September weather forecast
Guatemala, Cuba

The first month of the autumn, September, is still a hot month in Guatemala, Cuba, with an average temperature ranging between max 31°C (87.8°F) and min 22.8°C (73°F).

Temperature

The average high-temperature for September is a still hot 31°C (87.8°F), closely aligning with the temperature of the preceding month. During September, Guatemala's temperature averages to a pleasant 22.8°C (73°F) at night.

Heat index

September's average heat index is calculated to be a blistering 42°C (107.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Guatemala, the average relative humidity in September is 82%.

Rainfall

The months with the most rainfall are May and September, with an average 114mm (4.49") of precipitation.

Daylight

The average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 06:46 and sunset at 19:18. On the last day of the month, sunrise is at 06:53 and sunset at 18:51 CDT.

Sunshine

In September, the average sunshine in Guatemala, Cuba, is 10.7h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Guatemala, Cuba. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.