September weather forecastSylvan Beach, NY
September
Weather in September
September, the first month of the autumn in Sylvan Beach, is also an agreeable month, with an average temperature ranging between max 70°F (21.1°C) and min 51.1°F (10.6°C).Temperature
September indicates a minor shift in the average high-temperature, from August's warm 76.3°F (24.6°C) to a pleasant 70°F (21.1°C). During the nights in September, Sylvan Beach experiences a consistent average temperature of 51.1°F (10.6°C).Humidity
In Sylvan Beach, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 2.01" (51mm) of precipitation.Snowfall
June through September are months without snowfall in Sylvan Beach.Daylight
In Sylvan Beach, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:37 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Make use of precautions - It is urged to ward off sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sylvan Beach, NY
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in September
Sylvan Beach, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Sylvan Beach, NY
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Sylvan Beach, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in September
Sylvan Beach, NY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Sylvan Beach, NY
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Sylvan Beach, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sylvan Beach, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sylvan Beach, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in September
Sylvan Beach, NY
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in September
Sylvan Beach, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Sylvan Beach, NY
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Sylvan Beach, NY
- Average visibility in September: 5mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January and February (4mi).
