September weather forecastSayil, Mexico

Weather in September

The first month of the autumn, September, is also a hot month in Sayil, Mexico, with an average temperature fluctuating between 23.3°C (73.9°F) and 33.6°C (92.5°F).

Temperature

A minimal variation is noted in Sayil's average high-temperature at the onset of September, reaching a tropical 33.6°C (92.5°F) from August's 35°C (95°F). Throughout the nights in September, Sayil experiences an average low-temperature of 23.3°C (73.9°F).

Heat index

September's average heat index is calculated to be a blazing hot 49°C (120.2°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the highest humidity are September and October, with an average relative humidity of 78%.

Rainfall

In Sayil, in September, it is raining for 20.4 days, with typically 70mm (2.76") of accumulated precipitation. Throughout the year, in Sayil, there are 167.3 rainfall days, and 536mm (21.1") of precipitation is accumulated.

Daylight

In Sayil, the average length of the day in September is 12h and 15min.
On the first day of the month, sunrise is at 5:43 am and sunset at 6:13 pm. On the last day of September, in Sayil, sunrise is at 5:49 am and sunset at 5:47 pm CST.

Sunshine

In Sayil, the average sunshine in September is 9.4h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.