September weather forecast
Oyster Harbor, MD

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Weather in September

September, the first month of the autumn in Oyster Harbor, is also a moderately hot month, with an average temperature varying between 64.6°F (18.1°C) and 77°F (25°C).

Temperature

As August makes way for September, Oyster Harbor's average high-temperature eases from 83.3°F (28.5°C) to a still warm 77°F (25°C). Throughout September, the average low-temperature records at an enjoyable 64.6°F (18.1°C).

Humidity

In September, the average relative humidity in Oyster Harbor is 75%.

Rainfall

In Oyster Harbor, in September, it is raining for 10.5 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Oyster Harbor, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

In Oyster Harbor, Maryland, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of September, in Oyster Harbor, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

In September, the average sunshine in Oyster Harbor is 9.2h.

UV index

In Oyster Harbor, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What are September temperatures in Oyster Harbor?

During September, Oyster Harbor experiences an average high-temperature of 77°F (25°C) and a low-temperature of 64.6°F (18.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in September in Oyster Harbor?

In September, the average relative humidity in Oyster Harbor is 75%.

How much does it rain in Oyster Harbor in September?

In Oyster Harbor, Maryland, in September, it is raining for 10.5 days, with typically 0.63" (16mm) of accumulated precipitation.

When it does not snow in Oyster Harbor?

In Oyster Harbor, Maryland, snow does not fall in April through October.

What is the average length of the day in September in Oyster Harbor?

In Oyster Harbor, Maryland, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Oyster Harbor?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

How many hours of sunshine does Oyster Harbor have in September?

In September, the average sunshine duration in Oyster Harbor, Maryland, is 9.2h.

What is the UV index reading in September in Oyster Harbor?

The average daily maximum UV index in September in Oyster Harbor is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Oyster Harbor, MD

Average temperature in September - Oyster Harbor, MD
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in September
Oyster Harbor, MD

Average pressure in September - Oyster Harbor, MD
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Oyster Harbor, MD

Average wind speed in September - Oyster Harbor, MD
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in September
Oyster Harbor, MD

Average humidity in September - Oyster Harbor, MD
  • Average humidity in September: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in September
Oyster Harbor, MD

Average rainfall in September - Oyster Harbor, MD
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in September
Oyster Harbor, MD

Average rainfall days in September - Oyster Harbor, MD
  • Average rainfall days in September: 10.5 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in September
Oyster Harbor, MD

Average snowfall in September - Oyster Harbor, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Oyster Harbor, MD

Average snowfall days in September - Oyster Harbor, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 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
Oyster Harbor, MD

Average daylight in September / Average sunshine in September - Oyster Harbor, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in September
Oyster Harbor, MD

Average sunshine days in September - Oyster Harbor, MD
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in September
Oyster Harbor, MD

Average UV index in September - Oyster Harbor, MD
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Oyster Harbor, MD

Average cloud cover in September - Oyster Harbor, MD
  • Average cloud cover in September: 33

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Oyster Harbor, MD

Average visibility in September - Oyster Harbor, MD
  • 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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Oyster Harbor, Maryland, USA

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