Arroyo weather in January 2025

Expect 28°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Arroyo in January. Check more long-term weather averages for Arroyo in January before you book your next holiday to Puerto Rico in 2025/2026.

  • 28°C maximum daytime temperature in January in Arroyo28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 20 days with some rainfall in January in Arroyo20
    20 days with some rainfall
  • 22°C minimum night-time temperature in January in Arroyo22
    22°C min night temperature
  • 11 hours of daylight per day in January in Arroyo11
    11 hours of daylight per day
  • High heat & humidity in January in ArroyoH
    High heat & humidity
  • 32 mm monthly rainfall in January in Arroyo32
    32 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in January in Arroyo8
    8 (Very High) UV index
  • 27°C sea temperature in January in Arroyo27
    27°C sea temperature

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The January 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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How hot is it in Arroyo in January?

Daytime temperatures usually reach 28°C in Arroyo in January with high heat and humidity, falling to 22°C at night.

How sunny is it in Arroyo in January?

There are normally 8 hours of bright sunshine each day in Arroyo in January - that's 70% of daylight hours.

How warm is the sea around Arroyo in January?

The average sea temperature around Arroyo in January is 27°C.

Does it rain in Arroyo in January?

There are usually 20 days with some rain in Arroyo in January and the average monthly rainfall is 32mm.

Arroyo January sunrise & sunset times

Browse the sunrise and sunset times for Arroyo in January 2025. Select a month to view Arroyo sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Wednesday, 1st January 2025 06:56 18:00
Thursday, 16th January 2025 06:59 18:10
Friday, 31st January 2025 06:57 18:19

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