September weather forecast
Seabrook, TX

September, the first month of the autumn in Seabrook, is also a hot month, with an average temperature ranging between max 86.2°F (30.1°C) and min 75.7°F (24.3°C).

Temperature

Seabrook's transition from August to September introduces an average high-temperature of a still hot 86.2°F (30.1°C), marking an insignificant variation from the 90.5°F (32.5°C). Seabrook witnesses an average low-temperature of 75.7°F (24.3°C) throughout the month of September.

Heat index

The heat index value during September is estimated at a very hot 98.6°F (37°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. 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. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Seabrook, Texas, the average relative humidity in September is 75%.

Rainfall

September is the month with the most rainfall. Rain falls for 15.9 days and accumulates 1.5" (38mm) of precipitation.

Snowfall

January, September and December are months with snowfall. The months with the most snowfall days in Seabrook are January, September and December, with an average of 0.1 snowfall days.

Ocean temperature

In Seabrook, in September, the average water temperature is 83.5°F (28.6°C).
Note: Water activities including swimming and diving are pleasurable in temperatures between 77°F (25°C) and 84.2°F (29°C), ensuring comfort and enjoyment for extended time frames.

Daylight

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

Sunshine

In Seabrook, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in Seabrook, Texas, is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.