September weather forecast
Ulster Spring, Jamaica

September, the first month of the autumn in Ulster Spring, is also a moderately hot month, with an average temperature ranging between min 21.8°C (71.2°F) and max 29.3°C (84.7°F).

Temperature

With the advent of September, Ulster Spring's high-temperatures adjust to a moderately hot 29.3°C (84.7°F), closely aligning with the preceding month. During September, the nighttime temperature averages of 21.8°C (71.2°F).

Heat index

For most parts of September, the heat index is estimated at a torrid 37°C (98.6°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in September is 85%.

Rainfall

In September, the rain falls for 27.3 days. Throughout September, 190mm (7.48") of precipitation is accumulated. Throughout the year, in Ulster Spring, there are 297.9 rainfall days, and 1472mm (57.95") of precipitation is accumulated.

Daylight

In Ulster Spring, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:24. 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 in Ulster Spring is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 during September leads to these advisories:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.