The best months

  • SunMay to October
  • BeachAugust to September
  • CityJanuary to April, July to December

…

The twelve months at a glance

Month-by-month verdict for San Diego
JanFebMarAprMayJunJulAugSepOctNovDec
SunFair, 42/100Fair, 41/100Fair, 52/100Good, 69/100Ideal, 87/100Ideal, 99/100Ideal, 100/100Ideal, 100/100Ideal, 100/100Ideal, 99/100Good, 78/100Fair, 38/100
BeachBest avoided, 20/100Best avoided, 20/100Best avoided, 20/100Best avoided, 26/100Fair, 49/100Good, 62/100Good, 78/100Ideal, 83/100Ideal, 81/100Good, 67/100Fair, 37/100Best avoided, 20/100
CityIdeal, 88/100Ideal, 85/100Ideal, 88/100Ideal, 94/100Good, 75/100Good, 75/100Ideal, 94/100Ideal, 90/100Ideal, 93/100Ideal, 100/100Ideal, 97/100Ideal, 90/100
  • Ideal
  • Good
  • Fair
  • Best avoided
  • Risk flagged

Temperatures and rain

Monthly temperatures and rain in San DiegoThe values are repeated in the table under the chart.0°C5°C10°C15°C20°C25°C30°CHighLowSea98 mmRainJFMAMJJASOND
See the month-by-month values
MonthHighLowSeaRain
January18°C7°C15°C77 mm
February18°C8°C15°C98 mm
March19°C9°C16°C68 mm
April20°C11°C16°C35 mm
May22°C13°C17°C19 mm
June25°C15°C19°C5 mm
July28°C18°C20°C5 mm
August29°C18°C21°C3 mm
September28°C17°C21°C7 mm
October25°C14°C20°C23 mm
November21°C10°C18°C35 mm
December18°C7°C16°C61 mm

Estimated flight time

  • From YUL : about 5 h 30 min
  • From YYZ : about 4 h 55 min
  • From YVR : about 2 h 55 min

Estimate of a nonstop flight computed from the distance: not a schedule. Connections lengthen the trip.

Getting to San Diego with points

Keep going

Where this data comes from

Temperatures, sunshine and rain: monthly normals we computed over 1991-2020. These are estimates from a climate reanalysis, not station readings.

  • ERA5 reanalysis-era5-single-levels-timeseries (C3S, CC-BY)
  • NOAA OISST v2.1

Contains modified Copernicus Climate Change Service information (ERA5, 2026, CC BY 4.0 licence). Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Sea temperature: NOAA OISST v2.1 (Huang et al., 2021, J. Climate 34, doi:10.1175/JCLI-D-20-0166.1).