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
With the arrival of September, Cardiff's average high-temperature registers at a moderately hot 85.1°F (29.5°C), indicating a subtle variation from the previous month. Cardiff's nights in September cool down to an average low-temperature of 65.8°F (18.8°C).Heat index
The heat index value for September is appraised at a hot 93.2°F (34°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
September and October, with an average relative humidity of 71%, are the least humid months.Rainfall
In Cardiff, in September, it is raining for 14.5 days, with typically 2.48" (63mm) of accumulated precipitation. In Cardiff, during the entire year, the rain falls for 173.7 days and collects up to 40" (1016mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Cardiff is 12h and 22min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:12 pm. On the last day of September, in Cardiff, sunrise is at 6:41 am and sunset at 6:33 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In Cardiff, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
How hot is it in Cardiff in September?
What is the least humid month in Cardiff?
What is the average humidity in September in Cardiff?
How much does it rain in Cardiff in September?
When it does not snow in Cardiff?
How many hours of daylight does Cardiff have in September?
What time are sunrise and sunset in September in Cardiff?
How long on average sun shines in September in Cardiff?
How high is the UV index in September in Cardiff?
Average temperature in September
Cardiff, AL
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Cardiff, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Cardiff, AL
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Cardiff, AL
- Average humidity in September: 71%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in September
Cardiff, AL
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in September
Cardiff, AL
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in September
Cardiff, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cardiff, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Cardiff, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Cardiff, AL
- Average sunshine days in September: 13 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Cardiff, AL
- Average UV index in September: 6
The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Cardiff, AL
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Cardiff, AL
- 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).
Cardiff, Alabama, USA
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