September weather forecast
Manzanillo, Cuba

Manzanillo's weather in September continues the warm and rainy pattern established during the summer months. Despite some of the year's highest rainfall, the city remains a popular destination due to its tropical allure. September sees the second-highest temperatures of the year, reaching up to 32.5°C (90.5°F). Charming weather prevails throughout the month, drawing locals and tourists to numerous recreational activities and sightseeing.

Temperature

September is marked by an average high-temperature of a still hot 32.5°C (90.5°F), almost identical to the preceding month. An average low-temperature of 23.6°C (74.5°F) marks the month of September.

Heat index

The heat index for September is appraised at a blazing hot 46°C (114.8°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in September in Manzanillo is 79%.

Rainfall

In Manzanillo, in September, it is raining for 23.8 days, with typically 88mm (3.46") of accumulated precipitation. Throughout the year, in Manzanillo, there are 216.6 rainfall days, and 605mm (23.82") of precipitation is accumulated.

Sea temperature

August and September, with an average sea temperature of 30.2°C (86.4°F), are months with the warmest seawater.
Note: The cool, rejuvenating sensation of water can be lacking when temperatures are beyond 30°C (86°F).

Daylight

In Manzanillo, the average length of the day in September is 12h and 15min.
On the first day of the month, sunrise is at 06:52 and sunset at 19:23. On the last day of September, in Manzanillo, sunrise is at 06:59 and sunset at 18:57 CDT.

Sunshine

In Manzanillo, the average sunshine in September is 11.1h.

UV index

March through October, with an average maximum UV index of 7, are months with the highest UV index in Manzanillo. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 7 suggests this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Watch out! Sand and water enhance the UV exposure you receive.