September weather forecast
San Lucas Ojitlán, Mexico

The first month of the autumn, September, is still a tropical month in San Lucas Ojitlán, Mexico, with an average temperature fluctuating between 21.1°C (70°F) and 30.8°C (87.4°F).

Temperature

San Lucas Ojitlán signifies an average high-temperature of a still hot 30.8°C (87.4°F) in September, closely mirroring the 31.8°C (89.2°F) of August. In September, the average low-temperature is a pleasant 21.1°C (70°F).

Heat index

The heat index for September is estimated at a blisteringly hot 41°C (105.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

January, September, November and December, with an average relative humidity of 83%, are the most humid months in San Lucas Ojitlán.

Rainfall

In San Lucas Ojitlán, during September, the rain falls for 25.5 days and regularly aggregates up to 130mm (5.12") of precipitation. In San Lucas Ojitlán, during the entire year, the rain falls for 209 days and collects up to 998mm (39.29") of precipitation.

Daylight

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

Sunshine

In San Lucas Ojitlán, the average sunshine in September is 8.6h.

UV index

In San Lucas Ojitlán, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.