September weather forecast
Pennichaw, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Pennichaw, Florida, with an average temperature ranging between max 88°F (31.1°C) and min 75°F (23.9°C).

Temperature

As September unfolds, the average high-temperature reaches a still hot 88°F (31.1°C), hinting at a slight fluctuation from the previous month. An average low-temperature of 75°F (23.9°C) is recorded during the nights in September in Pennichaw.

Heat index

The heat index value during September is estimated at a blistering 104°F (40°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The months with the highest humidity in Pennichaw are June through September and December, with an average relative humidity of 77%.

Rainfall

In Pennichaw, in September, it is raining for 17.6 days, with typically 2.24" (57mm) of accumulated precipitation. In Pennichaw, Florida, during the entire year, the rain falls for 157.7 days and collects up to 20.35" (517mm) of precipitation.

Daylight

In September, the average length of the day in Pennichaw is 12h and 19min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:45 pm. On the last day of September, in Pennichaw, sunrise is at 7:16 am and sunset at 7:10 pm EDT.

Sunshine

The average sunshine in September in Pennichaw, Florida, is 8.8h.

UV index

In Pennichaw, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 6 in September leads to these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

Is it hot in Pennichaw during September?

In September, the average high-temperature and low-temperature are 88°F (31.1°C) and 75°F (23.9°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 104°F (40°C).

What are the most humid months in Pennichaw?

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

What is the average humidity in September in Pennichaw?

In Pennichaw, the average relative humidity in September is 77%.

How much does it rain in Pennichaw in September?

In September, in Pennichaw, Florida, the rain falls for 17.6 days. Throughout September, 2.24" (57mm) of precipitation is accumulated.

What is the average length of the day in September in Pennichaw?

The average day length in September is 12h and 19min.

When are sunrise and sunset in September in Pennichaw?

On the first day of September in Pennichaw, Florida, sunrise is at 7:02 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:10 pm EDT.

How long on average sun shines in September in Pennichaw?

In September, the average sunshine duration in Pennichaw, Florida, is 8.8h.

How high is the UV index in September in Pennichaw?

The average daily maximum UV index in September in Pennichaw is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Pennichaw, FL

Average temperature in September - Pennichaw, FL
  • Average high temperature in September: 88°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 (68.4°F).

  • Average low temperature in September: 75°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).

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Average pressure in September
Pennichaw, FL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in September
Pennichaw, FL

Average wind speed in September - Pennichaw, FL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

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Average humidity in September
Pennichaw, FL

Average humidity in September - Pennichaw, FL
  • Average humidity in September: 77%

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

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Average rainfall in September
Pennichaw, FL

Average rainfall in September - Pennichaw, FL
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is March (0.71").

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Average rainfall days in September
Pennichaw, FL

Average rainfall days in September - Pennichaw, FL
  • Average rainfall days in September: 17.6 days

The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is February (8.5 days).

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Average daylight in September /
Average sunshine in September
Pennichaw, FL

Average daylight in September / Average sunshine in September - Pennichaw, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January, November and December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Pennichaw, FL

Average sunshine days in September - Pennichaw, FL
  • Average sunshine days in September: 8.8 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (6.6 days).

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Average UV index in September
Pennichaw, FL

Average UV index in September - Pennichaw, 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).

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Average cloud cover in September
Pennichaw, FL

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

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).

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Average visibility in September
Pennichaw, FL

Average visibility in September - Pennichaw, 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).

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Pennichaw, Florida, USA

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