Is Arroyo hot in October?
Days are typically hot at 31.7°C, while nights average 24.5°C.
Puerto Rico · 1991–2020 normal
Arroyo in
October.
Typical October weather in Arroyo: 31.7°C by day, 24.5°C at night, 185 mm of rain over 13.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.7°C
Typical low24.5°C
Rain185 mm
Wet days13.2
In the year-round weather comparison, October scores 27 out of 100 (February leads the year at 62). Daylight is calculated as 11 h 42 from latitude 17.97°. Open-water sea temperature is 29.0°C (12 km from the place centre).
October at a glance
What is Arroyo like in October?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 185 mm across about 13 wet days.
How much daylight is there?
There are about 11 h 42 between sunrise and sunset at mid-month, calculated from the place latitude.
Is October a good time to visit?
October ranks 11 of 12 in our weather comparison; February ranks first.
Event window
Warm sea in October
The nearest open-water NOAA OISST 1991–2020 cell averages 29.0°C in October. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4562681
- NOAA station
- RQC00664193 · GUAYAMA 1SW
- Station distance
- 7.1 km from the place centre
- Coverage
- Strong coverage · 27 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Arroyo is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
How travel partnerships will work