September weather forecast
Lynne, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Lynne, Florida, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 72.7°F (22.6°C).

Temperature

The advent of September denotes an average high-temperature of a still hot 88.2°F (31.2°C), subtly different from August's 90.1°F (32.3°C). In the month of September, Lynne experiences an average low-temperature of 72.7°F (22.6°C).

Heat index

For most parts of September, the heat index is evaluated at a scorching 105.8°F (41°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 78%.

Rainfall

In Lynne, during September, the rain falls for 18.5 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Lynne, during the entire year, the rain falls for 159.3 days and collects up to 21.1" (536mm) of precipitation.

Snowfall

In Lynne, snow does not fall in February through December.

Daylight

In Lynne, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

In Lynne, the average sunshine in September is 8.6h.

UV index

In Lynne, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

How hot does it get in September?

The average high-temperature, in September, in Lynne, is 88.2°F (31.2°C), while the average low-temperature is 72.7°F (22.6°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 evaluated at 105.8°F (41°C).

What is the most humid month?

July through September, with an average relative humidity of 78%, are most humid months.

What is the average humidity in September in Lynne?

In Lynne, the average relative humidity in September is 78%.

How much does it rain in September?

In September, the rain falls for 18.5 days. Throughout September, 1.93" (49mm) of precipitation is accumulated.

When it does not snow?

In Lynne, snow does not fall in February through December.

What is the average length of the day in September?

In September, the average day length is 12h and 20min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

How many hours of sunshine does Lynne have in September?

In Lynne, the average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

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

Average temperature in September
Lynne, FL

Average temperature in September - Lynne, FL
  • Average high temperature in September: 88.2°F

The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (66.6°F).

  • Average low temperature in September: 72.7°F

The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

Average pressure in September
Lynne, FL

Average pressure in September - Lynne, FL
  • Average pressure in September: 29.97"Hg

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

Average wind speed in September
Lynne, FL

Average wind speed in September - Lynne, FL
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Lynne, FL

Average humidity in September - Lynne, FL
  • Average humidity in September: 78%

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

Average rainfall in September
Lynne, FL

Average rainfall in September - Lynne, FL
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is March (0.71").

Average rainfall days in September
Lynne, FL

Average rainfall days in September - Lynne, FL
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is July (21.9 days).
The month with the least rainy days is November (7 days).

Average snowfall days in September
Lynne, FL

Average snowfall days in September - Lynne, FL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The 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
Lynne, FL

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is May (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Lynne, FL

Average sunshine days in September - Lynne, FL
  • Average sunshine days in September: 9.8 days

The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is July (6.3 days).

Average UV index in September
Lynne, FL

Average UV index in September - Lynne, 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 4).

Average cloud cover in September
Lynne, FL

Average cloud cover in September - Lynne, FL
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 29).

Average visibility in September
Lynne, FL

Average visibility in September - Lynne, 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).

Lynne, Florida, USA

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