As of 15:18 PDT

South San Francisco, CA weather in August

70°

South San Francisco, Sunday, 9 August, 15:18

Partly cloudy. Feels like 70°. High 78°, low 60°.

Pressure29.83 inHg

Wind6 mph W

Humidity70%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

In August, South San Francisco, CA averages a high of 70.6° and a low of 57°. About 0.1 inches of precipitation fall over the month (0 wet days). The record high is 92.8° (1968) and the record low 51.3° (2024). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	70.7°	56.7°	0%	88.7° (1993)	52° (2018)
2	70.3°	56.5°	0%	83.8° (1993)	52° (2018)
3	70.2°	56.8°	0%	85.1° (1998)	52° (2018)
4	69.1°	56.7°	0%	83.1° (1998)	53.4° (2021)
5	69.4°	56.7°	0%	81.1° (1961)	53.2° (2018)
6	70.7°	56.7°	0%	86° (1983)	52.7° (2018)
7	70.5°	56.8°	0%	84° (1984)	51.8° (1975)
8	71.4°	57°	2%	82.4° (2002)	52.9° (2018)
9	71.2°	57°	0%	85.5° (2002)	51.4° (2018)
10	70.9°	57.2°	0%	81.1° (2002)	52.2° (1960)
11	69.8°	57°	0%	77° (1991)	53.4° (2024)
12	69.8°	56.7°	0%	82.8° (1998)	52.9° (1967)
13	70.3°	56.8°	0%	86.4° (1991)	54° (1994)
14	70.5°	56.8°	2%	86.5° (2020)	53.4° (1963)
15	70.5°	56.8°	2%	84.9° (2015)	53.6° (2024)
16	70.9°	56.8°	0%	85.8° (2015)	53.2° (1981)
17	70.3°	57.2°	3%	82.2° (1960)	54° (2018)
18	69.8°	57°	3%	79° (1960)	53.6° (1973)
19	69.3°	57°	5%	85.8° (1964)	51.3° (2024)
20	70°	57°	3%	82.4° (1964)	53.1° (1973)
21	70.2°	57.2°	2%	78.4° (1974)	53.4° (1973)
22	70.2°	57.2°	3%	80.1° (1999)	52.7° (1970)
23	70.9°	57°	2%	83.5° (2010)	53.1° (1970)
24	71.1°	57.2°	0%	88.2° (2010)	53.2° (1966)
25	70.7°	57.4°	0%	81.1° (2010)	53.4° (2000)
26	70.9°	56.8°	0%	80.2° (1993)	52.2° (2005)
27	71.8°	57.2°	0%	86.5° (1962)	53.8° (1966)
28	72.5°	57.4°	0%	87.3° (2009)	52.9° (1960)
29	71.4°	57.7°	0%	92.8° (1968)	53.8° (2012)
30	70.9°	57.9°	3%	82.6° (1968)	53.8° (2012)
31	71.2°	57.6°	0%	79.7° (2005)	53.4° (1960)