September weather forecast
Rock Hill Beach, MD

Share

Weather in September

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

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 83.7°F (28.7°C) in August to a still warm 77.4°F (25.2°C). An average low-temperature of 63.3°F (17.4°C) is common during the nights of September.

Humidity

The average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

In Rock Hill Beach, snow does not fall in May 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 7:36 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

In Rock Hill Beach, the average sunshine in September is 9.2h.

UV index

In Rock Hill Beach, Maryland, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 in September translates into these instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What is the temperature in September?

The high-temperature, in September, in Rock Hill Beach, is 77.4°F (25.2°C), while the low-temperature averages to 63.3°F (17.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

What is the driest month in Rock Hill Beach?

The month with the least rainfall in Rock Hill Beach, 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 September?

In Rock Hill Beach, in September, it is raining for 11.8 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in September in Rock Hill Beach?

In September, the average day length is 12h and 26min.

What time are sunrise and 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 6:49 pm EDT.

How many hours of sunshine does Rock Hill Beach have in September?

The average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In Rock Hill Beach, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Rock Hill Beach, MD

Average temperature in September - Rock Hill Beach, 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).

Average pressure in September
Rock Hill Beach, MD

Average pressure in September - Rock Hill Beach, 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).

Average wind speed in September
Rock Hill Beach, MD

Average wind speed in September - Rock Hill Beach, 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).

Average humidity in September
Rock Hill Beach, MD

Average humidity in September - Rock Hill Beach, 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
Rock Hill Beach, MD

Average rainfall in September - Rock Hill Beach, 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").

Average rainfall days in September
Rock Hill Beach, MD

Average rainfall days in September - Rock Hill Beach, 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).

Average snowfall in September
Rock Hill Beach, MD

Average snowfall in September - Rock Hill Beach, 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").

Average snowfall days in September
Rock Hill Beach, MD

Average snowfall days in September - Rock Hill Beach, 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).

Average daylight in September /
Average sunshine in September
Rock Hill Beach, MD

Average daylight in September / Average sunshine in September - Rock Hill Beach, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Rock Hill Beach, MD

Average sunshine days in September - Rock Hill Beach, 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).

Average UV index in September
Rock Hill Beach, MD

Average UV index in September - Rock Hill Beach, 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
Rock Hill Beach, MD

Average cloud cover in September - Rock Hill Beach, 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).

Average visibility in September
Rock Hill Beach, MD

Average visibility in September - Rock Hill Beach, 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).

Rock Hill Beach, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location