Is San Diego hot in October?
Days are typically mild at 23.4°C, while nights average 16.3°C.
United States · 1991–2020 normal
San Diego in
October.
Typical October weather in San Diego: 23.4°C by day, 16.3°C at night, 13 mm of rain over 1.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high23.4°C
Typical low16.3°C
Rain13 mm
Wet days1.6
In the year-round weather comparison, October scores 96 out of 100, the highest of the year. Daylight is calculated as 11 h 19 from latitude 32.72°. Open-water sea temperature is 19.3°C (11 km from the place centre).
October at a glance
What is San Diego like in October?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 13 mm across about 2 wet days.
How much daylight is there?
There are about 11 h 19 between sunrise and sunset at mid-month, calculated from the place latitude.
Is October a good time to visit?
October is the strongest month in our year-round weather comparison.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5391811
- NOAA station
- USW00023188 · SAN DIEGO INTL AP
- Station distance
- 2.6 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for San Diego is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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