San Bruno, Sunday, 9 August, 03:05
Partly cloudy. Feels like 56°. High 86°, low 56°.
In August, San Bruno, CA averages a high of 69.5° and a low of 56°. About 0.1 inches of precipitation fall over the month (0 wet days). The record high is 91.6° (1968) and the record low 50.4° (1973). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 69.6° | 55.6° | 0% | 87.4° (1993) | 52° (2018) |
| 2 | 69.3° | 55.4° | 0% | 82.6° (1993) | 51.1° (2011) |
| 3 | 69.1° | 55.8° | 0% | 83.8° (1998) | 51.3° (1960) |
| 4 | 68° | 55.6° | 0% | 81.9° (1998) | 53.2° (2008) |
| 5 | 68.4° | 55.6° | 0% | 79.9° (1961) | 52.7° (2010) |
| 6 | 69.6° | 55.6° | 0% | 84.7° (1983) | 52.3° (1968) |
| 7 | 69.4° | 55.8° | 0% | 82.8° (1984) | 50.5° (1975) |
| 8 | 70.3° | 55.9° | 2% | 81.1° (2002) | 52.3° (1970) |
| 9 | 70.2° | 55.9° | 0% | 84.2° (2002) | 51.4° (2018) |
| 10 | 69.8° | 56.1° | 0% | 79.9° (2002) | 50.9° (1960) |
| 11 | 68.7° | 55.9° | 0% | 75.7° (1991) | 52.9° (1967) |
| 12 | 68.7° | 55.6° | 0% | 81.5° (1998) | 51.6° (1967) |
| 13 | 69.3° | 55.8° | 2% | 85.1° (1991) | 52.7° (1994) |
| 14 | 69.4° | 55.8° | 3% | 86.5° (2020) | 52.2° (1963) |
| 15 | 69.4° | 55.8° | 2% | 83.7° (2015) | 52.5° (1981) |
| 16 | 69.8° | 55.8° | 0% | 84.6° (2015) | 52° (1981) |
| 17 | 69.3° | 56.1° | 2% | 81° (1960) | 53.1° (2010) |
| 18 | 68.7° | 55.9° | 3% | 77.7° (1960) | 52.3° (1973) |
| 19 | 68.2° | 55.9° | 7% | 84.6° (1964) | 50.4° (1973) |
| 20 | 68.9° | 55.9° | 3% | 81.1° (1964) | 51.8° (1973) |
| 21 | 69.1° | 56.1° | 2% | 77.2° (1974) | 52.2° (1973) |
| 22 | 69.1° | 56.1° | 0% | 78.8° (1999) | 51.4° (1970) |
| 23 | 69.8° | 55.9° | 2% | 82.2° (2010) | 51.8° (1970) |
| 24 | 70° | 56.1° | 0% | 86.9° (2010) | 52° (1966) |
| 25 | 69.6° | 56.3° | 0% | 79.9° (2010) | 52.2° (2000) |
| 26 | 69.8° | 55.8° | 0% | 79° (1993) | 50.9° (2005) |
| 27 | 70.7° | 56.1° | 0% | 85.3° (1962) | 52.5° (1966) |
| 28 | 71.4° | 56.3° | 0% | 86° (2009) | 51.6° (1960) |
| 29 | 70.3° | 56.7° | 0% | 91.6° (1968) | 52.5° (2012) |
| 30 | 69.8° | 56.8° | 2% | 81.3° (1968) | 52.5° (2012) |
| 31 | 70.2° | 56.5° | 0% | 78.4° (2005) | 52.2° (1960) |