August weather forecast
Port Royal, Jamaica

August in Port Royal, Jamaica marks the continued persistence of high temperatures, abundant rainfall, and sea warmth. Even though the overall temperature drops slightly, the city continues to encounter defined summer hits. The weather consistently exhibits a high of 30.1°C (86.2°F), teamed with a sustaining rainfall of 131mm (5.16"). The sea temperature soars to 29.4°C (84.9°F), warmest in the year, inviting beachgoers to bask in the sea waters. Cloud cover consolidates with increased rainfall, but day-to-day weather continues to boast a tropical window.

Temperature

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

Heat index

The heat index value during August is appraised at a fiery hot 38°C (100.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Port Royal, in August, during 27.8 rainfall days, 131mm (5.16") of precipitation is typically accumulated. In Port Royal, during the entire year, the rain falls for 310.9 days and collects up to 1286mm (50.63") of precipitation.

Sea temperature

In August, the average sea temperature in Port Royal is 29.4°C (84.9°F).
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

In Port Royal, the average length of the day in August 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, sunrise is at 05:53 and sunset at 18:21 EST.

Sunshine

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

UV index

The months with the highest UV index are June through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 7 in August translates into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heads up! UV intensity is amplified by reflections from water and sand.