September weather forecastKnockpatrick, Jamaica

Weather in September

The first month of the autumn, September, is still a warm month in Knockpatrick, Jamaica, with an average temperature ranging between min 21.8°C (71.2°F) and max 29.3°C (84.7°F).

Temperature

In September, Knockpatrick notes an average high-temperature of a moderately hot 29.3°C (84.7°F), hardly different from the preceding month. Nighttime temperature in Knockpatrick, Jamaica, lowers to an average of 21.8°C (71.2°F) in September.

Heat index

During September, the heat index is evaluated at a fiery hot 37°C (98.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In September, the average relative humidity is 85%.

Rainfall

In Knockpatrick, 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

In September, the average length of the day 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, sunrise is at 06:00 and sunset at 17:59 EST.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during September leads to these advisories:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.