Weather in Irvine in September
In an average September, Irvine sees a daily high around 85°F and a low around 64°F, based on 1980–2026 of local climate records.
| Average high | 85°F |
|---|---|
| Typical high range | 75°F to 94°F |
| Average low | 64°F |
| Typical low range | 58°F to 70°F |
| Average daily precipitation | 0.00 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
112°F
2020-09-06
Lowest
63°F
1986-09-24
Low
Highest
82°F
2022-09-04
Lowest
52°F
1982-09-30
Feels-like
Highest
137°F
2020-09-07
Lowest
52°F
1982-09-30
Humidity
Highest
19.8 g/m³
2026-09-07
Lowest
5.1 g/m³
2016-09-26
Wind
Highest
15 mph
2026-09-08
Lowest
4 mph
1997-09-14
Gust
Highest
35 mph
2022-09-09
Lowest
10 mph
1989-09-24
Precip
Wettest
1.63 in
2023
Driest
0.00 in
2008
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