September weather forecast and climate
Andover, FL

September, the first month of the autumn, in Andover, is also a hot month, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 79.7°F (26.5°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 86.7°F (30.4°C). The average low-temperature, in Andover, Florida, is 79.7°F (26.5°C).

Heat index

The average heat index in September is evaluated at a very hot 97.9°F (36.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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', 'feels like', 'apparent temperature', or 'felt air temperature', 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 activity, wind, differences in body mass, height, and shape, and clothing affect individual temperature impact. 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 September, the average relative humidity in Andover, Florida, is 72%.

Rainfall

In Andover, Florida, during September, the rain falls for 4.6 days and regularly aggregates up to 0.28" (7mm) of precipitation. Throughout the year, in Andover, there are 57.2 rainfall days, and 5.24" (133mm) of precipitation is accumulated.

Daylight

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

Sunshine

In Andover, Florida, the average sunshine is 8.9h.

UV index

Months with the highest UV index in Andover, Florida, are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. 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 Andover?

The average high-temperature, in September, in Andover, Florida, is 86.7°F (30.4°C), while the average low-temperature is 79.7°F (26.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines both air temperature and relative humidity, is appraised at 97.9°F (36.6°C).

What is the average humidity in September in Andover?

In Andover, Florida, the average relative humidity in September is 72%.

How many days does it rain in September in Andover?

In Andover, Florida, in September, it is raining for 4.6 days, with typically 0.28" (7mm) of accumulated precipitation.

How many hours of daylight does Andover have in September?

The average length of the day in September in Andover, Florida, is 12.3h.

How long on average sun shines in September in Andover?

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

When is the highest UV index in Andover?

April through September, with an average maximum UV index of 7, are months with the highest UV index in Andover.

What is the UV index intensity in September in Andover?

In Andover, Florida, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.
Average temperature in September - Andover, FL
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is January (73.4°F).

  • Average low temperature in September: 79.7°F

The month with the highest average low temperature is August (81.9°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

Average pressure in September - Andover, FL
  • Average pressure in September: 29.95"

The month with the highest atmospheric pressure is January (30.11").
Months with the lowest atmospheric pressure are September and October (29.95").

Average wind speed in September - Andover, FL
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

Average humidity in September - Andover, FL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (74%).
The month with the lowest relative humidity is March (68%).

Average rainfall in September - Andover, FL
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is August (0.94").
The driest month (with the least rainfall) is January (0.16").

Average rainfall days in September - Andover, FL
  • Average rainfall days in September: 4.6 days

The month with the highest number of rainy days is July (6.7 days).
The month with the least rainy days is January (3.5 days).

Average daylight in September / Average sunshine in September - Andover, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.2h).

Average sunshine days in September - Andover, FL
  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is January (27.3 days).
The month with the least sunshine days is August (15.6 days).

Average UV index in September - Andover, FL
  • Average UV index in September: 7

Months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in September - Andover, FL
  • Average cloud cover in September: 30

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September - Andover, FL
  • 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).