Hayward weather in August: Hayward, California: normal highs, lows, rain and records for August
Hayward in August has a normal high of 76°F and a normal low of 58°F, a daily mean of 67°F, rising from 75°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 0 days in a normal August, 0.10 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 25°C and low of 15°C, 3 mm of precipitation in August.
- NOAA stationHayward Air Terminal
- Station IDUSW00093228
- Location37.65°N 122.11°W
- Elevation43 ft (13 m)
- From the center2 miles
- Population158,440
- Jan 59° 43°
- Feb 62° 45°
- Mar 64° 47°
- Apr 67° 50°
- May 69° 52°
- Jun 74° 55°
- Jul 75° 57°
- Aug 76° 58°
- Sep 77° 58°
- Oct 74° 54°
- Nov 65° 47°
- Dec 59° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Hayward in August?
The normal high is 76°F and the normal low 58°F, for a daily mean of 67.3°F. August is 1.2°F warmer than July and 0.0°F cooler than September. August is the warmest month of the year in Hayward and the 10th wettest. Across the month the normal high rises 3°F, from 75°F on August 1 to 78°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 66°F and 69°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 | 75°F | 58°F | 1% | 0% |
| August 8 | 76°F | 58°F | 1% | 0% |
| August 15 | 76°F | 58°F | 1% | 0% |
| August 22 | 77°F | 58°F | 1% | 0% |
| August 31 | 78°F | 58°F | 2% | 1% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 30, coldest night August 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 75°F | 58°F | 1% | 0% | 14 h 10 min |
| August 2 | 75°F | 58°F | 1% | 0% | 14 h 10 min |
| August 3 | 75°F | 58°F | 1% | 0% | 14 h |
| August 4 | 75°F | 58°F | 1% | 0% | 14 h |
| August 5 | 75°F | 58°F | 1% | 0% | 14 h |
| August 6 | 75°F | 58°F | 1% | 0% | 14 h |
| August 7 | 76°F | 58°F | 1% | 0% | 14 h |
| August 8 | 76°F | 58°F | 1% | 0% | 13 h 50 min |
| August 9 | 76°F | 58°F | 1% | 0% | 13 h 50 min |
| August 10 | 76°F | 58°F | 1% | 0% | 13 h 50 min |
| August 11 | 76°F | 58°F | 1% | 0% | 13 h 50 min |
| August 12 | 76°F | 58°F | 1% | 0% | 13 h 50 min |
| August 13 | 76°F | 58°F | 1% | 0% | 13 h 40 min |
| August 14 | 76°F | 58°F | 1% | 0% | 13 h 40 min |
| August 15 | 76°F | 58°F | 1% | 0% | 13 h 40 min |
| August 16 | 77°F | 58°F | 1% | 0% | 13 h 40 min |
| August 17 | 77°F | 58°F | 1% | 0% | 13 h 40 min |
| August 18 | 77°F | 58°F | 1% | 0% | 13 h 30 min |
| August 19 | 77°F | 58°F | 1% | 0% | 13 h 30 min |
| August 20 | 77°F | 58°F | 1% | 0% | 13 h 30 min |
| August 21 | 77°F | 58°F | 1% | 0% | 13 h 30 min |
| August 22 | 77°F | 58°F | 1% | 0% | 13 h 20 min |
| August 23 | 77°F | 58°F | 1% | 0% | 13 h 20 min |
| August 24 | 77°F | 58°F | 1% | 0% | 13 h 20 min |
| August 25 | 77°F | 58°F | 1% | 0% | 13 h 20 min |
| August 26 | 77°F | 58°F | 1% | 0% | 13 h 20 min |
| August 27 | 77°F | 58°F | 1% | 0% | 13 h 10 min |
| August 28 | 78°F | 58°F | 1% | 0% | 13 h 10 min |
| August 29 | 78°F | 58°F | 1% | 1% | 13 h 10 min |
| August 30 | 78°F | 58°F | 1% | 1% | 13 h 10 min |
| August 31 | 78°F | 58°F | 2% | 1% | 13 h |
- Normal high
- 76°FAugust average
- Normal low
- 58°FAugust average
- Precipitation
- 0.10 inmonth total
- Days with precipitation
- fewer than 10.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 14 h 10 min to 13 hAugust 1 to August 31
- Days at 70°F or more
- 26
- Days at 80°F or more
- 6
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093228; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Hayward in August?
On a given August day the chance of 0.01 inch or more is 1% on average, highest around August 31 (2%). In all, 0.10 in falls on 0 days of a normal August.
In a normal August in Hayward, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093228.
What are the records for August in Hayward?
The warmest August temperature on this station's record (since 1998) is 103°F, on August 14, 2020; the coldest is 53°F, on August 11, 2012. The wettest August brought 0.18 in (1999).
The August mean against the 1991-2020 normal of 67.3°F: 2021 67.3°F (at normal), 2022 68.8°F (+1.5), 2023 70.4°F (+3.1), 2024 68.7°F (+1.4), 2025 67.1°F (−0.2), 2026 66.6°F (−0.7). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.3°F | at normal | 0.00 in |
| 2022 | 68.8°F | +1.5°F | 0.00 in |
| 2023 | 70.4°F | +3.1°F | 0.03 in |
| 2024 | 68.7°F | +1.4°F | 0.02 in |
| 2025 | 67.1°F | −0.2°F | 0.00 in |
| 2026 | 66.6°F | −0.7°F | 0.00 in |
Source: records: ACIS, station USW00093228; recent months: ACIS, station USW00093228. Records and recent months use complete months only.
How does August in Hayward 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; Hayward's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.