September weather forecast
Manhatten, FL

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Weather in September

September, the first month of the autumn in Manhatten, is still a tropical month, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 88.5°F (31.4°C).

Temperature

September's onset brings an average high-temperature of a still tropical 88.5°F (31.4°C), showing a minute difference from August's 91.4°F (33°C). Manhatten's nighttime temperature during September is consistently averaged at a pleasant 73.2°F (22.9°C).

Heat index

During September, the heat index is evaluated at a scorching 105.8°F (41°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. 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. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

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

Rainfall

In Manhatten, Florida, in September, it is raining for 23.7 days, with typically 4.33" (110mm) of accumulated precipitation. Throughout the year, in Manhatten, Florida, there are 203.7 rainfall days, and 39.09" (993mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Manhatten, Florida, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:12 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September in Manhatten is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot does it get in Manhatten in September?

In Manhatten, in September, the average high-temperature is 88.5°F (31.4°C), and the average low-temperature is 73.2°F (22.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), 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 in Manhatten?

The months with the highest humidity in Manhatten, Florida, are August and September, with an average relative humidity of 78%.

What is the average humidity in September in Manhatten?

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

How many days does it rain in September in Manhatten?

In Manhatten, Florida, in September, during 23.7 rainfall days, 4.33" (110mm) of precipitation is typically accumulated.

When it does not snow in Manhatten?

February through December are months without snowfall in Manhatten.

How many hours of daylight does Manhatten have in September?

In Manhatten, Florida, the average day length in September is 12h and 19min.

What time are sunrise and sunset in September in Manhatten?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:12 pm EDT.

How many hours of sunshine does Manhatten have in September?

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

What is the UV index intensity in September in Manhatten?

In September, the average daily maximum UV index in Manhatten is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Manhatten, FL

Average temperature in September - Manhatten, FL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (67.1°F).

  • Average low temperature in September: 73.2°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 (48.9°F).

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Average pressure in September
Manhatten, FL

Average pressure in September - Manhatten, 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).

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Average wind speed in September
Manhatten, FL

Average wind speed in September - Manhatten, FL
  • 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).

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Average humidity in September
Manhatten, FL

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

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

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Average rainfall in September
Manhatten, FL

Average rainfall in September - Manhatten, FL
  • Average rainfall in September: 4.33"

The wettest month (with the highest rainfall) is July (6.3").
The driest month (with the least rainfall) is March (1.42").

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Average rainfall days in September
Manhatten, FL

Average rainfall days in September - Manhatten, FL
  • Average rainfall days in September: 23.7 days

The month with the highest number of rainy days is August (28.2 days).
The month with the least rainy days is November (10 days).

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Average snowfall days in September
Manhatten, FL

Average snowfall days in September - Manhatten, 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).

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

Average daylight in September / Average sunshine in September - Manhatten, 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 months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in September
Manhatten, FL

Average sunshine days in September - Manhatten, FL
  • Average sunshine days in September: 4.3 days

The month with the most sunshine days is January (18 days).
The month with the least sunshine days is August (1.3 days).

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Average UV index in September
Manhatten, FL

Average UV index in September - Manhatten, 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
Manhatten, FL

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

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

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Average visibility in September
Manhatten, FL

Average visibility in September - Manhatten, 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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Manhatten, Florida, USA

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