Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September reveals an average high-temperature of a warm 85.5°F (29.7°C), mirroring a close resemblance to August. Surfside Beach records a mild decrease in temperature during the nights of September, averaging 77.2°F (25.1°C).Heat index
In September, the average heat index is evaluated at a torrid 95°F (35°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. 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', quantifies the warmth felt when relative humidity is considered. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the most rainfall. Rain falls for 18.7 days and accumulates 3.58" (91mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
In Surfside Beach, the average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 6:59 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Surfside Beach is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in September transforms into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
What is the rainiest month in Surfside Beach?
How many days does it rain in September in Surfside Beach?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Surfside Beach have in September?
What is the UV index reading in September?
Average temperature in September
Surfside Beach, TX
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (61°F).
- Average low temperature in September: 77.2°F
The month with the highest average low temperature is August (81°F).
The coldest month (with the lowest average low temperature) is January (51.4°F).
Average pressure in September
Surfside Beach, TX
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Surfside Beach, TX
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Surfside Beach, TX
- Average humidity in September: 75%
The months with the highest relative humidity are February and March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Surfside Beach, TX
- Average rainfall in September: 3.58"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in September
Surfside Beach, TX
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is September (18.7 days).
The months with the least rainy days are January and February (9.4 days).
Average snowfall days in September
Surfside Beach, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Surfside Beach, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Surfside Beach, TX
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is September (8.4 days).
Average UV index in September
Surfside Beach, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Surfside Beach, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Surfside Beach, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Surfside Beach, Texas, USA
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