San Juan weather in March 2025

Expect 28°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in San Juan in March. Check more long-term weather averages for San Juan in March before you book your next holiday to Puerto Rico in 2025/2026.

  • 28°C maximum daytime temperature in March in San Juan28
    28°C max day temperature
  • 9 hours of sunshine per day
  • 15 days with some rainfall in March in San Juan15
    15 days with some rainfall
  • 21°C minimum night-time temperature in March in San Juan21
    21°C min night temperature
  • 12 hours of daylight per day in March in San Juan12
    12 hours of daylight per day
  • Moderate heat & humidity in March in San JuanM
    Moderate heat & humidity
  • 79 mm monthly rainfall in March in San Juan79
    79 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in San Juan11
    11+ (Extreme) UV index
  • 26°C sea temperature in March in San Juan26
    26°C sea temperature

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The March weather guide for Puerto Rico (San Juan) 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 Puerto Rico

How hot is it in San Juan in March?

Daytime temperatures usually reach 28°C in San Juan in March with moderate heat and humidity, falling to 21°C at night.

How sunny is it in San Juan in March?

There are normally 9 hours of bright sunshine each day in San Juan in March - that's 75% of daylight hours.

How warm is the sea around San Juan in March?

The average sea temperature around San Juan in March is 26°C.

Does it rain in San Juan in March?

There are usually 15 days with some rain in San Juan in March and the average monthly rainfall is 79mm.

San Juan March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:43 18:30
Sunday, 16th March 2025 06:32 18:35
Monday, 31st March 2025 06:19 18:38

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