September weather forecast
Gaspar, Cuba

September, the first month of the autumn in Gaspar, is still a tropical month, with an average temperature ranging between max 31.5°C (88.7°F) and min 23.7°C (74.7°F).

Temperature

The shift from August to September is characterized by an average high-temperature of a still hot 31.5°C (88.7°F), not significantly different from the 32.8°C (91°F) of August. Gaspar's nighttime temperature in September falls to an average of 23.7°C (74.7°F).

Heat index

In September, the average heat index is calculated to be a scorching 43°C (109.4°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

September and October, with an average relative humidity of 82%, are the most humid months.

Rainfall

In September, the rain falls for 22.4 days. Throughout September, 88mm (3.46") of precipitation is accumulated. Throughout the year, there are 174.8 rainfall days, and 625mm (24.61") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of the month, sunrise is at 06:57 and sunset at 19:30. On the last day of September, in Gaspar, sunrise is at 07:05 and sunset at 19:02 CDT.

Sunshine

In Gaspar, the average sunshine in September is 9.5h.

UV index

March through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.