September weather forecast
Santa Margarita, TX

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Weather in September

September, the first month of the autumn in Santa Margarita, is still a hot month, with an average temperature varying between 77.2°F (25.1°C) and 93°F (33.9°C).

Temperature

The shift from August to September coincides with a small decrease in the average high-temperature, down to a hot 93°F (33.9°C) from a fiery hot 100.6°F (38.1°C). During September, Santa Margarita experiences an average low-temperature of 77.2°F (25.1°C) at night.

Heat index

September's average heat index is evaluated at a blistering 107.6°F (42°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In September, the average relative humidity is 61%.

Rainfall

September is the month with the most rainfall. Rain falls for 14.5 days and accumulates 2.28" (58mm) of precipitation.

Snowfall

In Santa Margarita, snow does not fall in February through December.

Daylight

In September, the average length of the day is 12h and 18min.
On the first day of the month, sunrise is at 7:16 am and sunset at 7:55 pm. On the last day of September, in Santa Margarita, Texas, sunrise is at 7:28 am and sunset at 7:23 pm CDT.

Sunshine

In Santa Margarita, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Santa Margarita, Texas, is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Santa Margarita in September?

The high-temperature, in September, in Santa Margarita, records 93°F (33.9°C), while the low-temperature is 77.2°F (25.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 107.6°F (42°C).

What is the average humidity in September in Santa Margarita?

The average relative humidity in September is 61%.

What is the rainiest month in Santa Margarita?

The month with the most rainfall in Santa Margarita is September, when the rain falls for 14.5 days and typically aggregates up to 2.28" (58mm) of precipitation.

How many days does it rain in September in Santa Margarita?

In Santa Margarita, in September, it is raining for 14.5 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Santa Margarita?

February through December are months without snowfall in Santa Margarita.

How many hours of daylight does Santa Margarita have in September?

The average day length in September in Santa Margarita, Texas, is 12h and 18min.

When is the sunrise / sunset in September in Santa Margarita?

In September, on the first day of the month, sunrise is at 7:16 am and sunset at 7:55 pm. On the last day of the month, in Santa Margarita, Texas, sunrise is at 7:28 am and sunset at 7:23 pm CDT.

How long on average sun shines in September in Santa Margarita?

In September, the average sunshine duration is 8.5h.

How high is the UV index in September in Santa Margarita?

In Santa Margarita, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Santa Margarita, TX

Average temperature in September - Santa Margarita, TX
  • Average high temperature in September: 93°F

The warmest month (with the highest average high temperature) is August (100.6°F).
The month with the lowest average high temperature is January (69.8°F).

  • Average low temperature in September: 77.2°F

The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).

Average pressure in September
Santa Margarita, TX

Average pressure in September - Santa Margarita, TX
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is May (29.86"Hg).

Average wind speed in September
Santa Margarita, TX

Average wind speed in September - Santa Margarita, TX
  • Average wind speed in September: 10.2mph

The windiest month (with the highest average wind speed) is July (14.4mph).
The calmest month (with the lowest average wind speed) is December (9.1mph).

Average humidity in September
Santa Margarita, TX

Average humidity in September - Santa Margarita, TX
  • Average humidity in September: 61%

The month with the highest relative humidity is December (63%).
The month with the lowest relative humidity is August (52%).

Average rainfall in September
Santa Margarita, TX

Average rainfall in September - Santa Margarita, TX
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is September (2.28").
The driest month (with the least rainfall) is February (0.39").

Average rainfall days in September
Santa Margarita, TX

Average rainfall days in September - Santa Margarita, TX
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is February (5.4 days).

Average snowfall days in September
Santa Margarita, TX

Average snowfall days in September - Santa Margarita, 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
Santa Margarita, TX

Average daylight in September / Average sunshine in September - Santa Margarita, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in September
Santa Margarita, TX

Average sunshine days in September - Santa Margarita, TX
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is December (24.1 days).
The month with the least sunshine days is September (13.9 days).

Average UV index in September
Santa Margarita, TX

Average UV index in September - Santa Margarita, TX
  • Average UV index in September: 7

The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in September
Santa Margarita, TX

Average cloud cover in September - Santa Margarita, TX
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in September
Santa Margarita, TX

Average visibility in September - Santa Margarita, 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).

Santa Margarita, Texas, USA

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