September weather forecast
Tecomán, Mexico

September, the first month of the autumn in Tecomán, is still a hot month, with temperature in the range of an average low of 22.6°C (72.7°F) and an average high of 31°C (87.8°F).

Temperature

The arrival of September sees an average high-temperature of a still tropical 31°C (87.8°F), hardly diverging from August's 32.1°C (89.8°F). Tecomán's average low-temperature in the month of September is recorded at a pleasant 22.6°C (72.7°F).

Heat index

Throughout September, the heat index is computed to be a blistering 41°C (105.8°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

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

Rainfall

The month with the most rainfall is September, when the rain falls for 18.3 days and typically aggregates up to 101mm (3.98") of precipitation.

Daylight

In September, the average length of the day in Tecomán is 12h and 14min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:09 pm. On the last day of September, in Tecomán, sunrise is at 6:46 am and sunset at 6:44 pm CST.

Sunshine

With an average of 8.9h of sunshine, September has the least sunshine of the year.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the UV index of 7 transforms into the following advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.