September weather forecast
Unión Roja, Mexico

The first month of the autumn, September, is still a hot month in Unión Roja, Mexico, with temperature in the range of an average high of 30.1°C (86.2°F) and an average low of 23.9°C (75°F).

Temperature

September's onset sees an average high-temperature of a still hot 30.1°C (86.2°F), exhibiting a slight fluctuation from the previous month. During the month of September, Unión Roja's nighttime temperature lowers to an average of 23.9°C (75°F).

Heat index

September's average heat index is computed to be a sweltering 37°C (98.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. 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', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. 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 hold particular significance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

September and October, with an average relative humidity of 76%, are the most humid months.

Rainfall

In Unión Roja, in September, during 27.8 rainfall days, 182mm (7.17") of precipitation is typically accumulated. Throughout the year, in Unión Roja, there are 227 rainfall days, and 1231mm (48.46") of precipitation is accumulated.

Daylight

In September, the average length of the day in Unión Roja is 12h and 13min.
On the first day of the month, sunrise is at 5:56 am and sunset at 6:20 pm. On the last day of September, in Unión Roja, sunrise is at 5:58 am and sunset at 5:58 pm CST.

Sunshine

The average sunshine in September in Unión Roja is 10.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Unión Roja are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.