September weather forecast
Vinales, Cuba

September stays true to the tropical climate of Vinales, showcasing a blend of high temperatures, rain, and high humidity. Temperatures begin to retreat ever-so-slightly, forming a range from 24.2°C (75.6°F) to 31.2°C (88.2°F). Despite a drop in rainfall compared to August, waterlogging due to past rains might be observed. Daylight hours start to contract, indicating the slow but steady approach of the fall season. Amidst changing conditions, windspeed is a constant, complementing the subtly transitioning weather.

Temperature

The average high-temperature during September is a still hot 31.2°C (88.2°F), almost matching the conditions of the preceding month. Vinales in September experiences a low-temperature average of 24.2°C (75.6°F).

Heat index

For most parts of September, the heat index is estimated at a blistering 42°C (107.6°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely vital to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in September is 80%.

Rainfall

In September, the rain falls for 25.9 days. Throughout September, 104mm (4.09") of precipitation is accumulated. Throughout the year, there are 211.9 rainfall days, and 823mm (32.4") of precipitation is accumulated.

Daylight

In Vinales, the average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 07:17 and sunset at 19:51. On the last day of the month, sunrise is at 07:26 and sunset at 19:22 CDT.

Sunshine

In Vinales, the average sunshine in September is 9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.