Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 76.5°F (24.7°C) in August to an agreeable 71.1°F (21.7°C). Nighttime temperature sees a small decrement from daytime highs, dipping to an average of 65.5°F (18.6°C) during September.Humidity
The average relative humidity in September in Westhampton Beach is 76%.Rainfall
In Westhampton Beach, in September, it is raining for 12.9 days, with typically 2.05" (52mm) of accumulated precipitation. In Westhampton Beach, during the entire year, the rain falls for 148 days and collects up to 29.76" (756mm) of precipitation.Snowfall
April, June through November are months without snowfall in Westhampton Beach.Ocean temperature
In Westhampton Beach, in September, the average water temperature is 69.1°F (20.6°C).Note: For most individuals, swimming in 69.1°F (20.6°C) is not enjoyable. As the water temperature decreases from 69.8°F (21°C) to 59°F (15°C), breathing control becomes increasingly difficult.
Daylight
In September, the average length of the day in Westhampton Beach is 12h and 27min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:22 pm. On the last day of September, in Westhampton Beach, sunrise is at 6:46 am and sunset at 6:33 pm EDT.
Sunshine
In Westhampton Beach, the average sunshine in September is 9.1h.UV index
In Westhampton Beach, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What are September temperatures in Westhampton Beach?
What is the average humidity in September in Westhampton Beach?
How much does it rain in Westhampton Beach in September?
When it does not snow in Westhampton Beach?
What is the ocean temperature in September in Westhampton Beach?
How many hours of daylight does Westhampton Beach have in September?
What time are sunrise and sunset in September in Westhampton Beach?
How many hours of sunshine does Westhampton Beach have in September?
What is the UV index reading in September in Westhampton Beach?
Average temperature in September
Westhampton Beach, NY
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 65.5°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in September
Westhampton 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 (29.93"Hg).
Average wind speed in September
Westhampton Beach, NY
- Average wind speed in September: 11.9mph
The windiest month (with the highest average wind speed) is January (15.4mph).
The calmest month (with the lowest average wind speed) is July (10.2mph).
Average humidity in September
Westhampton Beach, NY
- Average humidity in September: 76%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in September
Westhampton Beach, NY
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in September
Westhampton Beach, NY
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Westhampton Beach, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in September
Westhampton Beach, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in September
Westhampton Beach, NY
- Average sea temperature in September: 69.1°F
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (38°F).
Average daylight in September /
Average sunshine in September
Westhampton Beach, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Westhampton Beach, NY
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in September
Westhampton Beach, NY
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in September
Westhampton Beach, NY
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Westhampton Beach, NY
- 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).
Westhampton Beach, New York, USA
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