September weather forecast
Acayucan, Mexico

The first month of the autumn, September, is also a hot month in Acayucan, Mexico, with an average temperature varying between 30.7°C (87.3°F) and 22°C (71.6°F).

Temperature

Acayucan's September showcases an average high-temperature of a still hot 30.7°C (87.3°F), hardly distinct from August's 31.7°C (89.1°F). Throughout the nights in September, an average low-temperature of 22°C (71.6°F) is noted.

Heat index

During September, the heat index is estimated at a blisteringly hot 42°C (107.6°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. 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 highly critical for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Acayucan, Mexico, the average relative humidity in September is 86%.

Rainfall

In Acayucan, in September, it is raining for 26.8 days, with typically 170mm (6.69") of accumulated precipitation. Throughout the year, there are 216.6 rainfall days, and 1064mm (41.89") of precipitation is accumulated.

Daylight

The average length of the day in September in Acayucan is 12h and 14min.
On the first day of September, sunrise is at 6:05 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:08 pm CST.

Sunshine

The average sunshine in September is 7.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.