San Diego (CA)
October
Weather in San Diego, California for October 2025
Your guide to San Diego weather in October - trends and predictions
Heat Advisory - See hour by hour.
Until now, October 2025 in San Diego is slightly cooler than the historical average by -1.9 °F.
The forecast for the next days in San Diego predicts a temperature of 23.6 °F, which is cooler than the historical average.
In general, the average temperature in San Diego at the beginning of October is 22.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 23.3 °F by the end of October.
Precipitation in San Diego 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 Weather October
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Temperatures trend during October in San Diego
See the weather trend as well as the moving average line
October weather in San Diego day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Patchy rain possible | 22° /16° | 0.1 mm | 5 | |
| Oct. 2 |  Partly cloudy | 22° /15° | 0 mm | 6 | |
| Oct. 3 | Partly cloudy | 22° /16° | 0 mm | 5 | |
| Oct. 4 | Partly cloudy | 22° /16° | 0 mm | 5 | |
| Oct. 5 | Partly cloudy | 23° /16° | 0 mm | 6 | |
| Oct. 6 | Partly cloudy | 24° /16° | 0 mm | 6 | |
| Oct. 7 | Partly cloudy | 24° /16° | 0 mm | 6 | |
| Oct. 8 | Partly cloudy | 23° /16° | 0 mm | 6 | |
| Oct. 9 | Partly cloudy | 23° /17° | 0 mm | 6 | |
| Oct. 10 | Patchy rain possible | 24° /17° | 0.1 mm | 6 | |
| Oct. 11 |  Overcast | 21° /16° | 0 mm | 5 | |
| Oct. 12 |  Cloudy | 21° /14° | 0 mm | 5 | |
| Oct. 13 | Overcast | 20° /14° | 0 mm | 5 | |
| Oct. 14 | Partly cloudy | 20° /15° | 10.8 mm | 5 | |
| Oct. 15 | Partly cloudy | 22° /15° | 1.6 mm | 6 | |
| Oct. 16 | Partly cloudy | 23° /14° | 0 mm | 6 | |
| Oct. 17 | Overcast | 21° /15° | 0 mm | 5 | |
| Oct. 18 | Partly cloudy | 21° /14° | 0 mm | 5 | |
| Oct. 19 | Cloudy | 25° /15° | 0 mm | 6 | |
| Oct. 20 | Partly cloudy | 25° /15° | 0 mm | 7 | |
| Oct. 21 | Partly cloudy | 22° /15° | 0 mm | 5 | |
| Oct. 22 | Overcast | 21° /15° | 0 mm | 5 | |
| Oct. 23 | Light rain shower | 20° /15° | 0.6 mm | 5 | |
| Oct. 24 | Overcast | 21° /15° | 0 mm | 5 | |
| Oct. 25 | Patchy rain possible | 20° /14° | 0.1 mm | 5 | |
| Oct. 26 | Patchy rain possible | 21° /16° | 0 mm | 5 | |
| Oct. 27 | Cloudy | 21° /16° | 0 mm | 5 | |
| Oct. 28 | Partly cloudy | 23° /14° | 0 mm | 6 | |
| Oct. 29 |  Sunny | 32° /14° | 0 mm | 1.1 | |
| Oct. 30 | Partly cloudy | 24° /15° | 0 mm | 1.1 | |
| Oct. 31 | Partly cloudy | 22° /15° | 0 mm | 1.1 | |
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Important Notice
Our weather forecast for San Diego 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 forecast closer to your planned date for the most up-to-date weather information.
Change Month
San Diego in October - FAQ
What are the expected maximum and minimum temperatures in San Diego 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 during October?
Rainfall in San Diego 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 during October?
The average wind speed in San Diego during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in San Diego
Explore the daily rainfall trends and prepare for San Diegos October weather 💧
UV exposure in San Diego during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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