September weather forecast
Cascade, Jamaica

As Autumn sets foot, September unveils a weather pattern that oscillates between rain showers and comfortable temperatures. Rainfall makes its mark, peaking at 88mm (3.46") over 18.4 days, the highest for the year. Despite the dip in daylight hours and a slight reduction in temperature, Cascade's tropical climate retains its charisma. As showers mellow down, Cascade's soothing weather induces a sense of tranquillity.

Temperature

As Cascade transitions from August to September, the average high-temperatures adjust to a still warm 29.5°C (85.1°F), nearly the same as the previous 29.7°C (85.5°F). Cascade registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 26.7°C (80.1°F) during September.

Heat index

For September, the heat index is estimated at a very hot 35°C (95°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In September, the rain falls for 18.4 days. Throughout September, 88mm (3.46") of precipitation is accumulated. In Cascade, during the entire year, the rain falls for 177.2 days and collects up to 687mm (27.05") of precipitation.

Daylight

In Cascade, Jamaica, the average length of the day in September is 12h and 14min.
On the first day of September, sunrise is at 05:57 and sunset at 18:26. On the last day of the month, sunrise is at 06:02 and sunset at 18:01 EST.

Sunshine

In September, the average sunshine 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 vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 7 in September translates into these instructions:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.