San Diego weather in October
Long-run climate averages for San Diego, CA in October, plus what the forecast models say for the days ahead.
In October, San Diego averages 75°F by day and 58°F at night. The wettest month is usually January.
October in San Diego averages a daytime high of 75°F and an overnight low of 58°F, which reads as warm for this part of the world. Across the whole year San Diego sees roughly 19 inches of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like — for that, see the live San Diego forecast with every model compared and how much they currently agree.
San Diego weather by month
what to expect in San Diego through the yearHere is San Diego's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to San Diego by season.