September weather forecast
Acayucan, Mexico

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

Temperature

The weather during September records an average high-temperature of a still tropical 30.7°C (87.3°F), closely mirroring the preceding month. An average low-temperature of 22°C (71.6°F) is noted during the nights in September in Acayucan, Mexico.

Heat index

The heat index in September is evaluated at a blistering 42°C (107.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

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

Rainfall

In Acayucan, during September, the rain falls for 26.8 days and regularly aggregates up to 170mm (6.69") of precipitation. Throughout the year, there are 216.6 rainfall days, and 1064mm (41.89") of precipitation is accumulated.

Daylight

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

Sunshine

In September, the average sunshine in Acayucan is 7.5h.

UV index

In September, the average daily maximum UV index in Acayucan, Mexico, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.