September weather forecast
Saint Josephs Villa, VA

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Weather in September

September, the first month of the autumn in Saint Josephs Villa, is also a moderately hot month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 80.8°F (27.1°C).

Temperature

September signifies a minor drop in average high-temperature, transitioning from a tropical 87.8°F (31°C) in August to a warm 80.8°F (27.1°C). An average nighttime temperature of 62.2°F (16.8°C) is observed during September.

Heat index

The average heat index in September is calculated to be 84.2°F (29°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

The average relative humidity in September in Saint Josephs Villa is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Saint Josephs Villa, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:54 pm EDT.

Sunshine

In Saint Josephs Villa, the average sunshine in September is 8.8h.

UV index

In Saint Josephs Villa, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Saint Josephs Villa in September?

In Saint Josephs Villa, 80.8°F (27.1°C) is the average high-temperature and 62.2°F (16.8°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 84.2°F (29°C).

What is the average humidity in September?

In Saint Josephs Villa, the average relative humidity in September is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.69" (43mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 11.6 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow?

In Saint Josephs Villa, snow does not fall in May through October.

How many hours of daylight does Saint Josephs Villa have in September?

In September, the average day length in Saint Josephs Villa is 12h and 25min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:54 pm EDT.

How many hours of sunshine does Saint Josephs Villa have in September?

In Saint Josephs Villa, the average sunshine duration in September is 8.8h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
Saint Josephs Villa, VA

Average temperature in September - Saint Josephs Villa, VA
  • Average high temperature in September: 80.8°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (43.9°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

Average pressure in September
Saint Josephs Villa, VA

Average pressure in September - Saint Josephs Villa, VA
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Saint Josephs Villa, VA

Average wind speed in September - Saint Josephs Villa, VA
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Saint Josephs Villa, VA

Average humidity in September - Saint Josephs Villa, VA
  • Average humidity in September: 75%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Saint Josephs Villa, VA

Average rainfall in September - Saint Josephs Villa, VA
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in September
Saint Josephs Villa, VA

Average rainfall days in September - Saint Josephs Villa, VA
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in September
Saint Josephs Villa, VA

Average snowfall in September - Saint Josephs Villa, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Saint Josephs Villa, VA

Average snowfall days in September - Saint Josephs Villa, VA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (3.8 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
Saint Josephs Villa, VA

Average daylight in September / Average sunshine in September - Saint Josephs Villa, VA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Saint Josephs Villa, VA

Average sunshine days in September - Saint Josephs Villa, VA
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in September
Saint Josephs Villa, VA

Average UV index in September - Saint Josephs Villa, VA
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Saint Josephs Villa, VA

Average cloud cover in September - Saint Josephs Villa, VA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Saint Josephs Villa, VA

Average visibility in September - Saint Josephs Villa, VA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are May and December (5mi).

Saint Josephs Villa, Virginia, USA

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