September weather forecast
Newport, Jamaica

September, the first month of the autumn in Newport, is still a warm month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 29.3°C (84.7°F).

Temperature

The onset of September notes an average high-temperature of a moderately hot 29.3°C (84.7°F), subtly shifted from August's 30°C (86°F). Newport records a mean low-temperature of 21.8°C (71.2°F) in September.

Heat index

In September, the heat index is evaluated at a very hot 37°C (98.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in September is 85%.

Rainfall

In Newport, in September, it is raining for 27.3 days, with typically 190mm (7.48") of accumulated precipitation. In Newport, during the entire year, the rain falls for 297.9 days and collects up to 1472mm (57.95") of precipitation.

Daylight

In September, the average length of the day in Newport, Jamaica, is 12h and 14min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:23. On the last day of September, in Newport, sunrise is at 06:00 and sunset at 17:59 EST.

Sunshine

In September, the average sunshine in Newport, Jamaica, is 9.8h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 suggests this advice:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.