The highest day temperature in October 2025 was 97°F. The lowest night temperature was 76°F. The average values for day and night temperatures during October were 90.3°F и 79.8°F respectivly.

The average sea surface temperature in October 2025 for Arecibo was 89.3°F. The maximum and minimum values were 88.4°F and 89.8°F respectively.

Most of the days in October are cloudy but you can also expect sunny or gloomy days.

Precipitation total in October for Arecibo is 3.7 in. It makes october one of the most rainy months of the year.

The average wind speed in October is 8.0 mph. It makes October the most windless month of the year for Arecibo.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Arecibo in October is 6.8 hours.