September weather forecast
Sayula de Alemán, Mexico

September, the first month of the autumn in Sayula de Alemán, is still a tropical month, with an average temperature varying between 22°C (71.6°F) and 30.7°C (87.3°F).

Temperature

Sayula de Alemán's September average high-temperature settles at a still hot 30.7°C (87.3°F), showing a near match with the preceding month. An average low-temperature of 22°C (71.6°F) is observed during the September nights.

Heat index

The heat index for September is evaluated at a blistering 42°C (107.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 86%.

Rainfall

In Sayula de Alemán, in September, during 26.8 rainfall days, 170mm (6.69") of precipitation is typically accumulated. In Sayula de Alemán, Mexico, during the entire year, the rain falls for 216.6 days and collects up to 1064mm (41.89") of precipitation.

Daylight

In September, the average length of the day 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, sunrise is at 6:10 am and sunset at 6:09 pm CST.

Sunshine

In September, the average sunshine is 7.5h.

UV index

The average daily maximum UV index in September in Sayula de Alemán, Mexico, is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.