San Diego weather in March 2026

Expect daytime maximum temperatures of 19°C in San Diego, California in March based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 51 mm of rainfall in the month.

  • 19°C maximum daytime temperature in March in San Diego19
    19°C max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in March in San Diego6
    6 days with some rainfall
  • 10°C minimum night-time temperature in March in San Diego10
    10°C 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
  • 51 mm monthly rainfall in March in San Diego51
    51 mm of monthly rainfall
  • UV (maximum) index 6 (High) in March in San Diego6
    6 (High) UV index
  • 15°C sea temperature in March in San Diego15
    15°C 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 / mm)  |  Imperial (°F / inches)

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More about California

How hot is it in San Diego in March?

Daytime temperatures usually reach 21°C in San Diego in March, falling to 10°C 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.

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 67mm.

San Diego March sunrise & sunset times

Browse the sunrise and sunset times for San Diego in March 2026. Select a month to view San Diego sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st March 2026 06:16 17:46
Monday, 16th March 2026 05:57 17:57
Tuesday, 31st March 2026 05:38 18:08

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