September weather forecast
Cobá, Mexico

The first month of the autumn, September, is still a hot month in Cobá, Mexico, with an average temperature varying between 31.3°C (88.3°F) and 25.7°C (78.3°F).

Temperature

The average high-temperature is a still tropical 31.3°C (88.3°F) in September, hardly different from the 31.8°C (89.2°F) recorded in August. An average nighttime temperature of 25.7°C (78.3°F) is witnessed in Cobá, Mexico throughout September.

Heat index

In September, the heat index is evaluated at a blistering 42°C (107.6°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Cobá, Mexico, the average relative humidity in September is 79%.

Rainfall

In Cobá, in September, it is raining for 23.2 days, with typically 97mm (3.82") of accumulated precipitation. Throughout the year, in Cobá, there are 210.8 rainfall days, and 810mm (31.89") of precipitation is accumulated.

Daylight

In Cobá, the average length of the day in September is 12h and 15min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:06 pm. On the last day of September, in Cobá, sunrise is at 6:41 am and sunset at 6:39 pm EST.

Sunshine

The average sunshine in September is 9.1h.

UV index

The months with the highest UV index in Cobá are March through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.