Arroyo weather in March 2026

Expect daytime maximum temperatures of 29°C in Arroyo, Puerto Rico in March and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 15 days with some rainfall.

  • 29°C maximum daytime temperature in March in Arroyo29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 15 days with some rainfall in March in Arroyo15
    15 days with some rainfall
  • 22°C minimum night-time temperature in March in Arroyo22
    22°C min night temperature
  • 12 hours of daylight per day in March in Arroyo12
    12 hours of daylight per day
  • High heat & humidity in March in ArroyoH
    High heat & humidity
  • 26 mm monthly rainfall in March in Arroyo26
    26 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in Arroyo11
    11+ (Extreme) UV index
  • 26°C sea temperature in March in Arroyo26
    26°C sea temperature

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The March weather guide for Puerto Rico (Arroyo) 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 Arroyo in March?

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

How sunny is it in Arroyo in March?

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

How warm is the sea around Arroyo in March?

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

Does it rain in Arroyo in March?

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

Arroyo March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st March 2026 06:43 18:30
Monday, 16th March 2026 06:32 18:34
Tuesday, 31st March 2026 06:19 18:38

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