Average Temperatures for California Cities in August

Average daily high and low temperatures for August at dozens of cities throughout California are listed below in degrees Fahrenheit and Celsius.

You can jump to separate tables for cities in Southern California and Northern California.

The tables give the normal maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Northern California

August temperature averages
High °F	Low °F	Place	High °C	Low °C
90	60	Antioch	32	16
75	54	Berkeley	24	12
94	59	Chico	35	15
91	54	Clearlake	33	12
88	59	Concord	31	15
93	56	Davis	34	14
64	53	Eureka	18	12
89	58	Fairfield	32	14
78	57	Fremont	26	14
97	68	Fresno	36	20
87	57	Grass Valley	31	14
76	58	Hayward	25	15
89	57	Livermore	31	14
95	63	Madera	35	17
94	60	Merced	34	16
94	62	Modesto	34	17
84	56	Napa	29	13
77	58	Newark	25	15
73	58	Oakland	23	14

High °F	Low °F	Place	High °C	Low °C
81	53	Petaluma	27	12
97	67	Porterville	36	19
96	64	Red Bluff	36	18
98	64	Redding	37	18
81	57	Redwood City	27	14
72	56	Richmond	22	13
94	61	Sacramento	34	16
68	56	San Francisco	20	13
81	59	San Jose	27	15
81	56	San Rafael	27	13
83	53	Santa Rosa	28	11
92	56	Sonora	33	13
95	60	Stockton	35	15
93	62	Tracy	34	17
92	65	Turlock	33	18
91	54	Ukiah	33	12
97	60	Vacaville	36	15
86	56	Vallejo	30	13
72	55	Watsonville	22	13
94	57	Woodland	35	14
95	60	Yuba City	35	15

Southern California

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
89	66	Anaheim	32	19
97	70	Bakersfield	36	21
88	63	Burbank	31	17
77	66	Chula Vista	25	19
107	79	El Centro	42	26
89	65	Escondido	32	19
87	66	Fullerton	30	19
97	64	Hanford	36	18
90	62	Irvine	32	17
98	65	Lancaster	37	18
83	66	Long Beach	28	19
84	65	Los Angeles	29	19
71	66	Oceanside	22	19
95	65	Ontario	35	18
74	61	Oxnard	23	16
98	66	Palmdale	36	19
91	63	Pasadena	33	17
92	63	Pomona	34	17
95	65	Riverside	35	18
72	56	Salinas	22	13
77	68	San Diego	25	20
80	55	San Luis Obispo	27	13
85	65	Santa Ana	29	19
78	60	Santa Barbara	25	16
76	55	Santa Cruz	24	13
78	62	Torrance	26	17
97	63	Victorville	36	17
93	65	Visalia	34	18

Average August Temperatures at Cities in California

Northern California

Southern California

Reference

More California Weather Information