Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Carlsbad's September weather shows a modest shift in high-temperatures, falling from August's fiery hot 95.7°F (35.4°C) to a hot 87.4°F (30.8°C). September's average low-temperature reading in Carlsbad settles at an agreeable 69.3°F (20.7°C).Heat index
For September, the heat index is calculated to be a tropical 93.2°F (34°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In September, the average relative humidity is 57%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. In Carlsbad, during the entire year, the rain falls for 89.7 days and collects up to 15.39" (391mm) of precipitation.Snowfall
April through October are months without snowfall in Carlsbad.Daylight
In September, the average length of the day in Carlsbad is 12h and 21min.On the first day of the month, sunrise is at 7:18 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:36 am and sunset at 7:28 pm CDT.
Sunshine
The average sunshine in September in Carlsbad is 8.9h.UV index
In September, the average daily maximum UV index in Carlsbad is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 during September translates into the following guidance:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
How hot is September in Carlsbad?
What is the average humidity in September in Carlsbad?
How many days does it rain in September in Carlsbad?
When it does not snow in Carlsbad?
How many hours of daylight does Carlsbad have in September?
When are sunrise and sunset in September in Carlsbad?
How long on average sun shines in September in Carlsbad?
What is the UV index reading in September in Carlsbad?
Average temperature in September
Carlsbad, TX
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (95.7°F).
The month with the lowest average high temperature is December (58.6°F).
- Average low temperature in September: 69.3°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in September
Carlsbad, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in September
Carlsbad, TX
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (13.5mph).
The calmest month (with the lowest average wind speed) is September (9.4mph).
Average humidity in September
Carlsbad, TX
- Average humidity in September: 57%
The month with the highest relative humidity is November (58%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Carlsbad, TX
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is October (2.4").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Carlsbad, TX
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (11.6 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in September
Carlsbad, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Carlsbad, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Carlsbad, 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Carlsbad, TX
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is January (26 days).
The month with the least sunshine days is May (16.8 days).
Average UV index in September
Carlsbad, TX
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Carlsbad, TX
- Average cloud cover in September: 27
The months with the most cloud cover are March and September (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Carlsbad, 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).
Carlsbad, Texas, USA
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