September weather forecast
Navasota, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Navasota, Texas, with an average temperature fluctuating between 88.7°F (31.5°C) and 70.5°F (21.4°C).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from a fiery hot 95.5°F (35.3°C) in August to a tropical 88.7°F (31.5°C). In the month of September, an average of 70.5°F (21.4°C) marks the low-temperature.

Heat index

For September, the heat index is evaluated at an extremely hot 104°F (40°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Navasota, during September, the rain falls for 16.5 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Navasota, Texas, there are 163.6 rainfall days, and 30.71" (780mm) of precipitation is accumulated.

Snowfall

In Navasota, Texas, snow does not fall in February through November.

Daylight

In Navasota, Texas, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:46 pm. On the last day of September, in Navasota, sunrise is at 7:17 am and sunset at 7:10 pm CDT.

Sunshine

In Navasota, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 during September leads to these advisories:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot is it in Navasota in September?

An average high-temperature, in September, in Navasota, is 88.7°F (31.5°C) and the average low-temperature is 70.5°F (21.4°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 104°F (40°C).

What is the average humidity in September in Navasota?

In Navasota, Texas, the average relative humidity in September is 73%.

How much does it rain in Navasota in September?

In Navasota, during September, the rain falls for 16.5 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Navasota?

February through November are months without snowfall.

What is the average length of the day in September in Navasota?

The average day length in September in Navasota, Texas, is 12h and 20min.

When is the sunrise / sunset in September in Navasota?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:10 pm CDT.

How long on average sun shines in September in Navasota?

In Navasota, the average sunshine duration in September is 8.5h.

What is the UV index reading in September in Navasota?

The average daily maximum UV index in September in Navasota, Texas, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Navasota, TX

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

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in September: 70.5°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

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Average pressure in September
Navasota, TX

Average pressure in September - Navasota, TX
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Navasota, TX

Average wind speed in September - Navasota, TX
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

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Average humidity in September
Navasota, TX

Average humidity in September - Navasota, TX
  • Average humidity in September: 73%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Navasota, TX

Average rainfall in September - Navasota, TX
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is February (1.65").

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Average rainfall days in September
Navasota, TX

Average rainfall days in September - Navasota, TX
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is September (16.5 days).
The month with the least rainy days is January (10.7 days).

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Average snowfall in September
Navasota, TX

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

The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Navasota, TX

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

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

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

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

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Navasota, TX

Average sunshine days in September - Navasota, TX
  • Average sunshine days in September: 11.6 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (11 days).

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Average UV index in September
Navasota, TX

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

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

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Average cloud cover in September
Navasota, TX

Average cloud cover in September - Navasota, TX
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Navasota, TX

Average visibility in September - Navasota, TX
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, August, September, October, November and December (6mi).
The months with the lowest visibility are April, May, June and July (5mi).

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Navasota, Texas, USA

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