The maximum temperature in Arecibo is on average 28°C over the year, with values generally ranging between 27°C in March and 30°C in September. Precipitation is fairly high, with about 1,655 mm per year. It ranges from 47 mm in February to 240 mm in May.
The weather is pleasant to stay to Arecibo in: January, February, March, April, June, July and December. However, the period when the weather is truly ideal is January, February and December.
For swimming, the most favorable period for water temperature is July, August, September, October and November, with a water temperature above 28.5°C.
However, the best time to fully enjoy the beach and swimming is January, February, March, April, June, July, November and December.
Water sports are particularly favorable in: January, February, March, April, June, July, November and December. For scuba diving and snorkeling, the best months are January, February, March, April, June, July, November and December.
For hiking and trekking, the best months are January, February and December.
In terms of crowd levels, the quietest periods are in September, while crowding is high in January, February, July, November and December.
