September weather forecast
Juno Isles, FL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Juno Isles, Florida, with an average temperature fluctuating between 79.3°F (26.3°C) and 84.7°F (29.3°C).

Temperature

Transitioning into September, Juno Isles experiences an average high-temperature of a warm 84.7°F (29.3°C), marking a minor shift from the preceding month. In September, a low-temperature average of 79.3°F (26.3°C) is characteristic of Juno Isles, marking a minor shift from daytime temperatures.

Heat index

The heat index in September is computed to be a fiery hot 95°F (35°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September in Juno Isles is 76%.

Rainfall

In Juno Isles, during September, the rain falls for 25.4 days and regularly aggregates up to 5.75" (146mm) of precipitation. Throughout the year, in Juno Isles, Florida, there are 230.9 rainfall days, and 46.73" (1187mm) of precipitation is accumulated.

Daylight

In Juno Isles, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

In September, the average sunshine in Juno Isles is 8.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Juno Isles. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

How hot is September in Juno Isles?

In September, the average high-temperature and low-temperature are 84.7°F (29.3°C) and 79.3°F (26.3°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 95°F (35°C).

What is the average humidity in September in Juno Isles?

In Juno Isles, Florida, the average relative humidity in September is 76%.

How many days does it rain in September in Juno Isles?

In Juno Isles, Florida, in September, it is raining for 25.4 days, with typically 5.75" (146mm) of accumulated precipitation.

How many hours of daylight does Juno Isles have in September?

In Juno Isles, the average day length in September is 12h and 18min.

What time are sunrise and sunset in September in Juno Isles?

On the first day of September, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

How long on average sun shines in September in Juno Isles?

In September, the average sunshine duration in Juno Isles is 8.9h.

When is the highest UV index in Juno Isles?

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

What is the UV index reading in September in Juno Isles?

In Juno Isles, Florida, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk 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
Juno Isles, FL

Average temperature in September - Juno Isles, FL
  • Average high temperature in September: 84.7°F

The warmest months (with the highest average high temperature) are July and August (86.4°F).
The month with the lowest average high temperature is January (71.6°F).

  • Average low temperature in September: 79.3°F

The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

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Average pressure in September
Juno Isles, FL

Average pressure in September - Juno Isles, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).

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Average wind speed in September
Juno Isles, FL

Average wind speed in September - Juno Isles, FL
  • Average wind speed in September: 8.7mph

The windiest months (with the highest average wind speed) are January, March and November (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in September
Juno Isles, FL

Average humidity in September - Juno Isles, FL
  • Average humidity in September: 76%

The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in September
Juno Isles, FL

Average rainfall in September - Juno Isles, FL
  • Average rainfall in September: 5.75"

The wettest month (with the highest rainfall) is August (8.11").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in September
Juno Isles, FL

Average rainfall days in September - Juno Isles, FL
  • Average rainfall days in September: 25.4 days

The month with the highest number of rainy days is August (26.4 days).
The months with the least rainy days are January and February (13.3 days).

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Average daylight in September /
Average sunshine in September
Juno Isles, FL

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

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

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Average sunshine days in September
Juno Isles, FL

Average sunshine days in September - Juno Isles, FL
  • Average sunshine days in September: 3.5 days

The month with the most sunshine days is January (13.7 days).
The month with the least sunshine days is August (2.3 days).

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Average UV index in September
Juno Isles, FL

Average UV index in September - Juno Isles, FL
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).

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Average cloud cover in September
Juno Isles, FL

Average cloud cover in September - Juno Isles, FL
  • Average cloud cover in September: 31

The month with the most cloud cover is November (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Juno Isles, FL

Average visibility in September - Juno Isles, 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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Juno Isles, Florida, USA

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