September weather forecast
Bayville, NY

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Weather in September

September, the first month of the autumn in Bayville, is still a warm month, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 73.4°F (23°C).

Temperature

The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 80.4°F (26.9°C) in August to a still warm 73.4°F (23°C). Bayville experiences a consistent average temperature of 63.5°F (17.5°C) throughout the nights in September.

Humidity

In Bayville, New York, the average relative humidity in September is 73%.

Rainfall

The month with the least rainfall in Bayville, New York, is September, when the rain falls for 12.9 days and typically collects 2.4" (61mm) of precipitation.

Snowfall

In Bayville, snow does not fall in May through October.

Ocean temperature

In Bayville, in September, the average water temperature is 70.2°F (21.2°C).
Note: In water with a temperature of 70.2°F (21.2°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index in Bayville is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice! The Sun's UV exposure elevates with sand and water reflections.
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Frequently asked questions

What is the average September temperature in Bayville?

During September, Bayville experiences an average high-temperature of 73.4°F (23°C) and a low-temperature of 63.5°F (17.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in July is estimated at 86°F (30°C).

What is the average humidity in September in Bayville?

In Bayville, New York, the average relative humidity in September is 73%.

What is the driest month in Bayville?

September is the month with the least rainfall in Bayville, New York. Rain falls for 12.9 days and accumulates 2.4" (61mm) of precipitation.

How much does it rain in Bayville in September?

In Bayville, during September, the rain falls for 12.9 days and regularly aggregates up to 2.4" (61mm) of precipitation.

When it does not snow in Bayville?

In Bayville, New York, snow does not fall in May through October.

What is the ocean temperature in September in Bayville?

In September, the average ocean temperature is 70.2°F (21.2°C). For swimming, a surface water temperature of 70.2°F (21.2°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in September in Bayville?

The average day length in September is 12h and 27min.

What time are sunrise and sunset in September in Bayville?

On the first day of September in Bayville, New York, sunrise is at 6:21 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How long on average sun shines in September in Bayville?

The average sunshine duration in September in Bayville, New York, is 9h.

How high is the UV index in September in Bayville?

In Bayville, New York, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from 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
Bayville, NY

Average temperature in September - Bayville, NY
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in September: 63.5°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in September
Bayville, NY

Average pressure in September - Bayville, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Bayville, NY

Average wind speed in September - Bayville, NY
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in September
Bayville, NY

Average humidity in September - Bayville, NY
  • Average humidity in September: 73%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

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Average rainfall in September
Bayville, NY

Average rainfall in September - Bayville, NY
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in September
Bayville, NY

Average rainfall days in September - Bayville, NY
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in September
Bayville, NY

Average snowfall in September - Bayville, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Bayville, NY

Average snowfall days in September - Bayville, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in September
Bayville, NY

Average sea temperature in September - Bayville, NY
  • Average sea temperature in September: 70.1°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

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Average daylight in September /
Average sunshine in September
Bayville, NY

Average daylight in September / Average sunshine in September - Bayville, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Bayville, NY

Average sunshine days in September - Bayville, NY
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in September
Bayville, NY

Average UV index in September - Bayville, 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, November and December (UV index 2).

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Average cloud cover in September
Bayville, NY

Average cloud cover in September - Bayville, NY
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in September
Bayville, NY

Average visibility in September - Bayville, 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).

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Bayville, New York, USA

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