September weather forecastMatanchén, Mexico

Weather in September

The first month of the autumn, September, is still a tropical month in Matanchén, Mexico, with an average temperature fluctuating between 23.9°C (75°F) and 32.2°C (90°F).

Temperature

Matanchén notes an average high-temperature of a still hot 32.2°C (90°F) in September, hardly diverging from August. In Matanchén, an average nighttime temperature of 23.9°C (75°F) is expected during September.

Heat index

The average heat index in September is appraised at a life-threatening hot 45°C (113°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The most humid month is September, with an average relative humidity of 79%.

Rainfall

In September, the rain falls for 20.5 days. Throughout September, 92mm (3.62") of precipitation is accumulated. In Matanchén, during the entire year, the rain falls for 106.3 days and collects up to 439mm (17.28") of precipitation.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 5:44 am and sunset at 6:16 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 5:49 pm MST.

Sunshine

In Matanchén, the average sunshine in September is 9.9h.

UV index

The months with the highest UV index in Matanchén are May through July, September and October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.