September Weather in Bayville, United States

Last updated: June 24, 2025

In September, the average temperature in Bayville, United States hovers around 21°C (69°F), offering a pleasant climate ideal for outdoor activities. Expect a minimum of 9°C (48°F) and a maximum of 32°C (90°F), making it a season of diverse weather experiences. With approximately 93 mm (3.6 in) of precipitation spread over 9 days, it's wise to keep an umbrella handy. The average humidity rests at a comfortable 68%, adding to the region's inviting atmosphere.

September Temperature in Bayville

In September in Bayville, the average temperature is 21°C (69°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 9°C (48°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while packing for both warm days and cooler evenings.

September Weather in Bayville: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bayville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayville, September typically has an average temperature of 21°C (69°F), with highs reaching up to 32°C (90°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for Bayville generated using information from the Copernicus Climate Change Service.

September Precipitation in Bayville

In Bayville in September, the precipitation amount is 93 mm (3.6 in) during a span of 9 days.

September Precipitation Trends in Bayville

The chart displays monthly precipitation patterns in Bayville, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Bayville, September typically receives around 93 mm (3.6 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Bayville

In Bayville in September humidity is 68%. With average temperature 21°C (69°F), this humidity feels like a warm embrace, making it essential for travelers to stay hydrated and take breaks in the shade while exploring the local sights.

September Average Humidity in Bayville

This chart illustrates the average monthly humidity levels in Bayville, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Bayville is approximately 68%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bayville

In Bayville in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Bayville.

Maximum UV Index Levels in Bayville for September

The chart shows the monthly maximum UV Index (UVI) for Bayville in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Bayville typically reaches 8, which falls under the very high exposure category.

Data source: Bayville September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Bayville Compares to Other Months

Weather in Bayville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bayville, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bayville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	69 mm (2.7 inches)	84%	moderate
February Weather	2°C (36°F)	101 mm (4.0 inches)	82%	moderate
March Weather	5°C (41°F)	93 mm (3.7 inches)	81%	high
April Weather	10°C (50°F)	116 mm (4.6 inches)	78%	very high
May Weather	15°C (60°F)	112 mm (4.4 inches)	69%	very high
June Weather	21°C (70°F)	93 mm (3.7 inches)	69%	very high
July Weather	25°C (77°F)	139 mm (5.5 inches)	62%	very high
August Weather	24°C (75°F)	118 mm (4.6 inches)	65%	very high
September Weather	21°C (69°F)	93 mm (3.6 inches)	68%	very high
October Weather	15°C (60°F)	131 mm (5.2 inches)	74%	high
November Weather	8°C (47°F)	90 mm (3.6 inches)	82%	moderate
December Weather	3°C (39°F)	113 mm (4.5 inches)	80%	low