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What is San Diego State University, CA, Weather Like in October?
During the month of October, San Diego State University, CA,
has an average daytime high temperature of 78°F and an average overnight low temperature dropping to 58°F.
Around 0.54 inches of precipitation is received during the month,
with about 8.50 inches falling in a typical year.
Snow is not common in San Diego State University, CA.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 25, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 74 F
(-4.2 vs avg)
Average Low: 58.3 F
(-0.4 vs avg)
Daytime temperatures were significantly below average.
Actual data from: KMYF
San Diego State University, CA Daily Weather Averages for October
Recorded at San Diego Montgomery Fld
(usw00003131),
4.8 miles
NW of
San Diego State University, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 61 F | 79 F | 70 F | 0.01" | 7.97" | N/A | N/A | 0.3 F | 5.5 F |
| 10/2 | 61 F | 79 F | 70 F | 0.02" | 7.98" | N/A | N/A | 0.3 F | 5.4 F |
| 10/3 | 61 F | 79 F | 70 F | 0.02" | 7.98" | N/A | N/A | 0.3 F | 5.2 F |
| 10/4 | 61 F | 79 F | 70 F | 0.03" | 7.99" | N/A | N/A | 0.3 F | 5.1 F |
| 10/5 | 60 F | 79 F | 70 F | 0.04" | 8.00" | N/A | N/A | 0.4 F | 5 F |
| 10/6 | 60 F | 79 F | 69 F | 0.06" | 8.02" | N/A | N/A | 0.4 F | 4.8 F |
| 10/7 | 60 F | 79 F | 69 F | 0.07" | 8.03" | N/A | N/A | 0.4 F | 4.7 F |
| 10/8 | 60 F | 79 F | 69 F | 0.08" | 8.04" | N/A | N/A | 0.5 F | 4.6 F |
| 10/9 | 59 F | 79 F | 69 F | 0.10" | 8.06" | N/A | N/A | 0.5 F | 4.4 F |
| 10/10 | 59 F | 78 F | 69 F | 0.11" | 8.07" | N/A | N/A | 0.5 F | 4.3 F |
| 10/11 | 59 F | 78 F | 69 F | 0.12" | 8.08" | N/A | N/A | 0.6 F | 4.2 F |
| 10/12 | 59 F | 78 F | 69 F | 0.14" | 8.10" | N/A | N/A | 0.6 F | 4.1 F |
| 10/13 | 59 F | 78 F | 68 F | 0.15" | 8.11" | N/A | N/A | 0.6 F | 3.9 F |
| 10/14 | 58 F | 78 F | 68 F | 0.17" | 8.13" | N/A | N/A | 0.7 F | 3.8 F |
| 10/15 | 58 F | 78 F | 68 F | 0.19" | 8.15" | N/A | N/A | 0.7 F | 3.7 F |
| 10/16 | 58 F | 78 F | 68 F | 0.21" | 8.17" | N/A | N/A | 0.8 F | 3.6 F |
| 10/17 | 58 F | 78 F | 68 F | 0.23" | 8.19" | N/A | N/A | 0.9 F | 3.5 F |
| 10/18 | 57 F | 78 F | 68 F | 0.25" | 8.21" | N/A | N/A | 0.9 F | 3.5 F |
| 10/19 | 57 F | 78 F | 67 F | 0.27" | 8.23" | N/A | N/A | 1 F | 3.4 F |
| 10/20 | 57 F | 77 F | 67 F | 0.28" | 8.24" | N/A | N/A | 1.1 F | 3.3 F |
| 10/21 | 57 F | 77 F | 67 F | 0.31" | 8.27" | N/A | N/A | 1.2 F | 3.2 F |
| 10/22 | 57 F | 77 F | 67 F | 0.33" | 8.29" | N/A | N/A | 1.2 F | 3.1 F |
| 10/23 | 56 F | 77 F | 67 F | 0.35" | 8.31" | N/A | N/A | 1.3 F | 3 F |
| 10/24 | 56 F | 77 F | 67 F | 0.37" | 8.33" | N/A | N/A | 1.3 F | 2.9 F |
| 10/25 | 56 F | 77 F | 66 F | 0.39" | 8.35" | N/A | N/A | 1.4 F | 2.7 F |
| 10/26 | 56 F | 77 F | 66 F | 0.42" | 8.38" | N/A | N/A | 1.5 F | 2.6 F |
| 10/27 | 55 F | 77 F | 66 F | 0.44" | 8.40" | N/A | N/A | 1.6 F | 2.5 F |
| 10/28 | 55 F | 77 F | 66 F | 0.46" | 8.42" | N/A | N/A | 1.7 F | 2.5 F |
| 10/29 | 55 F | 76 F | 66 F | 0.49" | 8.45" | N/A | N/A | 1.8 F | 2.4 F |
| 10/30 | 55 F | 76 F | 65 F | 0.51" | 8.47" | N/A | N/A | 1.9 F | 2.3 F |
| 10/31 | 54 F | 76 F | 65 F | 0.54" | 8.50" | N/A | N/A | 2 F | 2.2 F |
