The best times to visit Portmore for ideal weather are

late February and early March

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

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Portmore Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Portmore


    Average temperatures in Portmore vary barely at all and are too warm to be considered temperate for most. The area is in the bottom 1 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Portmore, the hottest months are July, June, and then August. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 90.8°F (32.7°C) with temperatures rarely dropping below 77.9°F (25.5°C) at night.

    Portmore Temperatures (Fahrenheit)


    Portmore Temperatures (Celsius)


    “Feels-Like” Temperatures

    The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

    Portmore Perceived Temperature (F)


    Portmore Perceived Temperature (C)



    Average Portmore Temperatures by Month

    Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

    Show Fahrenheit

    Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
    Jan 87.6 79.6 73.4
    Feb 87.4 79.3 73.2
    Mar 87 79.5 73.6
    Apr 88 81.3 75.5
    May 88.6 82.5 76.9
    Jun 89.8 83.7 78.4
    Jul 90.6 84 78.2
    Aug 90.4 83.6 77.9
    Sep 90.3 83.4 78
    Oct 89.8 82.6 77
    Nov 88.9 81.5 75.7
    Dec 87.7 80.1 74

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 30.9 26.4 23
    Feb 30.8 26.3 22.9
    Mar 30.6 26.4 23.1
    Apr 31.1 27.4 24.2
    May 31.4 28.1 24.9
    Jun 32.1 28.7 25.8
    Jul 32.6 28.9 25.7
    Aug 32.4 28.7 25.5
    Sep 32.4 28.6 25.6
    Oct 32.1 28.1 25
    Nov 31.6 27.5 24.3
    Dec 30.9 26.7 23.3

    Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

    Chance of Precipitation

    The graph below shows the % chance of rainy and snowy days in Portmore.

    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Portmore (in).

    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 7.1 0 0.01
    Feb 8.6 0 0.01
    Mar 11.4 0 0.03
    Apr 8.6 0 0.02
    May 15.7 0 0.08
    Jun 11.4 0 0.03
    Jul 10 0 0.05
    Aug 21.4 0 0.12
    Sep 18.6 0 0.08
    Oct 24.3 0 0.12
    Nov 14.3 0 0.07
    Dec 12.9 0 0.05

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 7.1 0 0.03
    Feb 8.6 0 0.03
    Mar 11.4 0 0.08
    Apr 8.6 0 0.05
    May 15.7 0 0.2
    Jun 11.4 0 0.08
    Jul 10 0 0.13
    Aug 21.4 0 0.3
    Sep 18.6 0 0.2
    Oct 24.3 0 0.3
    Nov 14.3 0 0.18
    Dec 12.9 0 0.13


    Humidity and Wind

    Portmore has slightly low to average humidity compared to most tourist destinations. The least humid month is January (60% relative humidity), and the most humid month is October (66.4%).

    Wind in Portmore is usually stronger than usual. The windiest month is June, followed by July and May. June’s average wind speed of around 11.6 knots (13.3 MPH or 21.5 KPH) is considered “moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late July where average top sustained speeds reach 22.2 knots, which is considered a strong breeze.

    Relative Humidity (%)

    The graph below shows the average % humidity by month in Portmore.

    Avg. Relative Humidity


    The graph below shows wind speed (max and average) in knots.

    Max Sustained Wind
    Average Daily Wind

    Average Wind Speeds

    Show Wind Speeds

    All wind speeds are in knots.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 7.7 a gentle breeze 16.7 a moderate breeze
    Feb 8.2 a gentle breeze 17.3 a fresh breeze
    Mar 8.1 a gentle breeze 17 a moderate breeze
    Apr 8.9 a gentle breeze 18.2 a fresh breeze
    May 9.2 a gentle breeze 18.7 a moderate breeze
    Jun 11.6 a moderate breeze 21.3 a fresh breeze
    Jul 10.6 a gentle breeze 21.4 a moderate breeze
    Aug 9 a gentle breeze 19.2 a fresh breeze
    Sep 7.6 a gentle breeze 16.9 a moderate breeze
    Oct 6.8 a light breeze 15.6 a moderate breeze
    Nov 7 a gentle breeze 15.1 a moderate breeze
    Dec 7.8 a gentle breeze 16.3 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 60
    Feb 61
    Mar 61.1
    Apr 62.8
    May 63.2
    Jun 62.6
    Jul 61.4
    Aug 64
    Sep 64
    Oct 66.4
    Nov 63.8
    Dec 61.5


    Is it Safe to Travel to Portmore?

    As of 5/19/2017 there are travel warnings for Jamaica; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.

    Overall Portmore Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel warm. Highs range from 89.1°F (31.7°C) and 86.7°F (30.4°C) with warmer temperatures in the later months. Spring is slow/unreported for tourism, which makes it a good time for those looking for deals.

    Summer (June through August)

    The middle-year months have hot weather with high temperatures that are quite warm. June – August is slow/unreported season for tourism in Portmore, so lodging and other accommodations may cost as much as usual.

    Fall (September through November)

    Fall daily highs range from 90.8°F (32.7°C) and 88.3°F (31.3°C), which will feel warmer than comfortable given the humidity and wind. Tourism is slow/unreported during these months due to the weather, so hotels may be normally priced.

    Winter (December through February)

    Weather is perfect this time of year in Portmore to be enjoyable for warm weather travelers. The average high during this season is between 88.1°F (31.2°C) and 86.8°F (30.4°C). These times of year are slow/unreported with tourists.


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