September weather forecast
Chumayel, Mexico

The first month of the autumn, September, is still a tropical month in Chumayel, Mexico, with an average temperature varying between 23.3°C (73.9°F) and 33.6°C (92.5°F).

Temperature

Chumayel's shift into September is marked by a subtle change to a hot 33.6°C (92.5°F) from August's 35°C (95°F) in temperature. Throughout September, an average nighttime temperature of 23.3°C (73.9°F) is experienced in Chumayel.

Heat index

The heat index in September is appraised at a blazing hot 49°C (120.2°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Note that heat index values are valued for light wind and location in the shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

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

Rainfall

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

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of September in Chumayel, sunrise is at 5:41 am and sunset at 6:12 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 5:45 pm CST.

Sunshine

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 health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.