September weather forecast and climate
Capri Islands, AL

The first month of the autumn, September, is also a moderately hot month in Capri Islands, Alabama, with average temperature ranging between max 84.6°F (29.2°C) and min 64°F (17.8°C).

Temperature

In Capri Islands, the average high-temperature is practically the same as in August - a moderately hot 84.6°F (29.2°C). In September, in Capri Islands, the average low-temperature is 64°F (17.8°C).

Heat index

In September, the average heat index is calculated to a tropical 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, pregnancy). 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 particularly important for children. 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

The average relative humidity in Capri Islands is 74%.

Rainfall

In Capri Islands, Alabama, during 12 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Capri Islands, during the entire year, the rain falls for 155.6 days and collects up to 25.63" (651mm) of precipitation.

Snowfall

March through November are months without snowfall in Capri Islands.

Daylight

The average length of the day in Capri Islands is 12.4h.

Sunshine

The average sunshine in Capri Islands, Alabama, is 8.7h.

UV index

In September, the average daily maximum UV index in Capri Islands, Alabama, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Capri Islands?

The average high-temperature, in September, in Capri Islands, Alabama, is 84.6°F (29.2°C), while the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines both air temperature and relative humidity, in September is appraised at 93.2°F (34°C).

What is the average humidity in September in Capri Islands?

In September, the average relative humidity in Capri Islands is 74%.

How many days does it rain in September in Capri Islands?

In Capri Islands, Alabama, in September, during 12 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Capri Islands?

In Capri Islands, Alabama, snow does not fall in March through November.

What is the average length of the day in September in Capri Islands?

In Capri Islands, Alabama, the average length of the day in September is 12.4h.

How long on average sun shines in September in Capri Islands?

In Capri Islands, Alabama, the average sunshine in September is 8.7h.

How high is the UV index in September in Capri Islands?

The average daily maximum UV index in September in Capri Islands, Alabama, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Capri Islands, AL
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.9°F).

  • Average low temperature in September: 64°F

Months with the highest average low temperature are July and August (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

Average pressure in September - Capri Islands, AL
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in September - Capri Islands, AL
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in September - Capri Islands, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September - Capri Islands, AL
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is October (1.38").

Average rainfall days in September - Capri Islands, AL
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is November (8 days).

Average snowfall in September - Capri Islands, AL
  • Average snowfall in September: 0"

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

Average snowfall days in September - Capri Islands, AL
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (1.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Capri Islands, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in September - Capri Islands, AL
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (9 days).

Average UV index in September - Capri Islands, AL
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September - Capri Islands, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 48).
Months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in September - Capri Islands, AL
  • 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).