Climate averages 1991–2020

Weather in Jamaica.

ClimaNote covers 4 cities in Jamaica, starting with Kingston, Spanish Town and Portmore. Open a city for charts and a table of all 12 months.

Across these cities the yearly average high ranges from 29.7°C in Spanish Town (tied with Portmore) to 30.8°C in Montego Bay, and yearly rainfall from 813 mm in Kingston (tied with Spanish Town and Portmore) to 1,442 mm in Montego Bay. The hottest city-month is July in Montego Bay, with an average high of 32.4°C, and the coolest is January in Portmore, at 28.2°C. By single month, the most rain falls in May in Montego Bay, with 220 mm, and the least in January in Spanish Town, with 17 mm (tied with February in Spanish Town, January in Portmore and February in Portmore).

July is the warmest month in every city; January is the coolest in every city. October is the wettest month in 3 cities and May in 1; February is the driest in 2 cities (in 2 other cities two or more months tie). None of these cities has a month with an average high below 2.0°C, a month with under 1 mm of rain or a month with more than 300 mm of rain.