As of 04:54 PDT

Costa Mesa, CA weather in July

69°

Costa Mesa, Sunday, 9 August, 04:54

Mostly clear. Feels like 70°. High 97°, low 69°.

Pressure29.85 inHg

Wind3.2 mph SW

Humidity92%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

In July, Costa Mesa, CA averages a high of 77.6° and a low of 63.4°. About 0.0 inches of precipitation fall over the month (0 wet days). The record high is 98.2° (1985) and the record low 54.9° (2010). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	76.6°	61.9°	0%	98.2° (1985)	57.4° (1968)
2	76.5°	62.1°	2%	94.8° (1985)	56.8° (1963)
3	76.1°	61.7°	0%	91.2° (1985)	56.1° (1975)
4	76.1°	61.9°	0%	88° (1989)	56.7° (1961)
5	76.6°	61.9°	0%	89.1° (1989)	56.7° (1964)
6	76.6°	62.1°	2%	91.2° (2018)	56.8° (2010)
7	76.8°	62.4°	2%	86.9° (2018)	55.4° (2010)
8	77°	62.6°	0%	88.5° (1992)	54.9° (2010)
9	77.2°	62.8°	0%	86° (1985)	55.9° (2010)
10	77.5°	62.8°	0%	87.1° (1968)	57.2° (1965)
11	77.5°	63.3°	2%	86.4° (1983)	57.9° (1965)
12	77.7°	63.3°	2%	88.9° (1983)	56.1° (1965)
13	78.1°	63.7°	2%	89.4° (1983)	57.6° (1965)
14	77.9°	63.9°	0%	87.3° (1984)	57.6° (1962)
15	77.4°	63.7°	0%	89.1° (1984)	57.6° (1973)
16	77.9°	63.5°	0%	88.5° (1960)	57.4° (1962)
17	77.7°	63.5°	0%	86.9° (1960)	58.1° (2012)
18	77.9°	63.7°	2%	86.4° (1992)	57.9° (1975)
19	78.1°	64°	0%	85.6° (2000)	57.7° (1975)
20	78.1°	64°	2%	90.7° (1960)	57.2° (1991)
21	77.9°	63.7°	0%	87.1° (2016)	57° (1973)
22	77.9°	64°	2%	95.5° (2006)	58.3° (1965)
23	78.3°	64.2°	0%	87.6° (2006)	58.1° (1965)
24	77.9°	64.2°	0%	86.5° (2014)	59.4° (1965)
25	78.3°	64°	2%	85.3° (1984)	59.2° (2001)
26	78.6°	64.2°	2%	88.7° (1977)	58.5° (1965)
27	78.4°	64.2°	0%	89.4° (1972)	55.9° (2010)
28	78.3°	64°	0%	88.5° (1972)	56.1° (2010)
29	78.1°	64°	2%	91.4° (1980)	55.9° (2024)
30	78.1°	64.4°	2%	89.4° (1972)	58.6° (1962)
31	78.6°	64.4°	0%	88° (1972)	58.1° (2013)