September weather forecast
Chemax, Mexico

The first month of the autumn, September, is also a hot month in Chemax, Mexico, with an average temperature fluctuating between 22.5°C (72.5°F) and 33.2°C (91.8°F).

Temperature

The commencement of September records an average high-temperature of a still tropical 33.2°C (91.8°F), barely varying from August's 34.5°C (94.1°F). In the month of September, an average of 22.5°C (72.5°F) marks the low-temperature in Chemax.

Heat index

The heat index for September is calculated to be a blazing hot 50°C (122°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

September and October, with an average relative humidity of 82%, are the most humid months in Chemax.

Rainfall

In Chemax, Mexico, in September, during 23.8 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Chemax, during the entire year, the rain falls for 195.8 days and collects up to 599mm (23.58") of precipitation.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of September, sunrise is at 5:35 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 5:40 pm CST.

Sunshine

In Chemax, the average sunshine in September is 7.9h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 during September translates into the following guidance:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.