September weather forecast
San Felipe Jalapa de Díaz, Mexico

The first month of the autumn, September, is also a hot month in San Felipe Jalapa de Díaz, Mexico, with an average temperature ranging between max 30.8°C (87.4°F) and min 21.1°C (70°F).

Temperature

The average high-temperature during September registers at a still hot 30.8°C (87.4°F), maintaining a close resemblance to the previous month. September in San Felipe Jalapa de Díaz is noted for a mean low-temperature of 21.1°C (70°F).

Heat index

For most parts of September, the heat index is calculated to be a scorching 41°C (105.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. 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 'real feel', quantifies the warmth felt when relative humidity is considered. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 especially vital to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

January, September, November and December, with an average relative humidity of 83%, are the most humid months in San Felipe Jalapa de Díaz.

Rainfall

In San Felipe Jalapa de Díaz, in September, during 25.5 rainfall days, 130mm (5.12") of precipitation is typically accumulated. Throughout the year, in San Felipe Jalapa de Díaz, there are 209 rainfall days, and 998mm (39.29") of precipitation is accumulated.

Daylight

In San Felipe Jalapa de Díaz, the average length of the day in September is 12h and 14min.
On the first day of September in San Felipe Jalapa de Díaz, sunrise is at 6:11 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 6:15 pm CST.

Sunshine

The average sunshine in September in San Felipe Jalapa de Díaz is 8.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.