September weather forecast
Falmouth, Jamaica

September initiates a downward bend to the temperature curve in Falmouth, yet the weather remains warm. The rainfall peaks yet again, which is typical for the hurricane season. Even the number of sunshine hours and days experience a small reduction in this period. In September, the rainfall reaches 88mm (3.46") extending over an 18.4-day period. Despite the heightened wet conditions, the sea temperature remains comfortably high throughout the month.

Temperature

September's beginning signals an average high-temperature of a still moderately hot 29.5°C (85.1°F), barely different from August's 29.7°C (85.5°F). The temperature in Falmouth during September experiences a small drop from daytime peaks, recording an average of 26.7°C (80.1°F) at night.

Heat index

September's heat index is appraised at a sweltering 35°C (95°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Heat index details are generally centered around shaded locations and a mild breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September in Falmouth is 76%.

Rainfall

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

Sea temperature

The month with the warmest seawater is September, with an average sea temperature of 29.8°C (85.6°F).
Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations.

Daylight

In September, the average length of the day in Falmouth is 12h and 14min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:24. On the last day of September, sunrise is at 06:01 and sunset at 17:59 EST.

Sunshine

The average sunshine in September is 10.3h.

UV index

January, March through December, with an average maximum UV index of 7, are months with the highest UV index in Falmouth, Jamaica. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.