September weather forecast
Nain, Jamaica

September, the first month of the autumn in Nain, is also a moderately hot 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 transition into September shows a subtle variation to a warm 29.3°C (84.7°F) from August's 30°C (86°F) in the average high-temperature. During the nights in September, Nain experiences a consistent average temperature of 21.8°C (71.2°F).

Heat index

The heat index for September is computed to be a torrid 37°C (98.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Consider that heat index readings are for situations in the shade and light wind. 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 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in September is 85%.

Rainfall

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

Daylight

The average length of the day in September is 12h and 14min.
On the first day of September, sunrise is at 05:56 and sunset at 18:24. On the last day of the month, sunrise is at 06:00 and sunset at 17:59 EST.

Sunshine

In September, the average sunshine in Nain is 9.8h.

UV index

In Nain, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.