San Luis Obispo Weather in October

The climate in San Luis Obispo during October can be summarized as mild and dry.

October is in the fall / autumn in San Luis Obispo and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 24°C (74°F), whilst at night 9°C (48°F) is normal.

On average October is the 6th driest month of the year in San Luis Obispo with around 21mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.9 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Luis Obispo in October 2025.