September weather forecast and climate
Carlsbad, NM

Weather in September

The first month of the autumn, September, is also a moderately hot month in Carlsbad, New Mexico, with average temperature fluctuating between 85.6°F (29.8°C) and 67.5°F (19.7°C).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 93.7°F (34.3°C) in August, to a moderately hot 85.6°F (29.8°C). In September, the average low-temperature is 67.5°F (19.7°C).

Heat index

The average heat index in September is evaluated at a tropical 86.5°F (30.3°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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', 'felt air temperature', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, wind, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Carlsbad, the average relative humidity in September is 47%.

Rainfall

September is the month with the most rainfall. Rain falls for 12.2 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

In Carlsbad snow does not fall in April through October.

Daylight

The average length of the day in Carlsbad is 12.4h.

Sunshine

In Carlsbad, the average sunshine in September is 10.4h.

UV index

The average daily maximum UV index in Carlsbad is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect 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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FAQ

What is the temperature in September in Carlsbad?

In Carlsbad, in September, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that factores the actual air temperature with the relative humidity, in September is evaluated at 86.5°F (30.3°C).

What is the average humidity in September in Carlsbad?

The average relative humidity in September in Carlsbad is 47%.

How many days does it rain in September in Carlsbad?

In Carlsbad, New Mexico, in September, during 12.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the rainiest month in Carlsbad?

The month with the most rainfall in Carlsbad is September when the rain falls for 12.2 days and typically aggregates up to 1.85" (47mm) of precipitation.

When it does not snow in Carlsbad?

In Carlsbad snow does not fall in April through October.

How many hours of daylight does Carlsbad have in September?

In Carlsbad, New Mexico, the average length of the day in September is 12.4h.

How long on average sun shines in September in Carlsbad?

The average sunshine in September is 10.4h.

How high is the UV index in September in Carlsbad?

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

Average temperature in September
Carlsbad, NM

Average temperature in September - Carlsbad, NM
  • Average high temperature in September: 85.6°F

The warmest month (with the highest average high temperature) is June (95°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in September: 67.5°F

Months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

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Average pressure in September
Carlsbad, NM

Average pressure in September - Carlsbad, NM
  • Average pressure in September: 29.95"

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is June (29.83").

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Average wind speed in September
Carlsbad, NM

Average wind speed in September - Carlsbad, NM
  • Average wind speed in September: 9mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest months (with the lowest average wind speed) are January and December (8.4mph).

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Average humidity in September
Carlsbad, NM

Average humidity in September - Carlsbad, NM
  • Average humidity in September: 47%

The month with the highest relative humidity is December (48%).
The month with the lowest relative humidity is April (26%).

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Average rainfall in September
Carlsbad, NM

Average rainfall in September - Carlsbad, NM
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is September (1.85").
The driest month (with the least rainfall) is February (0.16").

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Average rainfall days in September
Carlsbad, NM

Average rainfall days in September - Carlsbad, NM
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (12.3 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in September
Carlsbad, NM

Average snowfall in September - Carlsbad, NM
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.67").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Carlsbad, NM

Average snowfall days in September - Carlsbad, NM
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (1.9 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
Carlsbad, NM

Average daylight in September / Average sunshine in September - Carlsbad, NM
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 10.4h

The month with the most sunshine is June (Average sunshine: 12h).
Months with the least sunshine are February and December (Average sunshine: 7.1).

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Average sunshine days in September
Carlsbad, NM

Average sunshine days in September - Carlsbad, NM
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is January (26.7 days).
The month with the least sunshine days is August (14.3 days).

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Average UV index in September
Carlsbad, NM

Average UV index in September - Carlsbad, NM
  • Average UV index in September: 6

Months with the highest UV index are May, 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
Carlsbad, NM

Average cloud cover in September - Carlsbad, NM
  • Average cloud cover in September: 19

Months with the most cloud cover are September and December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 11).

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Average visibility in September
Carlsbad, NM

Average visibility in September - Carlsbad, NM
  • Average visibility in September: 6mi

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

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