September weather forecastFrankfield, Jamaica

Weather in September

September in Frankfield marks the culmination of the rainy season with a whopping 190mm (7.48") precipitation spread over 27.3 days. Despite the high rainfall, temperatures stay steady between 21.8 and 29.3°C (84.7°F). The rate of humidity increases slightly to 85%, arguably due to the heavy rains. However, the 12.2 daylight hours continue to hold sway, painting a sunny complexion on the otherwise rain-washed cityscape.

Temperature

The arrival of September denotes a barely perceptible change in the average high-temperatures to a moderately hot 29.3°C (84.7°F) from August's 30°C (86°F). In September, the average low-temperature is a pleasant 21.8°C (71.2°F).

Heat index

The heat index for September is calculated to be a very hot 37°C (98.6°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Frankfield, the average relative humidity in September is 85%.

Rainfall

In Frankfield, in September, it is raining for 27.3 days, with typically 190mm (7.48") of accumulated precipitation. Throughout the year, there are 297.9 rainfall days, and 1472mm (57.95") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of September, sunrise is at 05:55 and sunset at 18:23. On the last day of the month, sunrise is at 05:59 and sunset at 17:58 EST.

Sunshine

The average sunshine in September is 9.8h.

UV index

In Frankfield, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.