September weather forecast
Sao Arriba, Cuba

The first month of the autumn, September, is still a hot month in Sao Arriba, Cuba, with temperature in the range of an average low of 23.1°C (73.6°F) and an average high of 32.4°C (90.3°F).

Temperature

As Sao Arriba steps into September, the average high-temperature is measured at a still hot 32.4°C (90.3°F), displaying minor differences from August's 33.6°C (92.5°F). The nights of September in Sao Arriba anticipate an average low-temperature of 23.1°C (73.6°F).

Heat index

The heat index value during September is appraised at a life-threatening hot 46°C (114.8°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Sao Arriba, the average relative humidity in September is 80%.

Rainfall

In Sao Arriba, during September, the rain falls for 14.2 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, in Sao Arriba, there are 150.7 rainfall days, and 261mm (10.28") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 06:48 and sunset at 19:20. On the last day of September, sunrise is at 06:55 and sunset at 18:53 CDT.

Sunshine

In Sao Arriba, Cuba, the average sunshine in September is 10.9h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.