August weather forecast
Portmore, Jamaica

In August, Portmore witnesses a slight downturn in temperature; however, it still remains significantly warm. The trend of substantial rainfall continues from July, making it a wet month. It is a time of noticeable humidity, complimented by the consistent wind across the city which lightens the atmosphere. While August offers plenty of sun-soaked hours, carrying an umbrella might be wise, given the persistent rain showers. The sea temperature remains comfortable for water-based activities.

Temperature

August is the warmest month, with an average high-temperature of 30.3°C (86.5°F) and an average low-temperature of 24.2°C (75.6°F).

Heat index

The heat index value for August is appraised at a fiery hot 38°C (100.4°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Portmore, in August, it is raining for 27.8 days, with typically 131mm (5.16") of accumulated precipitation. Throughout the year, there are 310.9 rainfall days, and 1286mm (50.63") of precipitation is accumulated.

Sea temperature

In Portmore, Jamaica, in August, the average water temperature is 29.4°C (84.9°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

In August, the average length of the day in Portmore is 12h and 43min.
On the first day of the month, sunrise is at 05:46 and sunset at 18:41. On the last day of August, in Portmore, Jamaica, sunrise is at 05:53 and sunset at 18:22 EST.

Sunshine

August and September, with an average of 10.8h of sunshine, are months with the most sunshine.

UV index

June through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be wary! Reflections from sand and water make UV radiation more intense.