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What is Irvine, CA, Weather Like in October?
During the month of October, Irvine, CA,
has an average daytime high temperature of 77°F and an average overnight low temperature dropping to 59°F.
Around 0.54 inches of precipitation is received during the month,
with about 8.34 inches falling in a typical year.
Snow is not common in Irvine, CA.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 24, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 74.3 F
(-2.6 vs avg)
Average Low: 60.4 F
(+0.4 vs avg)
Actual data from: KSNA
Irvine, CA Daily Weather Averages for October
Recorded at Santa Ana John Wayne Ap
(usw00093184),
2.6 miles
WNW of
Irvine, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 62 F | 78 F | 70 F | 0.01" | 7.81" | N/A | N/A | 0.2 F | 5.3 F |
| 10/2 | 62 F | 78 F | 70 F | 0.01" | 7.81" | N/A | N/A | 0.2 F | 5.2 F |
| 10/3 | 62 F | 78 F | 70 F | 0.02" | 7.82" | N/A | N/A | 0.2 F | 5 F |
| 10/4 | 62 F | 78 F | 70 F | 0.03" | 7.83" | N/A | N/A | 0.2 F | 4.9 F |
| 10/5 | 61 F | 78 F | 70 F | 0.04" | 7.84" | N/A | N/A | 0.3 F | 4.8 F |
| 10/6 | 61 F | 77 F | 69 F | 0.05" | 7.85" | N/A | N/A | 0.3 F | 4.6 F |
| 10/7 | 61 F | 77 F | 69 F | 0.07" | 7.87" | N/A | N/A | 0.4 F | 4.5 F |
| 10/8 | 61 F | 77 F | 69 F | 0.08" | 7.88" | N/A | N/A | 0.4 F | 4.4 F |
| 10/9 | 61 F | 77 F | 69 F | 0.09" | 7.89" | N/A | N/A | 0.4 F | 4.2 F |
| 10/10 | 60 F | 77 F | 69 F | 0.11" | 7.91" | N/A | N/A | 0.4 F | 4.1 F |
| 10/11 | 60 F | 77 F | 69 F | 0.12" | 7.92" | N/A | N/A | 0.5 F | 4 F |
| 10/12 | 60 F | 77 F | 68 F | 0.14" | 7.94" | N/A | N/A | 0.5 F | 3.9 F |
| 10/13 | 60 F | 77 F | 68 F | 0.16" | 7.96" | N/A | N/A | 0.5 F | 3.7 F |
| 10/14 | 60 F | 77 F | 68 F | 0.18" | 7.98" | N/A | N/A | 0.5 F | 3.6 F |
| 10/15 | 59 F | 77 F | 68 F | 0.20" | 8.00" | N/A | N/A | 0.6 F | 3.5 F |
| 10/16 | 59 F | 77 F | 68 F | 0.22" | 8.02" | N/A | N/A | 0.6 F | 3.4 F |
| 10/17 | 59 F | 76 F | 68 F | 0.24" | 8.04" | N/A | N/A | 0.7 F | 3.4 F |
| 10/18 | 59 F | 76 F | 68 F | 0.26" | 8.06" | N/A | N/A | 0.8 F | 3.3 F |
| 10/19 | 59 F | 76 F | 67 F | 0.28" | 8.08" | N/A | N/A | 0.8 F | 3.2 F |
| 10/20 | 58 F | 76 F | 67 F | 0.30" | 8.10" | N/A | N/A | 0.9 F | 3.1 F |
| 10/21 | 58 F | 76 F | 67 F | 0.32" | 8.12" | N/A | N/A | 0.9 F | 3 F |
| 10/22 | 58 F | 76 F | 67 F | 0.34" | 8.14" | N/A | N/A | 0.9 F | 2.9 F |
| 10/23 | 58 F | 76 F | 67 F | 0.37" | 8.17" | N/A | N/A | 1 F | 2.8 F |
| 10/24 | 58 F | 76 F | 67 F | 0.39" | 8.19" | N/A | N/A | 1 F | 2.7 F |
| 10/25 | 57 F | 76 F | 67 F | 0.41" | 8.21" | N/A | N/A | 1.1 F | 2.6 F |
| 10/26 | 57 F | 76 F | 66 F | 0.43" | 8.23" | N/A | N/A | 1.1 F | 2.5 F |
| 10/27 | 57 F | 76 F | 66 F | 0.45" | 8.25" | N/A | N/A | 1.2 F | 2.5 F |
| 10/28 | 57 F | 75 F | 66 F | 0.47" | 8.27" | N/A | N/A | 1.3 F | 2.4 F |
| 10/29 | 57 F | 75 F | 66 F | 0.50" | 8.30" | N/A | N/A | 1.4 F | 2.4 F |
| 10/30 | 57 F | 75 F | 66 F | 0.52" | 8.32" | N/A | N/A | 1.4 F | 2.3 F |
| 10/31 | 56 F | 75 F | 66 F | 0.54" | 8.34" | N/A | N/A | 1.5 F | 2.2 F |
