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Jamaica Monthly Weather Averages: Rain, Temperatures

This video explains the best time to visit Jamaica and avoid the annual hurricane season.
Full-Screen Version | YouTube Caribbean Channel

Jamaica’s average monthly weather is dry in the winter and wet in the fall.

This popular Caribbean island is so dry during the winter and spring that it attracts numerous ships on western Caribbean cruises. It also appeals to northerners who want to get away from snow and cold temperatures.

Cruise visitors usually go to Ocho Rios or Montego Bay on the north coast of the island. More recently, Falmouth has become another active port. Resort visitors also flock to Montego Bay along with Negril on the western tip.

Thirty years of average monthly weather data for Montego Bay and Kingston, capital of Jamaica, can provide some clues on the best and worst months for weather.

Jamaica Monthly Temperatures

Montego Bay Monthly Weather
MonthAvg TempoFTotal RainRain Days
Daily
Min
Daily
Max
Jan698239
Feb68.782.838
Mar69.683.815
Apr71.48527
May72.786.4412
Jun73.687.6510
Jul74.38827
Aug74.588.5410
Sep73.688512
Oct73.686.7713
Nov7385.5411
Dec71.483.149

Montego Bay’s monthly temperatures range from the low 80s Fahrenheit or high 20s Celsius in the winter to the high 80s Fahrenheit or low 30s Celsius during the summer, according to the Jamaica Tourist Board.

December through March has an average high of about 83 Fahrenheit or 28 Celsius. That’s comfortably warm for any land activities.

But nighttime temperatures drop low enough to make seawater cool in the mornings, especially with a wind chill factor from trade winds. The average low temperature ranges reaches 69 degrees Fahrenheit or about 21 Celsius in January.

It climbs to about 75 Fahrenheit or about 24 Celsius from May through September, which is ideal for comfortable water temperatures during the day.

Average daytime high temperatures reach nearly 90 Fahrenheit or 32 Celsius during the same late spring to early fall months. They make Jamaica one of the hottest destinations in the Caribbean.

• Jamaica weather in January - February - March - April - May - June - July - August - September - October - November - December.

Rainfall

Kingston Monthly Weather
MonthAvg TempoFTotal RainRain Days
Daily
Min
Daily
Max
Jan 70.0 86.5 1 5
Feb69.8 86.4 1 5
Mar 70.9 87.3 1 5
Apr72.7 88.0 27
May 74.5 88.9 4 8
Jun75.6 89.8 3 7
Jul 75.7 91.0 2 6
Aug75.6 90.9 4 9
Sep 75.2 89.8 5 11
Oct74.1 89.1 7 14
Nov 73.0 88.2 3 10
Dec71.2 87.1 2 6

Montego Bay historically has about one inch of rain in March, the driest month of the year.

April and July are the next driest at two inches, followed by January and February at three inches.

The area has a brief rainy season in May and June with about four to five inches of rain. Rainfall often drops in July and starts to climb again until it reaches a high point in October during the peak of the Caribbean hurricane season.

March also has the fewest number of days that it rains each each with an average of five. April and July again are the next best with seven, followed by December through February with eight to nine.

Months with the highest number of rain days are May and September through November.

Temperature averages are fairly consistent over time, but actual rainfall each year may vary greatly versus past years.

Anyone planning a Caribbean vacation should keep Jamaica’s average weather in mind when choosing the best months to go. But they also should know that actual rainfall may be much more or much less than past totals.

Scott S. Bateman is a professional journalist who has traveled widely throughout the Caribbean and the Americas. He is the author of four books about cruising in the Caribbean, Alaska and Mexican Riviera.
November 03, 2021

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