September weather forecast
Ocean City, MD

The Ocean city in Maryland, with water on both sides of the city
The Ocean city in Maryland, with water on both sides of the city

Weather in September

The first month of the autumn, September, is also a moderately hot month in Ocean City, Maryland, with average temperature varying between 69.4°F (20.8°C) and 74.3°F (23.5°C).

Temperature

In Ocean City, the average high-temperature in September is almost the same as in August - a still warm 74.3°F (23.5°C). In September, the average low-temperature is 69.4°F (20.8°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 13.3 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 150.3 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

In Ocean City snow does not fall in April through October.

Ocean temperature

In Ocean City, in September, the average water temperature is 73.6°F (23.1°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 73.6°F (23.1°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In Ocean City, the average length of the day in September is 12.4h.

Sunshine

In Ocean City, the average sunshine in September is 9.5h.

UV index

The average daily maximum UV index in Ocean City, Maryland, is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in September in Ocean City?

The average relative humidity in September in Ocean City is 77%.

How much does it rain in Ocean City in September?

In Ocean City, Maryland, in September, during 13.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Ocean City?

In Ocean City, Maryland, snow does not fall in April through October.

What is the water temperature in September in Ocean City?

In Ocean City, the average seawater temperature in September is 73.6°F (23.1°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 73.6°F (23.1°C).

What is the average length of the day in September in Ocean City?

The average length of the day in September in Ocean City is 12.4h.

How long on average sun shines in September in Ocean City?

In September, the average sunshine is 9.5h.

What is the UV index reading in September in Ocean City?

The average daily maximum UV index in September in Ocean City is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in September
Ocean City, MD

Average temperature in September - Ocean City, MD
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in September: 69.4°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

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Average pressure in September
Ocean City, MD

Average pressure in September - Ocean City, MD
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in September
Ocean City, MD

Average wind speed in September - Ocean City, MD
  • Average wind speed in September: 11.5mph

The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).

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Average humidity in September
Ocean City, MD

Average humidity in September - Ocean City, MD
  • Average humidity in September: 77%

The month with the highest relative humidity is May (82%).
Months with the lowest relative humidity are January and November (74%).

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Average rainfall in September
Ocean City, MD

Average rainfall in September - Ocean City, MD
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in September
Ocean City, MD

Average rainfall days in September - Ocean City, MD
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in September
Ocean City, MD

Average snowfall in September - Ocean City, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.39").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Ocean City, MD

Average snowfall days in September - Ocean City, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in September
Ocean City, MD

Average sea temperature in September - Ocean City, MD
  • Average sea temperature in September: 73.5°F

The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (41.9°F).

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Average daylight in September /
Average sunshine in September
Ocean City, MD

Average daylight in September / Average sunshine in September - Ocean City, MD
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.5h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5.2h).

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Average sunshine days in September
Ocean City, MD

Average sunshine days in September - Ocean City, MD
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in September
Ocean City, MD

Average UV index in September - Ocean City, MD
  • Average UV index in September: 5

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

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Average cloud cover in September
Ocean City, MD

Average cloud cover in September - Ocean City, MD
  • Average cloud cover in September: 31

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in September
Ocean City, MD

Average visibility in September - Ocean City, MD
  • Average visibility in September: 6mi

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

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