May weather forecast
Jamaica

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Weather in May

May brings a significant shift in Jamaica's weather patterns, marking the beginning of the wet season. Temperatures in the plains during this month continue their upward trend from April, regularly reaching 30°C (86°F) during the day. Despite the increase, the heat remains tolerable, allowing for a range of outdoor activities.

Night-time temperatures in the plains continue to stay above 21.1°C (70°F), offering warm and comfortable evenings. In the highlands, particularly in areas such as the Blue Mountains, cooler temperatures persist, with averages ranging between 15°C (59°F) and 22.2°C (72°F), providing a refreshing contrast to the warmer coastal regions.

As May ushers in the wet season, precipitation levels see a significant increase compared to April. Despite this rise, showers are often intermittent and concentrated in the afternoon, allowing plenty of opportunities for outdoor exploration during the earlier part of the day.

Sunshine hours in May remain generous, with around 8 hours of bright sunshine per day. This provides ample time for visitors to enjoy the beautiful beaches, such as those in Negril and Montego Bay, before afternoon showers roll in.

Wind speeds during May typically range from 19.3km/h (12mph) to 24.1km/h (15mph), with winds often picking up ahead of afternoon showers. The Norte winds from the United States have largely ceased by this time of year, resulting in warmer evenings.

  • Kingston - May »
    In Kingston in May, the average water temperature is 28.1°C (82.6°F). May brings the onset of the rainy season in Kingston, with some of the highest rainfall measurements of the year.
  • Montego Bay - May »
    On the last day of the month, in Montego Bay sunrise is at 05:34 and sunset at 18:44 EST. In Montego Bay, during May, the rain falls for 12 days and regularly aggregates up to 255mm (10.04") of precipitation.
  • Portmore - May »
    Despite the intense rainfall, the warm temperature, coupled with relative humidity, creates a tropical climate that Portmore is renowned for. In May, Portmore, Jamaica witnesses a significant rise in the quantity of rainfall, reaching as much as 154mm (6.06"), rendering it the month with the highest rainfall so far in the year.
  • Mandeville - May »
    In Mandeville, Jamaica, in May, during 27.7 rainfall days, 174mm (6.85") of precipitation is typically accumulated. In May, the average heat index, which represents the influence of relative humidity on air temperature, is calculated to be 34°C (93.2°F).
  • Old Harbour - May »
    For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable. On the first day of May in Old Harbour, sunrise is at 05:41 and sunset at 18:29.
  • Port Antonio - May »
    May ushers in the wet season in Port Antonio with the annual highest rainfall of 276mm (10.87") spread over an increased number of rainy days. As Port Antonio ushers in May, the high temperature records at a still hot 30°C (86°F), matching the readings of the prior month.
  • Saint Ann's Bay - May »
    May, June, November and December, with an average relative humidity of 79%, are most humid months in Saint Ann's Bay, Jamaica. On the last day of the month, in Saint Ann's Bay sunrise is at 05:31 and sunset at 18:41 EST.
  • Bog Walk - May »
    May brings in more heat, warmer evenings and substantial rainfall, making it the wettest month of the year in Bog Walk. In Bog Walk during May, the rain falls for 25.4 days and regularly aggregates up to 94mm (3.7") of precipitation.
  • Constant Spring - May »
    In Constant Spring, during May, the rain falls for 27.5 days and regularly aggregates up to 154mm (6.06") of precipitation. In Constant Spring, during May, the rain falls for 27.5 days and regularly aggregates up to 154mm (6.06") of precipitation.
  • Ewarton - May »
    The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. In Ewarton, Jamaica, during May, the rain falls for 25.4 days and regularly aggregates up to 94mm (3.7") of precipitation.
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