September weather forecast
Bay Port, MI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Bay Port, Michigan, with an average temperature fluctuating between 55.9°F (13.3°C) and 68.4°F (20.2°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 74.5°F (23.6°C) to a pleasant 68.4°F (20.2°C). Throughout September, the temperature in Bay Port tends to fall to a consistent average low of 55.9°F (13.3°C).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Bay Port, in September, it is raining for 13.1 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, in Bay Port, there are 150.8 rainfall days, and 22.99" (584mm) of precipitation is accumulated.

Snowfall

In Bay Port, Michigan, snow does not fall in May through October.

Daylight

In Bay Port, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:57 am and sunset at 8:08 pm. On the last day of September, in Bay Port, sunrise is at 7:30 am and sunset at 7:15 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In September, the average daily maximum UV index in Bay Port, Michigan, is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 3 in September suggests the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What is the temperature in September in Bay Port?

An average high-temperature, in September, in Bay Port, is 68.4°F (20.2°C) and the average low-temperature is 55.9°F (13.3°C).

What is the average humidity in September in Bay Port?

The average relative humidity in September in Bay Port, Michigan, is 79%.

How much does it rain in Bay Port in September?

In Bay Port, during September, the rain falls for 13.1 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Bay Port?

May through October are months without snowfall in Bay Port, Michigan.

How many hours of daylight does Bay Port have in September?

The average day length in September in Bay Port, Michigan, is 12h and 29min.

When are sunrise and sunset in September in Bay Port?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:15 pm EDT.

How long on average sun shines in September in Bay Port?

In September, the average sunshine duration in Bay Port is 8.2h.

What is the UV index reading in September in Bay Port?

In Bay Port, Michigan, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Bay Port, MI

Average temperature in September - Bay Port, MI
  • Average high temperature in September: 68.4°F

The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in September
Bay Port, MI

Average pressure in September - Bay Port, MI
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Bay Port, MI

Average wind speed in September - Bay Port, MI
  • Average wind speed in September: 8.9mph

The windiest months (with the highest average wind speed) are January and December (11.9mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in September
Bay Port, MI

Average humidity in September - Bay Port, MI
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (77%).

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Average rainfall in September
Bay Port, MI

Average rainfall in September - Bay Port, MI
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is February (1.26").

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Average rainfall days in September
Bay Port, MI

Average rainfall days in September - Bay Port, MI
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is October (16.3 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in September
Bay Port, MI

Average snowfall in September - Bay Port, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.9").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Bay Port, MI

Average snowfall days in September - Bay Port, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Bay Port, MI

Average daylight in September / Average sunshine in September - Bay Port, MI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

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Average sunshine days in September
Bay Port, MI

Average sunshine days in September - Bay Port, MI
  • Average sunshine days in September: 15 days

The month with the most sunshine days is September (15 days).
The months with the least sunshine days are February and December (8.7 days).

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Average UV index in September
Bay Port, MI

Average UV index in September - Bay Port, MI
  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Bay Port, MI

Average cloud cover in September - Bay Port, MI
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in September
Bay Port, MI

Average visibility in September - Bay Port, MI
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Bay Port, Michigan, USA

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