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What is Rio Vista Coast Guard Light Station, CA, Weather Like in October?
During the month of October, Rio Vista Coast Guard Light Station, CA,
has an average daytime high temperature of 78°F and an average overnight low temperature dropping to 55°F.
Around 0.42 inches of precipitation is received during the month,
with about 8.89 inches falling in a typical year.
Snow is not common in Rio Vista Coast Guard Light Station, 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: 75.7 F
(-3.2 vs avg)
Average Low: 54.5 F
(-0.5 vs avg)
Daytime temperatures were significantly below average.
Actual data from: PWS_SUNCRESTESTATES
Rio Vista Coast Guard Light Station, CA Daily Weather Averages for October
Recorded at Antioch Pumping Plt #3
(usc00040232),
11.9 miles
SSW of
Rio Vista Coast Guard Light Station, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 57 F | 83 F | 70 F | 0.00" | 8.47" | 0.00" | 0.00" | 0.4 F | 5.4 F |
| 10/2 | 57 F | 83 F | 70 F | 0.01" | 8.48" | 0.00" | 0.00" | 0.4 F | 5.2 F |
| 10/3 | 57 F | 82 F | 70 F | 0.01" | 8.48" | 0.00" | 0.00" | 0.5 F | 5 F |
| 10/4 | 57 F | 82 F | 69 F | 0.02" | 8.49" | 0.00" | 0.00" | 0.6 F | 4.9 F |
| 10/5 | 56 F | 82 F | 69 F | 0.02" | 8.49" | 0.00" | 0.00" | 0.6 F | 4.7 F |
| 10/6 | 56 F | 81 F | 69 F | 0.03" | 8.50" | 0.00" | 0.00" | 0.7 F | 4.5 F |
| 10/7 | 56 F | 81 F | 69 F | 0.03" | 8.50" | 0.00" | 0.00" | 0.7 F | 4.3 F |
| 10/8 | 56 F | 81 F | 68 F | 0.04" | 8.51" | 0.00" | 0.00" | 0.8 F | 4.1 F |
| 10/9 | 56 F | 80 F | 68 F | 0.04" | 8.51" | 0.00" | 0.00" | 0.9 F | 3.9 F |
| 10/10 | 56 F | 80 F | 68 F | 0.05" | 8.52" | 0.00" | 0.00" | 0.9 F | 3.7 F |
| 10/11 | 55 F | 80 F | 68 F | 0.06" | 8.53" | 0.00" | 0.00" | 1 F | 3.5 F |
| 10/12 | 55 F | 79 F | 67 F | 0.06" | 8.53" | 0.00" | 0.00" | 1.1 F | 3.3 F |
| 10/13 | 55 F | 79 F | 67 F | 0.07" | 8.54" | 0.00" | 0.00" | 1.2 F | 3.1 F |
| 10/14 | 55 F | 78 F | 67 F | 0.08" | 8.55" | 0.00" | 0.00" | 1.3 F | 2.9 F |
| 10/15 | 55 F | 78 F | 66 F | 0.10" | 8.57" | 0.00" | 0.00" | 1.4 F | 2.7 F |
| 10/16 | 54 F | 78 F | 66 F | 0.11" | 8.58" | 0.00" | 0.00" | 1.5 F | 2.6 F |
| 10/17 | 54 F | 77 F | 66 F | 0.12" | 8.59" | 0.00" | 0.00" | 1.7 F | 2.4 F |
| 10/18 | 54 F | 77 F | 65 F | 0.13" | 8.60" | 0.00" | 0.00" | 1.8 F | 2.2 F |
| 10/19 | 54 F | 77 F | 65 F | 0.15" | 8.62" | 0.00" | 0.00" | 1.9 F | 2 F |
| 10/20 | 54 F | 76 F | 65 F | 0.16" | 8.63" | 0.00" | 0.00" | 2 F | 1.8 F |
| 10/21 | 53 F | 76 F | 65 F | 0.18" | 8.65" | 0.00" | 0.00" | 2.2 F | 1.7 F |
| 10/22 | 53 F | 75 F | 64 F | 0.20" | 8.67" | 0.00" | 0.00" | 2.4 F | 1.5 F |
| 10/23 | 53 F | 75 F | 64 F | 0.22" | 8.69" | 0.00" | 0.00" | 2.5 F | 1.4 F |
| 10/24 | 53 F | 74 F | 64 F | 0.24" | 8.71" | 0.00" | 0.00" | 2.8 F | 1.2 F |
| 10/25 | 52 F | 74 F | 63 F | 0.26" | 8.73" | 0.00" | 0.00" | 3 F | 1.1 F |
| 10/26 | 52 F | 74 F | 63 F | 0.28" | 8.75" | 0.00" | 0.00" | 3.2 F | 1 F |
| 10/27 | 52 F | 73 F | 62 F | 0.31" | 8.78" | 0.00" | 0.00" | 3.5 F | 0.9 F |
| 10/28 | 52 F | 73 F | 62 F | 0.34" | 8.81" | 0.00" | 0.00" | 3.8 F | 0.9 F |
| 10/29 | 51 F | 72 F | 62 F | 0.36" | 8.83" | 0.00" | 0.00" | 4 F | 0.8 F |
| 10/30 | 51 F | 72 F | 61 F | 0.39" | 8.86" | 0.00" | 0.00" | 4.3 F | 0.7 F |
| 10/31 | 51 F | 71 F | 61 F | 0.42" | 8.89" | 0.00" | 0.00" | 4.6 F | 0.6 F |
