September weather forecast
La Porte, TX

September, the first month of the autumn in La Porte, is still a tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 75.2°F (24°C).

Temperature

La Porte records an average high-temperature of a still hot 86.5°F (30.3°C) in September, closely mirroring the climate of the previous month. La Porte reports an average low-temperature of 75.2°F (24°C) during the nights of September.

Heat index

The heat index for September is evaluated at a torrid 98.6°F (37°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Note that heat index values are valued for light wind and location in the shade. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In La Porte, the average relative humidity in September is 75%.

Rainfall

The month with the most rainfall is September, when the rain falls for 17.4 days and typically aggregates up to 1.93" (49mm) of precipitation.

Snowfall

Months with snowfall are January, February and September. September is the first month it typically snows. Throughout September, there are 0.1 snowfall days. Throughout the year, there are 0.4 snowfall days.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:06 pm CDT.

Sunshine

In La Porte, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.