Port Antonio

Port Antonio Monthly Climate Data

Port Antonio’s rainfall pattern consists of two peak periods with higher values of rainfall and corresponding periods of lower rainfall amounts. The primary peak occurs in November and the secondary in May. The lowest amounts are at a minimum for the months of February and March. This is based on long term reports and deviations from this pattern do occur year to year. The hottest temperatures generally occur between the months of May and October.

The general monthly temperatures range between 19 and 31 degrees Celsius, however fluctuation between temperatures throughout the day must be taken into consideration.  Mornings tend to be the coolest time of day, with little or no rainfall. While late morning through late afternoon experiences a rise in temperature, with occasional showers with the peak hitting in the mid afternoon.  Early evening into night generally brings cooler temperatures with little or no rainfall.

The following chart shows the average monthly high and low temperatures as well as the average monthly rainfall amount for the Port Antonio area.

Port Antonio average monthly temperatures & rainfall amount
Month High (ºC) Low (ºC) Rainfall (mm)
January 28 19 284
February 28 19 159
March 29 19 116
April 29 20 171
May 30 21 286
June 31 22 242
July 31 22 212
August 31 22 299
September 31 22 239
October 30 22 371
November 29 21 397
December 29 21 266