September weather forecast
Cardenas, Cuba

In September, rainfall continue to be high reaching totals of approximately 94mm (3.7"). The temperatures remain essentially steady with high temperatures of 31.4°C (88.5°F) and the low lingering at 24.5°C (76.1°F). Despite the high temperatures, the increased cloud coverage and rain help to somewhat mitigate the intensity of the heat. Conditions start to slightly cool off towards the end of the month, signaling the gradual arrival of the fall season.

Temperature

The arrival of September marks a slight shift to an average high-temperature of a still hot 31.4°C (88.5°F) from August's 32.3°C (90.1°F). An average low-temperature of 24.5°C (76.1°F) marks the nights in Cardenas throughout September.

Heat index

For most parts of September, the heat index is calculated to be a blistering 42°C (107.6°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The most humid month in Cardenas, Cuba, is September, with an average relative humidity of 80%.

Rainfall

In Cardenas, Cuba, in September, it is raining for 21.7 days, with typically 94mm (3.7") of accumulated precipitation. Throughout the year, in Cardenas, there are 167.9 rainfall days, and 613mm (24.13") of precipitation is accumulated.

Daylight

In September, the average length of the day in Cardenas is 12h and 16min.
On the first day of the month, sunrise is at 07:07 and sunset at 19:41. On the last day of September, in Cardenas, sunrise is at 07:16 and sunset at 19:12 CDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.