Arroyo weather in October 2025

Expect 88°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Arroyo in October. Check more long-term weather averages for Arroyo in October before you book your next holiday to Puerto Rico in 2025/2026.

  • 88°F maximum daytime temperature in October in Arroyo88
    88°F max day temperature
  • 7 hours of sunshine per day
  • 18 days with some rainfall in October in Arroyo18
    18 days with some rainfall
  • 75°F minimum night-time temperature in October in Arroyo75
    75°F min night temperature
  • 12 hours of daylight per day in October in Arroyo12
    12 hours of daylight per day
  • Very high heat & humidity in October in ArroyoVH
    Very High heat & humidity
  • 6.7 inches monthly rainfall in October in Arroyo6.7
    6.7 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in October in Arroyo10
    10 (Very High) UV index
  • 84°F sea temperature in October in Arroyo84
    84°F sea temperature

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The October 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)  |  Imperial (°F)

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More about Puerto Rico

How hot is it in Arroyo in October?

Daytime temperatures usually reach 88°F in Arroyo in October with very high heat and humidity, falling to 75°F at night.

How sunny is it in Arroyo in October?

There are normally 7 hours of bright sunshine each day in Arroyo in October - that's 63% of daylight hours.

How warm is the sea around Arroyo in October?

The average sea temperature around Arroyo in October is 84°F.

Does it rain in Arroyo in October?

There are usually 18 days with some rain in Arroyo in October and the average monthly rainfall is 6.7 inches.

What is the chance of a hurricane in Arroyo in October?

On average less than 1 day in October in Arroyo is likely to be affected by the passage of one or more tropical storms.

Arroyo October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:15 18:13
Thursday, 16th October 2025 06:18 18:01
Friday, 31st October 2025 06:23 17:52

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