September weather forecast
Trinidad, TX

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Weather in September

September, the first month of the autumn in Trinidad, is also a hot month, with an average temperature fluctuating between 88.7°F (31.5°C) and 68.9°F (20.5°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from a fiery hot 95.7°F (35.4°C) in August to a hot 88.7°F (31.5°C). During the nights in September, Trinidad observes an average low-temperature of 68.9°F (20.5°C).

Heat index

For most parts of September, the heat index is estimated at a torrid 100.4°F (38°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Trinidad, the average relative humidity in September is 68%.

Rainfall

In September, the rain falls for 10.2 days. Throughout September, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 101.3 rainfall days, and 10.59" (269mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:10 pm CDT.

Sunshine

The average sunshine in September in Trinidad, Texas, is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during September leads to these advisories:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

Is it hot in Trinidad during September?

In Trinidad, 88.7°F (31.5°C) is the average high-temperature and 68.9°F (20.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in September is estimated at 100.4°F (38°C).

What is the average humidity in September in Trinidad?

In September, the average relative humidity in Trinidad is 68%.

How many days does it rain in September in Trinidad?

In Trinidad, Texas, during September, the rain falls for 10.2 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When it does not snow in Trinidad?

In Trinidad, Texas, snow does not fall in March through December.

How many hours of daylight does Trinidad have in September?

In Trinidad, Texas, the average day length in September is 12h and 21min.

What time are sunrise and sunset in September in Trinidad?

On the first day of September in Trinidad, sunrise is at 7:00 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:10 pm CDT.

How many hours of sunshine does Trinidad have in September?

In Trinidad, the average sunshine duration in September is 8.6h.

What is the UV index reading in September in Trinidad?

The average daily maximum UV index in September in Trinidad, Texas, is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Trinidad, TX

Average temperature in September - Trinidad, TX
  • Average high temperature in September: 88.7°F

The warmest month (with the highest average high temperature) is August (95.7°F).
The month with the lowest average high temperature is January (55.2°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

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Average pressure in September
Trinidad, TX

Average pressure in September - Trinidad, TX
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Trinidad, TX

Average wind speed in September - Trinidad, TX
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is September (6mph).

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Average humidity in September
Trinidad, TX

Average humidity in September - Trinidad, TX
  • Average humidity in September: 68%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in September
Trinidad, TX

Average rainfall in September - Trinidad, TX
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January and November (0.55").

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Average rainfall days in September
Trinidad, TX

Average rainfall days in September - Trinidad, TX
  • Average rainfall days in September: 10.2 days

The months with the highest number of rainy days are May and September (10.2 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in September
Trinidad, TX

Average snowfall in September - Trinidad, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Trinidad, TX

Average snowfall days in September - Trinidad, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Trinidad, TX

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Trinidad, TX

Average sunshine days in September - Trinidad, TX
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is September (15.7 days).

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Average UV index in September
Trinidad, TX

Average UV index in September - Trinidad, TX
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

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Average cloud cover in September
Trinidad, TX

Average cloud cover in September - Trinidad, TX
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in September
Trinidad, TX

Average visibility in September - Trinidad, 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).

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Trinidad, Texas, USA

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