September weather forecast
South Down Shores, MD

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Weather in September

September, the first month of the autumn in South Down Shores, is also a moderately hot month, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 77°F (25°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from 83.3°F (28.5°C) in August to a still moderately hot 77°F (25°C). South Down Shores experiences a nighttime temperature average of 64.6°F (18.1°C) during September.

Humidity

In South Down Shores, the average relative humidity in September is 75%.

Rainfall

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

Snowfall

In South Down Shores, snow does not fall in April through October.

Daylight

In South Down Shores, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:50 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during September translates into the following guidance:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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.

Frequently asked questions

What is the temperature in September in South Down Shores?

In September, the average high-temperature and low-temperature in South Down Shores are 77°F (25°C) and 64.6°F (18.1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is evaluated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How many days does it rain in September?

In September, the rain falls for 10.5 days. Throughout September, 0.63" (16mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does South Down Shores have in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:35 am and sunset at 7:36 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?

The average sunshine duration in September is 9.2h.

How high is the UV index in September?

In South Down Shores, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
South Down Shores, MD

Average temperature in September - South Down Shores, 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).

Average pressure in September
South Down Shores, MD

Average pressure in September - South Down Shores, 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).

Average wind speed in September
South Down Shores, MD

Average wind speed in September - South Down Shores, 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).

Average humidity in September
South Down Shores, MD

Average humidity in September - South Down Shores, 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%).

Average rainfall in September
South Down Shores, MD

Average rainfall in September - South Down Shores, 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").

Average rainfall days in September
South Down Shores, MD

Average rainfall days in September - South Down Shores, 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).

Average snowfall in September
South Down Shores, MD

Average snowfall in September - South Down Shores, 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").

Average snowfall days in September
South Down Shores, MD

Average snowfall days in September - South Down Shores, 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).

Average daylight in September /
Average sunshine in September
South Down Shores, MD

Average daylight in September / Average sunshine in September - South Down Shores, 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).

Average sunshine days in September
South Down Shores, MD

Average sunshine days in September - South Down Shores, 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).

Average UV index in September
South Down Shores, MD

Average UV index in September - South Down Shores, 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).

Average cloud cover in September
South Down Shores, MD

Average cloud cover in September - South Down Shores, 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).

Average visibility in September
South Down Shores, MD

Average visibility in September - South Down Shores, 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).

South Down Shores, Maryland, USA

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