September weather forecast
Lake City, FL

Share

Weather in September

September, the first month of the autumn in Lake City, is also a hot month, with an average temperature ranging between max 87.8°F (31°C) and min 70.9°F (21.6°C).

Temperature

In the transition from August to September, Lake City reports an average high-temperature of a still tropical 87.8°F (31°C), indicating a close resemblance to the prior month. Lake City observes an average nighttime temperature of 70.9°F (21.6°C) during September.

Heat index

September's mean heat index is appraised at a blistering 104°F (40°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The months with the highest humidity are August, September and December, with an average relative humidity of 77%.

Rainfall

In Lake City, during September, the rain falls for 19.9 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Lake City, during the entire year, the rain falls for 176.6 days and collects up to 32.17" (817mm) of precipitation.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature, in September, in Lake City, records 87.8°F (31°C), while the low-temperature is 70.9°F (21.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 104°F (40°C).

What is the most humid month?

The months with the highest humidity are August, September and December, with an average relative humidity of 77%.

What is the average humidity in September?

In September, the average relative humidity is 77%.

How much does it rain in September?

In Lake City, during September, the rain falls for 19.9 days and regularly aggregates up to 3.07" (78mm) of precipitation.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.5h.

What is the UV index intensity in September?

In Lake City, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lake City, FL

Average temperature in September - Lake City, FL
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (62.6°F).

  • Average low temperature in September: 70.9°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in September
Lake City, FL

Average pressure in September - Lake City, FL
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).

Average wind speed in September
Lake City, FL

Average wind speed in September - Lake City, FL
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in September
Lake City, FL

Average humidity in September - Lake City, FL
  • Average humidity in September: 77%

The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).

Average rainfall in September
Lake City, FL

Average rainfall in September - Lake City, FL
  • Average rainfall in September: 3.07"

The wettest month (with the highest rainfall) is July (5.12").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in September
Lake City, FL

Average rainfall days in September - Lake City, FL
  • Average rainfall days in September: 19.9 days

The month with the highest number of rainy days is August (27.6 days).
The month with the least rainy days is November (6.9 days).

Average daylight in September /
Average sunshine in September
Lake City, FL

Average daylight in September / Average sunshine in September - Lake City, FL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in September
Lake City, FL

Average sunshine days in September - Lake City, FL
  • Average sunshine days in September: 8.3 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (1.8 days).

Average UV index in September
Lake City, FL

Average UV index in September - Lake City, FL
  • Average UV index in September: 6

The 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 3).

Average cloud cover in September
Lake City, FL

Average cloud cover in September - Lake City, FL
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Lake City, FL

Average visibility in September - Lake City, FL
  • 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).

Lake City, Florida, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location