September weather forecastRolles Beach, MD
September
Weather in September
The first month of the autumn, September, is still a warm month in Rolles Beach, Maryland, with an average temperature ranging between min 64°F (17.8°C) and max 76.8°F (24.9°C).Temperature
In Rolles Beach, the average high-temperature in September gently drops from a warm 82.9°F (28.3°C) in August to a still moderately hot 76.8°F (24.9°C). An average low-temperature of 64°F (17.8°C) is observed during the September nights.Humidity
In September, the average relative humidity is 77%.Rainfall
In Rolles Beach, in September, it is raining for 14.3 days, with typically 2.36" (60mm) of accumulated precipitation. In Rolles Beach, during the entire year, the rain falls for 157 days and collects up to 32.91" (836mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:48 pm EDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rolles Beach, MD
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
Rolles Beach, 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
Rolles Beach, MD
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Rolles Beach, MD
- Average humidity in September: 77%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in September
Rolles Beach, MD
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Rolles Beach, MD
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is May (17.2 days).
The months with the least rainy days are January and November (8.8 days).
Average snowfall in September
Rolles Beach, MD
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rolles Beach, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.2 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
Rolles Beach, MD
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 30min
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 12min).
Average sunshine days in September
Rolles Beach, MD
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and August (11.8 days).
Average UV index in September
Rolles 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 and December (UV index 2).
Average cloud cover in September
Rolles Beach, MD
- Average cloud cover in September: 32
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Rolles 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).
