San Diego County (San Diego)
October
Weather in San Diego County for October 2025
Your guide to San Diego County weather in October - trends and predictions
In general, the average temperature in San Diego County at the beginning of October is 23.7 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.7 °F by the end of October.
Precipitation in San Diego County during October is a rare event, with an average of fewer than 2 rainy days.
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Temperatures
Rain 🌧️
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31
Dry days
0
Rainy days
0
Snow days
22°/16°
Temperatures
15 km/h
Avg max wind
68 %
Avg humidity
San Diego County in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  22° | 3 23° | 4 23° | 5 25° | ||
| 6 26° | 7 26° | 8 25° | 9 23° | 10 23° | 11  22° | 12  21° |
| 13 21° | 14 21° | 15 22° | 16 22° | 17 21° | 18 21° | 19 27° |
| 20 27° | 21 23° | 22 23° | 23 21° | 24 21° | 25 21° | 26 21° |
| 27 21° | 28 19° | 29  21° | 30 25° | 31 24° |
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Temperatures trend during October in San Diego County
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 | Patchy rain possible | 21° /15° | 0.2 mm | 5 | |
| Oct. 2 | Partly cloudy | 22° /16° | 0 mm | 6 | |
| Oct. 3 | Partly cloudy | 23° /16° | 0 mm | 6 | |
| Oct. 4 | Partly cloudy | 23° /16° | 0 mm | 6 | |
| Oct. 5 | Partly cloudy | 25° /16° | 0 mm | 7 | |
| Oct. 6 | Partly cloudy | 26° /17° | 0 mm | 7 | |
| Oct. 7 | Partly cloudy | 26° /16° | 0 mm | 7 | |
| Oct. 8 | Partly cloudy | 25° /17° | 0 mm | 7 | |
| Oct. 9 | Partly cloudy | 23° /17° | 0 mm | 6 | |
| Oct. 10 | Patchy rain possible | 23° /17° | 0.1 mm | 6 | |
| Oct. 11 | Overcast | 22° /16° | 0 mm | 6 | |
| Oct. 12 | Cloudy | 21° /14° | 0 mm | 6 | |
| Oct. 13 | Overcast | 21° /14° | 0 mm | 5 | |
| Oct. 14 | Partly cloudy | 21° /15° | 0 mm | 5 | |
| Oct. 15 | Partly cloudy | 22° /16° | 0 mm | 6 | |
| Oct. 16 | Partly cloudy | 22° /16° | 0 mm | 6 | |
| Oct. 17 | Overcast | 21° /15° | 0 mm | 5 | |
| Oct. 18 | Partly cloudy | 21° /15° | 0 mm | 5 | |
| Oct. 19 | Cloudy | 27° /16° | 0 mm | 7 | |
| Oct. 20 | Partly cloudy | 27° /16° | 0 mm | 7 | |
| Oct. 21 | Cloudy | 23° /15° | 0 mm | 6 | |
| Oct. 22 | Overcast | 23° /16° | 0 mm | 6 | |
| Oct. 23 | Light rain shower | 21° /15° | 0.8 mm | 5 | |
| Oct. 24 | Overcast | 21° /15° | 0 mm | 5 | |
| Oct. 25 | Patchy rain possible | 21° /14° | 0.1 mm | 5 | |
| Oct. 26 | Patchy rain possible | 21° /17° | 0 mm | 5 | |
| Oct. 27 | Cloudy | 21° /16° | 0 mm | 5 | |
| Oct. 28 | Partly cloudy | 19° /14° | 0 mm | 5 | |
| Oct. 29 | Sunny | 21° /14° | 0 mm | 6 | |
| Oct. 30 | Overcast | 25° /11° | 0 mm | 6 | |
| Oct. 31 | Sunny | 24° /12° | 0 mm | 6 | |
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Important Notice
Our weather forecast for San Diego County in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Diego County forecast closer to your planned date for the most up-to-date weather information.
San Diego County in October - FAQ
What are the expected maximum and minimum temperatures in San Diego County during October?
During October, expect a variety of temperatures with highs around 22° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Diego County during October?
Rainfall in San Diego County during October is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in San Diego County during October?
The average wind speed in San Diego County during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in San Diego County
Explore the daily rainfall trends and prepare for San Diego Countys October weather 💧
UV exposure in San Diego County during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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