August weather forecast
Black River, Jamaica

August continues to ride the wave of high summer temperatures, sticking to a band between 21.9°C (71.4°F) and unchanged 30°C (86°F). Notably, the sea temperature rises to its peak, making it a great time for water enthusiasts. Despite the season, rainfall acquires its highest frequency, recording 145mm (5.71") this month. Wind speeds also recede slightly from July's peak. Above all, the prolonged daylight helps extend outdoor fun.

Temperature

Black River's temperatures tend to reach their peak averages in August, with a high of 30°C (86°F) and a low of 21.9°C (71.4°F).

Heat index

The heat index value during August is estimated at a sweltering 38°C (100.4°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In August, the average relative humidity is 82%.

Rainfall

In Black River, in August, it is raining for 25.2 days, with typically 145mm (5.71") of accumulated precipitation. Throughout the year, there are 297.9 rainfall days, and 1472mm (57.95") of precipitation is accumulated.

Sea temperature

In Black River, the average seawater temperature in August is 29.7°C (85.5°F).
Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.

Daylight

In Black River, the average length of the day in August is 12h and 43min.
On the first day of the month, sunrise is at 05:50 and sunset at 18:45. On the last day of August, in Black River, sunrise is at 05:57 and sunset at 18:25 EST.

Sunshine

The months with the most sunshine are July and August, with an average of 10.4h of sunshine.

UV index

In Black River, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the UV index of 6 transforms into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.