September weather forecast and climate
Chain O'Lakes, FL

September, the first month of the autumn, in Chain O'Lakes, is still a tropical month, with average temperature varying between 88.3°F (31.3°C) and 73.4°F (23°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still tropical 88.3°F (31.3°C). In September, the average low-temperature is 73.4°F (23°C).

Heat index

The average heat index is evaluated at a scorching 106.2°F (41.2°C). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
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 what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, wind, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

August and September, with an average relative humidity of 78%, are most humid months.

Rainfall

In Chain O'Lakes, during September, the rain falls for 23.9 days and regularly aggregates up to 5.63" (143mm) of precipitation. In Chain O'Lakes, Florida, during the entire year, the rain falls for 203.3 days and collects up to 39.06" (992mm) of precipitation.

Snowfall

February through December are months without snowfall in Chain O'Lakes.

Daylight

In September, the average length of the day in Chain O'Lakes is 12.3h.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In September, the average daily maximum UV index in Chain O'Lakes is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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 Chain O'Lakes?

The average high-temperature, in September, in Chain O'Lakes, Florida, is 88.3°F (31.3°C), while the average low-temperature is 73.4°F (23°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in September is calculated to 106.2°F (41.2°C).

What is the most humid month in Chain O'Lakes?

August and September, with an average relative humidity of 78%, are most humid months in Chain O'Lakes.

What is the average humidity in September in Chain O'Lakes?

In Chain O'Lakes, the average relative humidity in September is 78%.

How many days does it rain in September in Chain O'Lakes?

In Chain O'Lakes, Florida, in September, it is raining for 23.9 days, with typically 5.63" (143mm) of accumulated precipitation.

When it does not snow in Chain O'Lakes?

In Chain O'Lakes snow does not fall in February through December.

What is the average length of the day in September in Chain O'Lakes?

In Chain O'Lakes, Florida, the average length of the day in September is 12.3h.

How long on average sun shines in September in Chain O'Lakes?

In Chain O'Lakes, Florida, the average sunshine in September is 8.4h.

How high is the UV index in September in Chain O'Lakes?

In September, the average daily maximum UV index in Chain O'Lakes, Florida, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.
Average temperature in September - Chain O
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is January (66.9°F).

  • Average low temperature in September: 73.4°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

Average pressure in September - Chain O
  • Average pressure in September: 29.97"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is September (29.97").

Average wind speed in September - Chain O
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).

Average humidity in September - Chain O
  • Average humidity in September: 78%

Months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September - Chain O
  • Average rainfall in September: 5.63"

The wettest month (with the highest rainfall) is July (6.57").
The driest month (with the least rainfall) is November (1.18").

Average rainfall days in September - Chain O
  • Average rainfall days in September: 23.9 days

The month with the highest number of rainy days is August (28.2 days).
The month with the least rainy days is November (9.9 days).

Average snowfall days in September - Chain O
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
Months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September / Average sunshine in September - Chain O
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in September: 8.4h

The month with the most sunshine is May (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 6.1h).

Average sunshine days in September - Chain O
  • Average sunshine days in September: 4.2 days

The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (1.3 days).

Average UV index in September - Chain O
  • 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 January (UV index 4).

Average cloud cover in September - Chain O
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 30).

Average visibility in September - Chain O
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).