Yearly weather and climate in San Diego, United States

The yearly weather in San Diego runs from around 8°C in January to 25°C in August. July is the driest month at 0 rainy days; March the wettest at 11. Here is the annual climate data, so you know what you are packing for.

Best time to visit

The best weather is typically in May, Jun, Jul, Aug, Sep, Oct, Nov, with mild temperatures and lower rainfall.

Sunshine

Expect up to 12 hours of clear skies in Jul, but only 8.1 hours in Jan. Pack sunglasses and SPF accordingly.

Rainfall

It rains the most in Jan (139mm over 10 days). A reliable rain jacket is a must-have if visiting then.

Day-to-night swings

Temperatures typically drop by 8°C from day to night. Make sure to pack layers for the evenings.

Average temperatures and rainfall

Daily highs and lows in San Diego, averaged over 10 years of recorded weather, with the number of days it typically rains.

  1. 1762°847°10Jan
  2. 1661°847°9Feb
  3. 1661°949°11Mar
  4. 1865°1152°3Apr
  5. 1967°1457°2May
  6. 2171°1660°1Jun
  7. 2476°1864°0Jul
  8. 2578°1865°1Aug
  9. 2476°1864°1Sep
  10. 2475°1458°2Oct
  11. 2170°1051°4Nov
  12. 1966°949°2Dec

Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Jul is typically driest at 0 days (0mm); Mar the wettest at 11 days (119mm).

Average monthly temperature and rainfall in San Diego
MonthAverage highAverage lowRainy daysTotal rainfall
Jan17°C8°C10139mm
Feb16°C8°C9111mm
Mar16°C9°C11119mm
Apr18°C11°C38mm
May19°C14°C26mm
Jun21°C16°C13mm
Jul24°C18°C00mm
Aug25°C18°C121mm
Sep24°C18°C18mm
Oct24°C14°C23mm
Nov21°C10°C430mm
Dec19°C9°C225mm

Weather data by Open-Meteo.com

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