San Diego weather in October
“The kind of pleasant weather you build a trip around.”
Roughly 2 rainy days across the month, on average.
In october, San Diego settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 24°C (76°F), cooling to 16°C after sunset. Rain is rare enough that you can plan without a contingency. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for San Diego in October
- •A light layer for cool mornings and evenings
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for San Diego in October
- →Breathable travel pantsAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
- →Anti-theft crossbody bagAmazon · shop this
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Where to stay in San Diego
We don't review individual hotels — plenty of people do that well. What we do is send you to compare rooms in San Diego across trusted platforms.
Compare hotels on Booking.com→October vs. the rest of the year
How this month compares in San Diego. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit San Diego
While October has its own character in San Diego, the data-backed best months to visit San Diego are April, June, July, August. These months combine the most favourable temperatures, rainfall, and sunshine across a ten-year climate record.
See the full best-time-to-visit guide for San DiegoOther places with a similar climate right now
San Diego in October — FAQ
Q01Is October a good time to visit San Diego?
Is October a good time to visit San Diego?
Yes — this is one of the best months of the year to visit. In October, San Diego averages a high of 24°C (76°F) and a low of 16°C (60°F), with 14mm of rainfall across roughly 2 rainy days.
Q02What is the average temperature in San Diego in October?
What is the average temperature in San Diego in October?
The average high temperature in San Diego during October is 24°C (76°F), with an average low of 16°C (60°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does San Diego have in October?
How many rainy days does San Diego have in October?
San Diego averages approximately 2 rainy days in October, with a total monthly rainfall of about 14mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for San Diego in October?
What should I pack for San Diego in October?
For San Diego in October, pack layered clothing for changing temperatures, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is San Diego in October?
How crowded is San Diego in October?
Tourist crowds in San Diego during October are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely.