Monthly weather forecast and climate
Arroyo, PR

What is the coldest month in Arroyo?

January is the coldest month in Arroyo, Puerto Rico, with an average high-temperature of 82.4°F (28°C) and an average low-temperature of 71.6°F (22°C).

How many days does it rain in Arroyo?

In Arroyo, Puerto Rico, during the entire year, the rain falls for 206 days, and collects up to 47.6" (1208mm) of precipitation.

What is the driest month in Arroyo?

The month with the least rainfall is March when the rain falls for 15 days and typically collects 1" (26mm) of precipitation.

What are the warmest months in Arroyo?

Warmest months are June through October, with an average high-temperature of 87.8°F (31°C).

What is the wettest month in Arroyo?

The month with the most rainfall in Arroyo is September when the rain falls for 17 days and typically aggregates up to 7.1" (181mm) of precipitation.
Average temperature - Arroyo, PR
Average rainfall - Arroyo, PR
Average rainfall days - Arroyo, PR
Average sea temperature - Arroyo, PR

The best month for swimming (with the highest average sea temperature) is September (85.4°F).
Coldest months (with the lowest average sea temperature) are February and March (79.3°F).

Average daylight / Average sunshine - Arroyo, PR

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11.1h).

Months with most sunshine are March, April, June, July and August (Average sunshine: 9h).
Months with least sunshine are October, November and December (Average sunshine: 7).

Average UV index - Arroyo, PR

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January and December (UV index 8).