September weather forecast
Matanzas, Cuba

Moving on to September, the city witnesses a slight relief from rain with a observable reduction to 95mm (3.74"). Nonetheless, the weather dynamics do not deviate dramatically from the prior summer months. The sea remains warm, and humidity slightly high, keeping the tropical climate sentiment very much alive in Matanzas, Cuba.

Temperature

Matanzas, Cuba, observes a minor difference in average high-temperatures between August's 32.1°C (89.8°F) and September's 31.2°C (88.2°F). Matanzas records a mean low-temperature of 24.1°C (75.4°F) in September.

Heat index

The heat index in September is evaluated at an extremely hot 42°C (107.6°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The most humid month in Matanzas is September, with an average relative humidity of 82%.

Rainfall

In Matanzas, during September, the rain falls for 23 days and regularly aggregates up to 95mm (3.74") of precipitation. In Matanzas, during the entire year, the rain falls for 204.4 days and collects up to 774mm (30.47") of precipitation.

Sea temperature

In Matanzas, the average seawater temperature in September is 29.5°C (85.1°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 07:08 and sunset at 19:43. On the last day of the month, sunrise is at 07:17 and sunset at 19:14 CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

The months with the highest UV index in Matanzas are April through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Caution! Sand and water surfaces escalate the UV intensity from the Sun.