September weather forecast
Orange Bay, Jamaica

The first month of the autumn, September, is also a moderately hot month in Orange Bay, Jamaica, with an average temperature varying between 29.8°C (85.6°F) and 27.9°C (82.2°F).

Temperature

With the onset of September, Orange Bay's average high-temperature clocks in at a moderately hot 29.8°C (85.6°F), showing a minor fluctuation from the previous month. September registers an average low temperature of 27.9°C (82.2°F), subtly lower than the daytime maximum.

Heat index

September's average heat index is calculated to be a fiery hot 36°C (96.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Orange Bay, in September, it is raining for 22.1 days, with typically 93mm (3.66") of accumulated precipitation. In Orange Bay, Jamaica, during the entire year, the rain falls for 236.8 days and collects up to 822mm (32.36") of precipitation.

Daylight

In September, the average length of the day in Orange Bay is 12h and 14min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:27. On the last day of September, in Orange Bay, sunrise is at 06:03 and sunset at 18:02 EST.

Sunshine

In Orange Bay, the average sunshine in September is 9.7h.

UV index

The months with the highest UV index in Orange Bay are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Orange Bay. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.