September weather forecast
Petalcingo, Mexico

September, the first month of the autumn in Petalcingo, is still a hot month, with temperature in the range of an average low of 20.9°C (69.6°F) and an average high of 31°C (87.8°F).

Temperature

The shift into September records an average high-temperature of a still hot 31°C (87.8°F), subtly varied from August's 32.1°C (89.8°F). Petalcingo's average low-temperature is measured at an agreeable 20.9°C (69.6°F) during September.

Heat index

For September, the heat index is computed to be a scorching 43°C (109.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 are particularly relevant to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in September is 85%.

Rainfall

In Petalcingo, during September, the rain falls for 26.9 days and regularly aggregates up to 168mm (6.61") of precipitation. In Petalcingo, Mexico, during the entire year, the rain falls for 225.6 days and collects up to 1285mm (50.59") of precipitation.

Daylight

In Petalcingo, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 5:55 am and sunset at 6:22 pm. On the last day of September, in Petalcingo, Mexico, sunrise is at 5:59 am and sunset at 5:58 pm CST.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.