September weather forecast and climate
Monterey, AL

Weather in September

The first month of the autumn, September, is still a tropical month in Monterey, Alabama, with average temperature fluctuating between 67.8°F (19.9°C) and 87.1°F (30.6°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a still tropical 87.1°F (30.6°C). In Monterey, in September, the average low-temperature is 67.8°F (19.9°C).

Heat index

In September, the average heat index is calculated to a torrid 99.9°F (37.7°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the 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', 'apparent temperature', 'felt air temperature', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like metabolic differences, wind, differences in body mass, height, and shape, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Monterey, the average relative humidity is 74%.

Rainfall

In Monterey, Alabama, during September, the rain falls for 15.4 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Monterey, during the entire year, the rain falls for 171.8 days and collects up to 35.16" (893mm) of precipitation.

Snowfall

In Monterey snow does not fall in April through November.

Daylight

In September, the average length of the day is 12.3h.

Sunshine

In September, the average sunshine in Monterey is 8.9h.

UV index

The average daily maximum UV index in Monterey is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Monterey?

In Monterey, in September, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines air temperature and relative humidity, in September is estimated at 99.9°F (37.7°C).

What is the average humidity in September in Monterey?

The average relative humidity in September in Monterey, Alabama, is 74%.

How much does it rain in Monterey in September?

In Monterey, Alabama, in September, during 15.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Monterey?

April through November are months without snowfall in Monterey, Alabama.

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

In Monterey, the average length of the day in September is 12.3h.

How many hours of sunshine does Monterey have in September?

The average sunshine in September in Monterey, Alabama, is 8.9h.

How high is the UV index in September in Monterey?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
Monterey, AL

Average temperature in September - Monterey, AL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.7°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in September
Monterey, AL

Average pressure in September - Monterey, AL
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

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Average wind speed in September
Monterey, AL

Average wind speed in September - Monterey, AL
  • Average wind speed in September: 5mph

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

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Average humidity in September
Monterey, AL

Average humidity in September - Monterey, AL
  • Average humidity in September: 74%

Months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Monterey, AL

Average rainfall in September - Monterey, AL
  • Average rainfall in September: 2.28"

The wettest months (with the highest rainfall) are August and December (3.94").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in September
Monterey, AL

Average rainfall days in September - Monterey, AL
  • Average rainfall days in September: 15.4 days

The month with the highest number of rainy days is July (23 days).
The month with the least rainy days is November (7.3 days).

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Average snowfall in September
Monterey, AL

Average snowfall in September - Monterey, AL
  • Average snowfall in September: 0"

Months with the highest snowfall are January and February (0.2").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Monterey, AL

Average snowfall days in September - Monterey, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
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
Monterey, AL

Average daylight in September / Average sunshine in September - Monterey, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is June (Average sunshine: 10.8h).
Months with the least sunshine are February and December (Average sunshine: 5.1).

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Average sunshine days in September
Monterey, AL

Average sunshine days in September - Monterey, AL
  • Average sunshine days in September: 12.9 days

Months with the most sunshine days are October and November (21 days).
The month with the least sunshine days is July (6.5 days).

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Average UV index in September
Monterey, AL

Average UV index in September - Monterey, AL
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Monterey, AL

Average cloud cover in September - Monterey, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in September
Monterey, AL

Average visibility in September - Monterey, AL
  • Average visibility in September: 5mi

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

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