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What is Martinez, CA, Weather Like in October?
During the month of October, Martinez, CA,
has an average daytime high temperature of 77°F and an average overnight low temperature dropping to 46°F.
Around 0.79 inches of precipitation is received during the month,
with about 13.48 inches falling in a typical year.
Snow is not common in Martinez, 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: 75.7 F
(-1.9 vs avg)
Average Low: 53.1 F
(+6.8 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_E7741
Martinez, CA Daily Weather Averages for October
Recorded at Martinez Wtp
(usc00045378),
1.2 miles
ESE of
Martinez, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 48 F | 81 F | 65 F | 0.01" | 12.70" | 0.00" | 0.00" | 2.2 F | 1.7 F |
| 10/2 | 48 F | 81 F | 64 F | 0.02" | 12.71" | 0.00" | 0.00" | 2.3 F | 1.6 F |
| 10/3 | 48 F | 80 F | 64 F | 0.03" | 12.72" | 0.00" | 0.00" | 2.5 F | 1.5 F |
| 10/4 | 48 F | 80 F | 64 F | 0.05" | 12.74" | 0.00" | 0.00" | 2.6 F | 1.5 F |
| 10/5 | 47 F | 80 F | 64 F | 0.06" | 12.75" | 0.00" | 0.00" | 2.8 F | 1.4 F |
| 10/6 | 47 F | 80 F | 63 F | 0.07" | 12.76" | 0.00" | 0.00" | 2.9 F | 1.3 F |
| 10/7 | 47 F | 79 F | 63 F | 0.09" | 12.78" | 0.00" | 0.00" | 3.1 F | 1.2 F |
| 10/8 | 47 F | 79 F | 63 F | 0.10" | 12.79" | 0.00" | 0.00" | 3.2 F | 1.1 F |
| 10/9 | 47 F | 79 F | 63 F | 0.11" | 12.80" | 0.00" | 0.00" | 3.3 F | 1 F |
| 10/10 | 47 F | 78 F | 63 F | 0.13" | 12.82" | 0.00" | 0.00" | 3.5 F | 1 F |
| 10/11 | 47 F | 78 F | 62 F | 0.15" | 12.84" | 0.00" | 0.00" | 3.7 F | 0.9 F |
| 10/12 | 46 F | 78 F | 62 F | 0.17" | 12.86" | 0.00" | 0.00" | 3.8 F | 0.8 F |
| 10/13 | 46 F | 77 F | 62 F | 0.19" | 12.88" | 0.00" | 0.00" | 4 F | 0.8 F |
| 10/14 | 46 F | 77 F | 62 F | 0.21" | 12.90" | 0.00" | 0.00" | 4.2 F | 0.7 F |
| 10/15 | 46 F | 77 F | 61 F | 0.23" | 12.92" | 0.00" | 0.00" | 4.4 F | 0.6 F |
| 10/16 | 46 F | 76 F | 61 F | 0.26" | 12.95" | 0.00" | 0.00" | 4.6 F | 0.5 F |
| 10/17 | 45 F | 76 F | 61 F | 0.28" | 12.97" | 0.00" | 0.00" | 4.8 F | 0.5 F |
| 10/18 | 45 F | 76 F | 60 F | 0.31" | 13.00" | 0.00" | 0.00" | 5 F | 0.4 F |
| 10/19 | 45 F | 75 F | 60 F | 0.34" | 13.03" | 0.00" | 0.00" | 5.2 F | 0.4 F |
| 10/20 | 45 F | 75 F | 60 F | 0.36" | 13.05" | 0.00" | 0.00" | 5.4 F | 0.3 F |
| 10/21 | 45 F | 75 F | 60 F | 0.39" | 13.08" | 0.00" | 0.00" | 5.7 F | 0.2 F |
| 10/22 | 45 F | 74 F | 59 F | 0.43" | 13.12" | 0.00" | 0.00" | 5.9 F | 0.2 F |
| 10/23 | 44 F | 74 F | 59 F | 0.46" | 13.15" | 0.00" | 0.00" | 6.2 F | 0.2 F |
| 10/24 | 44 F | 73 F | 59 F | 0.50" | 13.19" | 0.00" | 0.00" | 6.4 F | 0.1 F |
| 10/25 | 44 F | 73 F | 58 F | 0.53" | 13.22" | 0.00" | 0.00" | 6.7 F | 0.1 F |
| 10/26 | 44 F | 73 F | 58 F | 0.57" | 13.26" | 0.00" | 0.00" | 7 F | 0.1 F |
| 10/27 | 44 F | 72 F | 58 F | 0.61" | 13.30" | 0.00" | 0.00" | 7.3 F | 0.1 F |
| 10/28 | 43 F | 72 F | 58 F | 0.66" | 13.35" | 0.00" | 0.00" | 7.6 F | 0.1 F |
| 10/29 | 43 F | 71 F | 57 F | 0.70" | 13.39" | 0.00" | 0.00" | 7.9 F | 0.1 F |
| 10/30 | 43 F | 71 F | 57 F | 0.75" | 13.44" | 0.00" | 0.00" | 8.2 F | 0.1 F |
| 10/31 | 43 F | 71 F | 57 F | 0.79" | 13.48" | 0.00" | 0.00" | 8.5 F | 0.1 F |
