September weather forecast
Alhambra, LA

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Weather in September

September, the first month of the autumn in Alhambra, is also a hot month, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 87.3°F (30.7°C).

Temperature

A minimal variation is noted in Alhambra's average high-temperature at the onset of September, reaching a still tropical 87.3°F (30.7°C) from August's 90.9°F (32.7°C). Throughout September, a steady low-temperature average of 70.5°F (21.4°C) is noted.

Heat index

The average heat index in September is appraised at a scorching 104°F (40°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 primarily vital for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Alhambra, the average relative humidity in September is 80%.

Rainfall

In September, the rain falls for 17 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. In Alhambra, during the entire year, the rain falls for 154.1 days and collects up to 17.91" (455mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In September, the average daily maximum UV index in Alhambra is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

How hot is September?

The high-temperature, in September, in Alhambra, is 87.3°F (30.7°C), while the low-temperature averages to 70.5°F (21.4°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 104°F (40°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

How much does it rain in September?

In September, the rain falls for 17 days. Throughout September, 1.26" (32mm) of precipitation is accumulated.

When it does not snow?

In Alhambra, snow does not fall in February through December.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.8h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average max. wind speed
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
Alhambra, LA

Average temperature in September - Alhambra, LA
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (59.4°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 (44.1°F).

Average pressure in September
Alhambra, LA

Average pressure in September - Alhambra, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in September
Alhambra, LA

Average wind speed in September - Alhambra, LA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September
Alhambra, LA

Average humidity in September - Alhambra, LA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Alhambra, LA

Average rainfall in September - Alhambra, LA
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is November (0.79").

Average rainfall days in September
Alhambra, LA

Average rainfall days in September - Alhambra, LA
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (7.2 days).

Average snowfall in September
Alhambra, LA

Average snowfall in September - Alhambra, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Alhambra, LA

Average snowfall days in September - Alhambra, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 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
Alhambra, LA

Average daylight in September / Average sunshine in September - Alhambra, LA
  • 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: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Alhambra, LA

Average sunshine days in September - Alhambra, LA
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in September
Alhambra, LA

Average UV index in September - Alhambra, LA
  • 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).

Average cloud cover in September
Alhambra, LA

Average cloud cover in September - Alhambra, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in September
Alhambra, LA

Average visibility in September - Alhambra, LA
  • Average visibility in September: 5mi

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

Alhambra, Louisiana, USA

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