September weather forecast
Unity Hall, Jamaica

September, the first month of the autumn in Unity Hall, is still a warm month, with temperature in the range of an average low of 26.7°C (80.1°F) and an average high of 29.5°C (85.1°F).

Temperature

Upon the onset of September, Unity Hall witnesses an average high-temperature of a still moderately hot 29.5°C (85.1°F), showing a close resemblance to the prior month. September nights in Unity Hall, Jamaica, document an average temperature reading of 26.7°C (80.1°F).

Heat index

The heat index for September is computed to be a very hot 35°C (95°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in September in Unity Hall, Jamaica, is 76%.

Rainfall

In Unity Hall, Jamaica, during September, the rain falls for 18.4 days and regularly aggregates up to 88mm (3.46") of precipitation. Throughout the year, in Unity Hall, there are 177.2 rainfall days, and 687mm (27.05") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:25. On the last day of September, sunrise is at 06:02 and sunset at 18:00 EST.

Sunshine

The average sunshine in September is 10.3h.

UV index

The months with the highest UV index are January, March through December, 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 rays for the average person.
Note: In September, an average UV index of 7 transforms into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.