September weather forecast
Sacalum, Mexico

September, the first month of the autumn in Sacalum, is still a tropical month, with temperature in the range of an average low of 23.3°C (73.9°F) and an average high of 33.6°C (92.5°F).

Temperature

In the transition from August to September, Sacalum reports an average high-temperature of a hot 33.6°C (92.5°F), indicating a close resemblance to the prior month. September witnesses an average nighttime temperature of 23.3°C (73.9°F).

Heat index

The average heat index in September is estimated at a life-threatening hot 49°C (120.2°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
Heat index determinations are made taking into account the shade and light air movements. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

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

Rainfall

In Sacalum, during September, the rain falls for 20.4 days and regularly aggregates up to 70mm (2.76") of precipitation. Throughout the year, there are 167.3 rainfall days, and 536mm (21.1") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 5:42 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 5:46 pm CST.

Sunshine

The average sunshine in September in Sacalum is 9.4h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index in Sacalum. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.