September weather forecast
South Kensington, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in South Kensington, Maryland, with an average temperature varying between 78.4°F (25.8°C) and 61.5°F (16.4°C).

Temperature

In South Kensington, the average high-temperature in September slightly decreases from 85.8°F (29.9°C) in August to a still moderately hot 78.4°F (25.8°C). In the month of September, South Kensington witnesses a consistent average low-temperature of 61.5°F (16.4°C).

Humidity

In September, the average relative humidity in South Kensington is 73%.

Rainfall

In South Kensington, in September, it is raining for 12.5 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 150.3 rainfall days, and 28.66" (728mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:52 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in South Kensington, records 78.4°F (25.8°C), while the low-temperature is 61.5°F (16.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 95°F (35°C).

What is the average humidity in September?

In South Kensington, the average relative humidity in September is 73%.

How much does it rain in September?

In South Kensington, during September, the rain falls for 12.5 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

In South Kensington, snow does not fall in May through October.

What is the average length of the day 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 6:37 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.8h.

How high is the UV index in September?

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

Average temperature in September - South Kensington, MD
  • Average high temperature in September: 78.4°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in September: 61.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
South Kensington, MD

Average pressure in September - South Kensington, 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 (29.95"Hg).

Average wind speed in September
South Kensington, MD

Average wind speed in September - South Kensington, MD
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
South Kensington, MD

Average humidity in September - South Kensington, MD
  • Average humidity in September: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
South Kensington, MD

Average rainfall in September - South Kensington, MD
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").

Average rainfall days in September
South Kensington, MD

Average rainfall days in September - South Kensington, MD
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
South Kensington, MD

Average snowfall in September - South Kensington, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
South Kensington, MD

Average snowfall days in September - South Kensington, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.4 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 Kensington, MD

Average daylight in September / Average sunshine in September - South Kensington, 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: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).

Average sunshine days in September
South Kensington, MD

Average sunshine days in September - South Kensington, MD
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).

Average UV index in September
South Kensington, MD

Average UV index in September - South Kensington, 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).

Average cloud cover in September
South Kensington, MD

Average cloud cover in September - South Kensington, MD
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
South Kensington, MD

Average visibility in September - South Kensington, MD
  • Average visibility in September: 6mi

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

South Kensington, Maryland, USA

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