September weather forecast
Banks, Jamaica

The first month of the autumn, September, is still a tropical month in Banks, Jamaica, with an average temperature ranging between max 30.4°C (86.7°F) and min 22.9°C (73.2°F).

Temperature

The transition into September shows a subtle variation to a still tropical 30.4°C (86.7°F) from August's 31.1°C (88°F) in the average high-temperature. Banks's average low-temperature for the month of September records at an agreeable 22.9°C (73.2°F).

Heat index

The average heat index in September is calculated to be a sweltering 39°C (102.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Banks, the average relative humidity in September is 81%.

Rainfall

In September, the rain falls for 25.9 days. Throughout September, 132mm (5.2") of precipitation is accumulated. In Banks, Jamaica, during the entire year, the rain falls for 279.6 days and collects up to 947mm (37.28") of precipitation.

Daylight

In Banks, 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 18:22. On the last day of the month, sunrise is at 05:59 and sunset at 17:58 EST.

Sunshine

In September, the average sunshine is 11.1h.

UV index

The months with the lowest UV index in Banks are January through April, September through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 6 in September translates into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.