September weather forecast
Bellaire, MI

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Weather in September

September, the first month of the autumn in Bellaire, is still a comfortable month, with temperature in the range of an average low of 53.1°F (11.7°C) and an average high of 67.3°F (19.6°C).

Temperature

With the arrival of September, Bellaire notices a mild change in the average high-temperature, sliding from August's moderately hot 73.6°F (23.1°C) to a comfortable 67.3°F (19.6°C). During the nights in September, an average low-temperature of 53.1°F (11.7°C) is observed.

Humidity

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

Rainfall

In September, the rain falls for 12.9 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, in Bellaire, there are 132 rainfall days, and 25.47" (647mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Bellaire, the average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 7:03 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:22 pm EDT.

Sunshine

The average sunshine in September is 7.9h.

UV index

In September, the average daily maximum UV index in Bellaire is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 3 in September translates into this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

What are September temperatures?

Bellaire in September has an average high-temperature of 67.3°F (19.6°C) and an average low-temperature of 53.1°F (11.7°C).

What is the average humidity in September?

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

How much does it rain in September?

In Bellaire, during September, the rain falls for 12.9 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

June through September are months without snowfall in Bellaire.

Does it snow in September?

In Bellaire, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Bellaire have in September?

The average day length in September in Bellaire is 12h and 31min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:22 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 7.9h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Bellaire, MI

Average temperature in September - Bellaire, MI
  • Average high temperature in September: 67.3°F

The warmest months (with the highest average high temperature) are July and August (73.6°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in September: 53.1°F

The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is February (17.2°F).

Average pressure in September
Bellaire, MI

Average pressure in September - Bellaire, MI
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Bellaire, MI

Average wind speed in September - Bellaire, MI
  • Average wind speed in September: 8.6mph

The windiest month (with the highest average wind speed) is December (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in September
Bellaire, MI

Average humidity in September - Bellaire, MI
  • Average humidity in September: 78%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (75%).

Average rainfall in September
Bellaire, MI

Average rainfall in September - Bellaire, MI
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is February (1.5").

Average rainfall days in September
Bellaire, MI

Average rainfall days in September - Bellaire, MI
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is October (17.3 days).
The month with the least rainy days is February (4 days).

Average snowfall in September
Bellaire, MI

Average snowfall in September - Bellaire, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (6.81").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bellaire, MI

Average snowfall days in September - Bellaire, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bellaire, MI

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).

Average sunshine days in September
Bellaire, MI

Average sunshine days in September - Bellaire, MI
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is January (6.9 days).

Average UV index in September
Bellaire, MI

Average UV index in September - Bellaire, 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, February, March, November and December (UV index 1).

Average cloud cover in September
Bellaire, MI

Average cloud cover in September - Bellaire, MI
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Bellaire, MI

Average visibility in September - Bellaire, MI
  • Average visibility in September: 6mi

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

Bellaire, Michigan, USA

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