September weather forecast
Santiago Yaveo, Mexico

September, the first month of the autumn in Santiago Yaveo, is also a hot month, with an average temperature fluctuating between 30.8°C (87.4°F) and 21.1°C (70°F).

Temperature

The arrival of September records an average high-temperature of a still hot 30.8°C (87.4°F), closely related to the 31.8°C (89.2°F) observed in August. September brings Santiago Yaveo a consistent average low-temperature of 21.1°C (70°F).

Heat index

The average heat index in September is calculated to be a blisteringly hot 41°C (105.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The months with the highest humidity in Santiago Yaveo are January, September, November and December, with an average relative humidity of 83%.

Rainfall

In September, the rain falls for 25.5 days. Throughout September, 130mm (5.12") of precipitation is accumulated. Throughout the year, there are 209 rainfall days, and 998mm (39.29") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:09 am and sunset at 6:36 pm. On the last day of September, sunrise is at 6:12 am and sunset at 6:12 pm CST.

Sunshine

In Santiago Yaveo, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Santiago Yaveo is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during September leads to these advisories:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.