Santa Monica weather in August: Santa Monica, California: normal highs, lows, rain and records for August
Santa Monica in August has a normal high of 77°F and a normal low of 63°F, a daily mean of 70°F, holding near 77°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 25°C and low of 17°C, 0 mm of precipitation in August.
- NOAA stationSanta Monica Municipal Airport
- Station IDUSW00093197
- Location34.02°N 118.45°W
- Elevation174 ft (53 m)
- From the center3 miles
- Population90,729
- Jan 66° 49°
- Feb 66° 49°
- Mar 66° 51°
- Apr 68° 53°
- May 69° 57°
- Jun 71° 60°
- Jul 75° 63°
- Aug 77° 63°
- Sep 76° 62°
- Oct 74° 58°
- Nov 70° 52°
- Dec 66° 48°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Santa Monica in August?
The normal high is 77°F and the normal low 63°F, for a daily mean of 69.8°F. August is 0.8°F warmer than July and 0.6°F warmer than September. August is the warmest month of the year in Santa Monica and the 12th wettest. Across the month the normal high rises 1°F, from 76°F on August 1 to 77°F on August 31. From one year to the next August's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 68°F and 72°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 2%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 76°F | 63°F | 2% | 0% |
| August 8 | 76°F | 63°F | 1% | 0% |
| August 15 | 77°F | 63°F | 1% | – |
| August 22 | 77°F | 63°F | 1% | – |
| August 31 | 77°F | 63°F | 2% | – |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 23, coldest night August 17)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 76°F | 63°F | 2% | 0% | 13 h 50 min |
| August 2 | 76°F | 63°F | 2% | 0% | 13 h 50 min |
| August 3 | 76°F | 63°F | 2% | 0% | 13 h 50 min |
| August 4 | 76°F | 63°F | 2% | 0% | 13 h 50 min |
| August 5 | 76°F | 63°F | 1% | 0% | 13 h 50 min |
| August 6 | 76°F | 63°F | 1% | 0% | 13 h 40 min |
| August 7 | 76°F | 63°F | 1% | 0% | 13 h 40 min |
| August 8 | 76°F | 63°F | 1% | 0% | 13 h 40 min |
| August 9 | 76°F | 63°F | 1% | 0% | 13 h 40 min |
| August 10 | 76°F | 63°F | 1% | 0% | 13 h 40 min |
| August 11 | 76°F | 63°F | 1% | 0% | 13 h 30 min |
| August 12 | 76°F | 63°F | 1% | 0% | 13 h 30 min |
| August 13 | 76°F | 63°F | 1% | 0% | 13 h 30 min |
| August 14 | 77°F | 63°F | 1% | 0% | 13 h 30 min |
| August 15 | 77°F | 63°F | 1% | – | 13 h 30 min |
| August 16 | 77°F | 63°F | 1% | – | 13 h 30 min |
| August 17 | 77°F | 63°F | 1% | – | 13 h 20 min |
| August 18 | 77°F | 63°F | 1% | – | 13 h 20 min |
| August 19 | 77°F | 63°F | 1% | – | 13 h 20 min |
| August 20 | 77°F | 63°F | 1% | – | 13 h 20 min |
| August 21 | 77°F | 63°F | 1% | – | 13 h 20 min |
| August 22 | 77°F | 63°F | 1% | – | 13 h 10 min |
| August 23 | 77°F | 63°F | 1% | – | 13 h 10 min |
| August 24 | 77°F | 63°F | 1% | – | 13 h 10 min |
| August 25 | 77°F | 63°F | 1% | – | 13 h 10 min |
| August 26 | 77°F | 63°F | 2% | – | 13 h 10 min |
| August 27 | 77°F | 63°F | 2% | – | 13 h |
| August 28 | 77°F | 63°F | 2% | – | 13 h |
| August 29 | 77°F | 63°F | 2% | – | 13 h |
| August 30 | 77°F | 63°F | 2% | – | 13 h |
| August 31 | 77°F | 63°F | 2% | – | 13 h |
- Normal high
- 77°FAugust average
- Normal low
- 63°FAugust average
- Precipitation
- 0.01 inmonth total
- Days with precipitation
- fewer than 10.01 inch or more
- Daylight
- 13 h 50 min to 13 hAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 6
- Sunshine
- 97%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093197; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Santa Monica in August?
On a given August day the chance of 0.01 inch or more is 1% on average, highest around August 30 (2%). In all, 0.01 in falls on 0 days of a normal August.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093197.
What are the records for August in Santa Monica?
The warmest August temperature on this station's record (since 1998) is 93°F, on August 31, 2017; the coldest is 54°F, on August 30, 2010. The wettest August brought 3.58 in (2023).
The August mean against the 1991-2020 normal of 69.8°F: 2021 69.3°F (−0.5), 2022 71.2°F (+1.4), 2023 69.9°F (+0.1), 2024 70.9°F (+1.1), 2025 71.0°F (+1.3), 2026 74.4°F (+4.6). 5 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.3°F | −0.5°F | 0.02 in |
| 2022 | 71.2°F | +1.4°F | 0.00 in |
| 2023 | 69.9°F | +0.1°F | 3.58 in |
| 2024 | 70.9°F | +1.1°F | 0.00 in |
| 2025 | 71.0°F | +1.3°F | 0.00 in |
| 2026 | 74.4°F | +4.6°F | 0.00 in |
Source: records: ACIS, station USW00093197; recent months: ACIS, station USW00093197. Records and recent months use complete months only.
How does August in Santa Monica 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 Monica's is 77°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Santa Monica in July75°F by day, 63°F at night
- Santa Monica in September76°F by day, 62°F at night
- Santa Monica 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