The maximum temperature in Cayey is on average 29°C over the year, with values generally ranging between 27°C in March and 30°C in October. Precipitation is fairly high, with about 1,669 mm per year. It ranges from 61 mm in February to 228 mm in September.
The climate is suitable to travel to Cayey year-round. Nevertheless, the months when the weather is really pleasant are January, February, March, April, June, July and December.
For swimming, the most favorable period for water temperature is July, August, September, October and November, with a water temperature above 28.7°C.
For hiking and trekking, the best months are January, February, March and December.
In terms of crowd levels, the quietest periods are in October, while crowding is high in March, April, June, July, August, December, January and February.
