Mild
Average highs are around 24°C, so days are mild rather than hot.
October verdict
Good for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 7.9h per day, enough for a balanced month. Rainfall averages 8mm, which is relatively low for holiday planning.

Monthly averages
Temp
24°C
Rain
8mm
Sun
7.9h
Sea
19°C
Weather score
68
Good
Mild
Average highs are around 24°C, so days are mild rather than hot.
Drier
Rainfall averages 8mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 19°C, so the water can feel cool.
Map
Compare San Diego, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
October24°C average high
October sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
October8mm average rain
October sits on the drier side of San Diego's year, which helps with sightseeing and transfers.
Driest monthsApril to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
October7.9 hours average sun
October is below San Diego's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril and July to August
This stretch has the strongest sunshine in the monthly averages.
October19°C average sea
October sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
October68 weather score
October sits close to San Diego's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
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