June weather forecast
Portmore, Jamaica

June is characterized by a further elevation in Portmore's temperatures, making it one of the hottest months of the year. The city experiences its peak temperature, however, the gush of wind with speed hovering around 12.8km/h (8mph) offers a refreshing reprieve. The trend of intense rainfall continues, making it a preferable month for tourists seeking a tropical, rain-filled vacation. Despite the rain, clear days remain abundant, making time for beach and other outdoor activities. As the city steers into mid-year, the marine climate remains moderate and conducive for swimming.

Temperature

Portmore's transition from May to June introduces an average high-temperature of a still moderately hot 29.3°C (84.7°F), marking an insignificant variation from the 28.7°C (83.7°F). During the nights in June, the temperature in Portmore, Jamaica, averages to a still warm 24°C (75.2°F).

Heat index

The average heat index in June is appraised at a sweltering 36°C (96.8°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in June in Portmore is 81%.

Rainfall

In Portmore, in June, it is raining for 26.1 days, with typically 122mm (4.8") of accumulated precipitation. Throughout the year, in Portmore, there are 310.9 rainfall days, and 1286mm (50.63") of precipitation is accumulated.

Sea temperature

In Portmore, in June, the average water temperature is 28.4°C (83.1°F).
Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

June has the longest days of the year in Portmore, with an average of 13h and 12min of daylight.
On the first day of the month, sunrise is at 05:31 and sunset at 18:39. On the last day of June, sunrise is at 05:35 and sunset at 18:47 EST.

Sunshine

In June, the average sunshine is 9.7h.

UV index

June through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 7 in June translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.