As of 23:25 PDT

Irvine, CA weather in September

80°

Irvine, Tuesday, 6 October, 23:25

Clear. Feels like 82°. High 101°, low 75°.

Pressure29.83 inHg

Wind5.7 mph SW

Humidity56%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

In September, Irvine, CA averages a high of 80.8° and a low of 64.2°. About 0.3 inches of precipitation fall over the month (1 wet days). The record high is 107.8° (2022) and the record low 52.7° (2024). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82.8°	65.8°	3%	97.7° (1998)	57.7° (1973)
2	83.1°	66.2°	5%	96.3° (1982)	60.3° (1966)
3	83.3°	66.2°	5%	100.2° (1988)	59.7° (1961)
4	84°	66.2°	2%	107.8° (2022)	58.5° (1999)
5	83.8°	66.2°	3%	99.9° (2024)	56.8° (1973)
6	83.8°	66.2°	3%	104.2° (2020)	58.6° (1970)
7	83.1°	66.2°	0%	99.5° (2024)	58.1° (1980)
8	82.6°	65.8°	0%	103.5° (2024)	57.4° (1980)
9	81.7°	65.7°	8%	96.8° (2024)	59.2° (1961)
10	80.6°	64.9°	5%	94.8° (1983)	57.7° (1975)
11	80.2°	64.2°	5%	96.3° (1983)	57.4° (1975)
12	79.7°	64°	0%	98.6° (1971)	56.7° (1972)
13	79°	63.9°	2%	99.5° (1971)	57.6° (2021)
14	79.7°	63.5°	2%	95.7° (2014)	57.4° (1970)
15	79.5°	63.5°	5%	96.6° (1979)	57.2° (1986)
16	79.5°	63.7°	8%	96.8° (2014)	57° (1986)
17	79.2°	63.7°	3%	92.3° (1979)	56.8° (2021)
18	79°	63.3°	3%	94.5° (1984)	55.9° (1993)
19	78.4°	63°	2%	95° (1984)	54° (1978)
20	78.1°	62.8°	10%	92.1° (2015)	56.7° (1989)
21	79.2°	62.6°	5%	90.3° (2021)	55.2° (1965)
22	80.6°	63°	3%	91.9° (1975)	56.5° (1964)
23	81°	63°	2%	98.8° (1975)	56.3° (2010)
24	81°	63.3°	7%	99.9° (1978)	57.2° (2017)
25	80.4°	63°	5%	97.7° (1963)	57.4° (1986)
26	79.7°	63.3°	3%	103.8° (1963)	54.5° (2024)
27	79.7°	63°	3%	99.1° (2010)	55.2° (2013)
28	79.9°	63°	5%	99.3° (1963)	55.6° (2013)
29	79.7°	63.1°	8%	96.4° (1999)	52.7° (2024)
30	80.2°	62.8°	3%	104.2° (2020)	54.9° (2019)