September weather forecast
Severna Park, MD

Weather in September

September, the first month of the autumn in Severna Park, is still a warm month, with an average temperature varying between 63.3°F (17.4°C) and 77.4°F (25.2°C).

Temperature

In Severna Park, the average high-temperature in September marginally drops from a moderately hot 83.7°F (28.7°C) in August to a still warm 77.4°F (25.2°C). In September, in Severna Park, Maryland, the average low-temperature is 63.3°F (17.4°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

In Severna Park, snow does not fall in May through October.

Ocean temperature

In Severna Park, 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 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 7:37 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:50 pm EDT.

Sunshine

In Severna Park, the average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 in September 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Severna Park?

The average relative humidity in September in Severna Park is 75%.

What is the driest month in Severna Park?

The month with the least rainfall in Severna Park, Maryland, is September, when the rain falls for 11.8 days and typically collects 1.89" (48mm) of precipitation.

How much does it rain in Severna Park in September?

In Severna Park, during September, the rain falls for 11.8 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow in Severna Park?

In Severna Park, Maryland, snow does not fall in May through October.

How warm is the water in September in Severna Park?

In Severna Park, the average seawater temperature in September is 73.6°F (23.1°C). 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.

What is the average length of the day in September in Severna Park?

The average day length in September in Severna Park, Maryland, is 12h and 26min.

When is the sunrise / sunset in September in Severna Park?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:50 pm EDT.

How long on average sun shines in September in Severna Park?

In Severna Park, Maryland, the average sunshine duration in September is 9.2h.

What is the UV index reading in September in Severna Park?

In Severna Park, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Severna Park, MD

Average temperature in September - Severna Park, MD
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in September
Severna Park, MD

Average pressure in September - Severna Park, MD
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Severna Park, MD

Average wind speed in September - Severna Park, MD
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in September
Severna Park, MD

Average humidity in September - Severna Park, 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
Severna Park, MD

Average rainfall in September - Severna Park, MD
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in September
Severna Park, MD

Average rainfall days in September - Severna Park, MD
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in September
Severna Park, MD

Average snowfall in September - Severna Park, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Severna Park, MD

Average snowfall days in September - Severna Park, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The 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
Severna Park, MD

Average sea temperature in September - Severna Park, 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 (44.5°F).

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Average daylight in September /
Average sunshine in September
Severna Park, MD

Average daylight in September / Average sunshine in September - Severna Park, MD
  • Average daylight in September: 12h and 26min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in September: 9h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in September
Severna Park, MD

Average sunshine days in September - Severna Park, MD
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in September
Severna Park, MD

Average UV index in September - Severna Park, 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, November and December (UV index 2).

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Average cloud cover in September
Severna Park, MD

Average cloud cover in September - Severna Park, MD
  • Average cloud cover in September: 34

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
Severna Park, MD

Average visibility in September - Severna Park, 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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