September weather forecast
Navojoa, Mexico

The first month of the autumn, September, is also a fiery hot month in Navojoa, Mexico, with an average temperature ranging between min 25.5°C (77.9°F) and max 35°C (95°F).

Temperature

The commencement of September records an average high-temperature of a still fiery hot 35°C (95°F), barely varying from August's 35.8°C (96.4°F). An average minimum temperature of 25.5°C (77.9°F) is recorded during the month of September.

Heat index

The heat index value for September is estimated at a life-threatening hot 47°C (116.6°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In September, the average relative humidity is 63%.

Rainfall

In Navojoa, in September, during 17.2 rainfall days, 76mm (2.99") of precipitation is typically accumulated. In Navojoa, during the entire year, the rain falls for 99.2 days and collects up to 399mm (15.71") of precipitation.

Daylight

The average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 5:57 am and sunset at 6:37 pm. On the last day of September, sunrise is at 6:10 am and sunset at 6:04 pm MST.

Sunshine

The average sunshine in September in Navojoa is 9.8h.

UV index

In September, the average daily maximum UV index in Navojoa, Mexico, is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.