September weather forecast
Bartle, Cuba

September, the first month of the autumn in Bartle, is still a hot month, with an average temperature fluctuating between 22.9°C (73.2°F) and 32.3°C (90.1°F).

Temperature

Bartle experiences a minor change to a still tropical 32.3°C (90.1°F) in average high-temperature during September, closely reflecting August. Nightly temperatures drop to an average low of 22.9°C (73.2°F) in September.

Heat index

The heat index value during September is appraised at a burning hot 47°C (116.6°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Bartle, the average relative humidity in September is 83%.

Rainfall

September is the month with the most rainfall. Rain falls for 22 days and accumulates 127mm (5") of precipitation.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September, sunrise is at 06:52 and sunset at 19:24. On the last day of the month, sunrise is at 06:59 and sunset at 18:56 CDT.

Sunshine

In Bartle, the average sunshine in September is 10.4h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.