September weather forecast
Arroyo Naranjo, Cuba

September, the first month of the autumn in Arroyo Naranjo, is also a hot month, with an average temperature ranging between max 31.5°C (88.7°F) and min 24.1°C (75.4°F).

Temperature

September's average high-temperature is a still hot 31.5°C (88.7°F), maintaining a close comparison with August's 32.4°C (90.3°F). Arroyo Naranjo cools down to an average low-temperature of 24.1°C (75.4°F) throughout the month of September.

Heat index

September's mean heat index is estimated at a blisteringly hot 43°C (109.4°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

September and October, with an average relative humidity of 80%, are the most humid months in Arroyo Naranjo.

Rainfall

In September, in Arroyo Naranjo, the rain falls for 25.2 days. Throughout September, 105mm (4.13") of precipitation is accumulated. Throughout the year, there are 204.8 rainfall days, and 802mm (31.57") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of September in Arroyo Naranjo, sunrise is at 07:11 and sunset at 19:46. On the last day of the month, sunrise is at 07:20 and sunset at 19:17 CDT.

Sunshine

In September, the average sunshine in Arroyo Naranjo is 8.9h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 7 in September translates into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.