Monterey weather in August: Monterey, California: normal highs, lows, rain and records for August
Monterey in August has a normal high of 70°F and a normal low of 55°F, a daily mean of 63°F, rising from 69°F on the 1st to 71°F by the 31st. Measurable precipitation falls on 2 days in a normal August, 0.02 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 13°C, 1 mm of precipitation in August.
- NOAA stationMonterey Peninsul Airport
- Station IDUSW00023259
- Location36.59°N 121.85°W
- Elevation165 ft (50 m)
- From the center2 miles
- Population29,015
- Jan 62° 43°
- Feb 62° 45°
- Mar 63° 46°
- Apr 63° 47°
- May 65° 50°
- Jun 68° 52°
- Jul 69° 54°
- Aug 70° 55°
- Sep 71° 54°
- Oct 70° 51°
- Nov 65° 46°
- Dec 62° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Monterey in August?
The normal high is 70°F and the normal low 55°F, for a daily mean of 62.5°F. August is 0.9°F warmer than July and 0.1°F warmer than September. August is the warmest month of the year in Monterey and the 11th wettest. Across the month the normal high rises 2°F, from 69°F on August 1 to 71°F on August 31. From one year to the next August's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 61°F and 64°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 6%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 69°F | 55°F | 6% | 0% |
| August 8 | 70°F | 55°F | 6% | 0% |
| August 15 | 70°F | 55°F | 5% | – |
| August 22 | 70°F | 55°F | 4% | – |
| August 31 | 71°F | 55°F | 4% | – |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 30, coldest night August 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 69°F | 55°F | 6% | 0% | 14 h |
| August 2 | 69°F | 55°F | 6% | 0% | 14 h |
| August 3 | 69°F | 55°F | 6% | 0% | 14 h |
| August 4 | 69°F | 55°F | 6% | 0% | 14 h |
| August 5 | 69°F | 55°F | 6% | 0% | 14 h |
| August 6 | 69°F | 55°F | 6% | 0% | 13 h 50 min |
| August 7 | 70°F | 55°F | 6% | 0% | 13 h 50 min |
| August 8 | 70°F | 55°F | 6% | 0% | 13 h 50 min |
| August 9 | 70°F | 55°F | 6% | 0% | 13 h 50 min |
| August 10 | 70°F | 55°F | 6% | 0% | 13 h 50 min |
| August 11 | 70°F | 55°F | 5% | 0% | 13 h 40 min |
| August 12 | 70°F | 55°F | 5% | – | 13 h 40 min |
| August 13 | 70°F | 55°F | 5% | – | 13 h 40 min |
| August 14 | 70°F | 55°F | 5% | – | 13 h 40 min |
| August 15 | 70°F | 55°F | 5% | – | 13 h 40 min |
| August 16 | 70°F | 55°F | 5% | – | 13 h 30 min |
| August 17 | 70°F | 55°F | 5% | – | 13 h 30 min |
| August 18 | 70°F | 55°F | 5% | – | 13 h 30 min |
| August 19 | 70°F | 55°F | 5% | – | 13 h 30 min |
| August 20 | 70°F | 55°F | 5% | – | 13 h 30 min |
| August 21 | 70°F | 55°F | 5% | – | 13 h 20 min |
| August 22 | 70°F | 55°F | 4% | – | 13 h 20 min |
| August 23 | 70°F | 55°F | 4% | – | 13 h 20 min |
| August 24 | 71°F | 55°F | 4% | – | 13 h 20 min |
| August 25 | 71°F | 55°F | 4% | – | 13 h 20 min |
| August 26 | 71°F | 55°F | 4% | – | 13 h 10 min |
| August 27 | 71°F | 55°F | 4% | – | 13 h 10 min |
| August 28 | 71°F | 55°F | 4% | – | 13 h 10 min |
| August 29 | 71°F | 55°F | 4% | – | 13 h 10 min |
| August 30 | 71°F | 55°F | 4% | – | 13 h |
| August 31 | 71°F | 55°F | 4% | – | 13 h |
- Normal high
- 70°FAugust average
- Normal low
- 55°FAugust average
- Precipitation
- 0.02 inmonth total
- Days with precipitation
- 20.01 inch or more
- Daylight
- 14 h to 13 hAugust 1 to August 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 1
- Sunshine
- 90%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023259; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Monterey in August?
On a given August day the chance of 0.01 inch or more is 5% on average, highest around August 4 (6%). In all, 0.02 in falls on 2 days of a normal August.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023259.
What are the records for August in Monterey?
The warmest August temperature on this station's record (since 1968) is 92°F, on August 28, 2009; the coldest is 46°F, on August 27, 2009. The wettest August brought 0.82 in (1976).
The August mean against the 1991-2020 normal of 62.5°F: 2021 65.5°F (+3.0), 2022 64.3°F (+1.8), 2023 64.2°F (+1.7), 2024 61.5°F (−1.0), 2025 62.9°F (+0.4), 2026 62.3°F (−0.2). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.5°F | +3.0°F | 0.00 in |
| 2022 | 64.3°F | +1.8°F | 0.06 in |
| 2023 | 64.2°F | +1.7°F | 0.01 in |
| 2024 | 61.5°F | −1.0°F | 0.01 in |
| 2025 | 62.9°F | +0.4°F | 0.00 in |
| 2026 | 62.3°F | −0.2°F | 0.00 in |
Source: records: ACIS, station USW00023259; recent months: ACIS, station USW00023259. Records and recent months use complete months only.
How does August in Monterey 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; Monterey's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.