San Diego weather in March 2025

Expect 66°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in San Diego in March. Check more long-term weather averages for San Diego in March before you book your next holiday to California in 2025/2026.

  • 66°F maximum daytime temperature in March in San Diego66
    66°F max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in March in San Diego6
    6 days with some rainfall
  • 50°F minimum night-time temperature in March in San Diego50
    50°F min night temperature
  • 12 hours of daylight per day in March in San Diego12
    12 hours of daylight per day
  • No heat & humidity in March in San Diego0
    No heat & humidity
  • 2.0 inches monthly rainfall in March in San Diego2.0
    2.0 inches of monthly rainfall
  • UV (maximum) index 6 (High) in March in San Diego6
    6 (High) UV index
  • 59°F sea temperature in March in San Diego59
    59°F sea temperature

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The March weather guide for California (San Diego) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about California

How hot is it in San Diego in March?

Daytime temperatures usually reach 66°F in San Diego in March, falling to 50°F at night.

How sunny is it in San Diego in March?

There are normally 9 hours of bright sunshine each day in San Diego in March - that's 71% of daylight hours.

How warm is the sea around San Diego in March?

The average sea temperature around San Diego in March is 59°F.

Does it rain in San Diego in March?

There are usually 6 days with some rain in San Diego in March and the average monthly rainfall is 2.0 inches.

San Diego March sunrise & sunset times

Browse the sunrise and sunset times for San Diego in March 2025. Select a month to view San Diego sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:16 17:46
Sunday, 16th March 2025 05:57 17:58
Monday, 31st March 2025 05:37 18:08

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