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San Diego climate
Typical historical weather for San Diego, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for San Diego.
Annual average
23.3°C
across all months
Warmest month
36.5°C
Aug average high
Coolest month
8.9°C
Jan average low
Annual rainfall
664mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
41.9°C
23 July 2018
Coldest day
-7.7°C
15 February 2021
Wettest day
94.4mm
27 March 2025
Windiest day
9.5m/s
10 January 2020
See the detail: San Diego on 27 March 2025.