September weather forecast
San Nicolas de Bari, Cuba

September, the first month of the autumn in San Nicolas de Bari, is still a hot month, with temperature in the range of an average low of 24.6°C (76.3°F) and an average high of 31.1°C (88°F).

Temperature

At the onset of September, San Nicolas de Bari records an average high-temperature of a still hot 31.1°C (88°F), showing little deviation from the preceding month. San Nicolas de Bari records an average nighttime low-temperature of 24.6°C (76.3°F) throughout September.

Heat index

The heat index value for September is appraised at a blistering 42°C (107.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

September is the most humid month, with an average relative humidity of 81%.

Rainfall

In San Nicolas de Bari, Cuba, in September, it is raining for 25.3 days, with typically 118mm (4.65") of accumulated precipitation. Throughout the year, in San Nicolas de Bari, there are 206.8 rainfall days, and 820mm (32.28") of precipitation is accumulated.

Daylight

In San Nicolas de Bari, the average length of the day in September is 12h and 16min.
On the first day of September in San Nicolas de Bari, sunrise is at 07:10 and sunset at 19:44. On the last day of the month, sunrise is at 07:19 and sunset at 19:15 CDT.

Sunshine

In September, the average sunshine in San Nicolas de Bari is 9h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.