 13 h 20 min |
| August 17 | 77°F | 66°F | 1% | 0% | 13 h 20 min |
| August 18 | 77°F | 66°F | 1% | 0% | 13 h 20 min |
| August 19 | 77°F | 66°F | 1% | 0% | 13 h 20 min |
| August 20 | 77°F | 66°F | 1% | 0% | 13 h 10 min |
| August 21 | 77°F | 66°F | 1% | 0% | 13 h 10 min |
| August 22 | 77°F | 66°F | 1% | 0% | 13 h 10 min |
| August 23 | 77°F | 66°F | 1% | 0% | 13 h 10 min |
| August 24 | 78°F | 66°F | 1% | 0% | 13 h 10 min |
| August 25 | 78°F | 66°F | 1% | 0% | 13 h 10 min |
| August 26 | 78°F | 66°F | 1% | 0% | 13 h |
| August 27 | 78°F | 66°F | 1% | 0% | 13 h |
| August 28 | 78°F | 66°F | 1% | 0% | 13 h |
| August 29 | 78°F | 66°F | 1% | 0% | 13 h |
| August 30 | 78°F | 65°F | 1% | 0% | 13 h |
| August 31 | 78°F | 65°F | 1% | 0% | 12 h 50 min |
- Normal high
- 77°FAugust average
- Normal low
- 66°FAugust average
- Precipitation
- 0.01 inmonth total
- Days with precipitation
- fewer than 10.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 50 min to 12 h 50 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 9
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00041758; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Chula Vista in August?
On a given August day the chance of 0.01 inch or more is 1% on average, highest around August 31 (1%). In all, 0.01 in falls on 0 days of a normal August.
In a normal August in Chula Vista, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00041758.
What are the records for August in Chula Vista?
The warmest August temperature on this station's record (since 1918) is 96°F, on August 8, 1936; the coldest is 53°F, on August 26, 1928. The wettest August brought 2.00 in (1977).
The August mean against the 1991-2020 normal of 71.3°F: 2021 71.6°F (+0.3), 2022 73.2°F (+1.9), 2023 72.1°F (+0.8), 2024 71.3°F (at normal), 2025 73.4°F (+2.1). 4 of 5 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 71.6°F | +0.3°F | 0.00 in |
| 2022 | 73.2°F | +1.9°F | 0.00 in |
| 2023 | 72.1°F | +0.8°F | 1.45 in |
| 2024 | 71.3°F | at normal | 0.00 in |
| 2025 | 73.4°F | +2.1°F | 0.09 in |
Source: records: ACIS, station USC00041758; recent months: ACIS, station USC00041758. Records and recent months use complete months only.
How does August in Chula Vista 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; Chula Vista's is 77°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Chula Vista in July75°F by day, 65°F at night
- Chula Vista in September77°F by day, 64°F at night
- Chula Vista through the yearEvery month, frost dates, records and recent years
- California in AugustThe statewide normal and the warmest and coolest places
- Needles: California's warmest Augustnormal high 109°F