September weather forecast
Sancti Spiritus, Cuba

Coming into September, Sancti Spiritus anticipates a slight cooling trend alongside a minor decrease in rainfall. However, it continues to be the wettest part of the year, featuring a high amount of rainfall amounting to 115mm (4.53"). The wind speeds remain consistent, ensuring a cool and breezy atmosphere. The temperature starts to decline, signaling the onset of the cooler autumn season. Stepping into October, look forward to further decreases in temperature and rainfall.

Temperature

Sancti Spiritus, Cuba, experiences a subtle adjustment in high-temperatures to a still tropical 30.8°C (87.4°F) with the onset of September, maintaining near parity with August's 31.8°C (89.2°F). Sancti Spiritus records an average low-temperature of 22.7°C (72.9°F) throughout the month of September.

Heat index

The heat index value for September is evaluated at a scorching 42°C (107.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The months with the highest humidity in Sancti Spiritus are September and October, with an average relative humidity of 85%.

Rainfall

In Sancti Spiritus, in September, during 23.5 rainfall days, 115mm (4.53") of precipitation is typically accumulated. In Sancti Spiritus, during the entire year, the rain falls for 207.3 days and collects up to 925mm (36.42") of precipitation.

Daylight

The average length of the day in September in Sancti Spiritus, Cuba, is 12h and 16min.
On the first day of September, sunrise is at 07:01 and sunset at 19:34. On the last day of the month, sunrise is at 07:09 and sunset at 19:06 CDT.

Sunshine

The average sunshine in September in Sancti Spiritus is 8.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Sancti Spiritus. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during September leads to these advisories:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.