September weather forecast
Miami, AZ

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Weather in September

September, the first month of the autumn in Miami, is still a hot month, with an average temperature ranging between min 67.1°F (19.5°C) and max 86.5°F (30.3°C).

Temperature

Miami experiences a recorded average high-temperature of a still hot 86.5°F (30.3°C) in September, closely aligned with August's 91.9°F (33.3°C). During the nights in September, the temperature in Miami averages to an enjoyable 67.1°F (19.5°C).

Heat index

During September, the heat index is calculated to be a tropical 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to 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.

Humidity

The average relative humidity in September is 40%.

Rainfall

In September, the rain falls for 11 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. Throughout the year, in Miami, there are 90.6 rainfall days, and 14.88" (378mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 5:58 am and sunset at 6:48 pm. On the last day of September, sunrise is at 6:17 am and sunset at 6:08 pm MST.

Sunshine

In Miami, the average sunshine in September is 9.8h.

UV index

The average daily maximum UV index in September in Miami is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during September translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

How hot is September in Miami?

The average high-temperature and low-temperature during September are 86.5°F (30.3°C) and 67.1°F (19.5°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in September in Miami?

The average relative humidity in September is 40%.

How much does it rain in Miami in September?

In Miami, Arizona, in September, it is raining for 11 days, with typically 1.73" (44mm) of accumulated precipitation.

When it does not snow in Miami?

May through October are months without snowfall in Miami, Arizona.

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

In September, the average day length is 12h and 22min.

What time are sunrise and sunset in September in Miami?

In September, on the first day of the month, sunrise is at 5:58 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 6:08 pm MST.

How many hours of sunshine does Miami have in September?

In Miami, the average sunshine duration in September is 9.8h.

What is the UV index reading in September in Miami?

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

Average temperature in September
Miami, AZ

Average temperature in September - Miami, AZ
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is August (73.2°F).
The coldest months (with the lowest average low temperature) are January and December (38.3°F).

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Average pressure in September
Miami, AZ

Average pressure in September - Miami, AZ
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in September
Miami, AZ

Average wind speed in September - Miami, AZ
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Miami, AZ

Average humidity in September - Miami, AZ
  • Average humidity in September: 40%

The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in September
Miami, AZ

Average rainfall in September - Miami, AZ
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is June (0.24").

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Average rainfall days in September
Miami, AZ

Average rainfall days in September - Miami, AZ
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is June (3.5 days).

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Average snowfall in September
Miami, AZ

Average snowfall in September - Miami, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Miami, AZ

Average snowfall days in September - Miami, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Miami, AZ

Average daylight in September / Average sunshine in September - Miami, AZ
  • Average daylight in September: 12h and 2min

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

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Miami, AZ

Average sunshine days in September - Miami, AZ
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is March (26 days).
The month with the least sunshine days is July (10 days).

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Average UV index in September
Miami, AZ

Average UV index in September - Miami, AZ
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Miami, AZ

Average cloud cover in September - Miami, AZ
  • Average cloud cover in September: 13

The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 7).

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Average visibility in September
Miami, AZ

Average visibility in September - Miami, AZ
  • 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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Miami, Arizona, USA

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