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September Weather in Virginia, Ireland

Last updated: August 23, 2025

In September, the average temperature in Virginia, Ireland is a comfortable 13°C (56°F). Visitors can expect a minimum of 2°C (36°F) and a pleasant maximum of 24°C (76°F). The month sees 76 mm (3.0 in) of precipitation over approximately 12 days, coupled with an average humidity of 86%. Perfect for a cozy getaway! 🌧️🌤️

September Temperature in Virginia

In September in Virginia, the average temperature is 13°C (56°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop as low as 2°C (36°F). Overall, it's a great time to visit for those who enjoy mild weather and are prepared for some temperature variations.

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

The chart illustrates September temperature patterns in Virginia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Virginia, September typically has an average temperature of 13°C (56°F), with highs reaching up to 24°C (76°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475358615956514643
Data source: Temperature data for Virginia generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Virginia

In Virginia in September, the total precipitation amount is 76 mm (3.0 in), occurring over the course of 12 days.

September Precipitation Trends in Virginia

The chart displays monthly precipitation patterns in Virginia, 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 Virginia, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5793855071837811576838693
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Virginia

In Virginia in September, humidity is 86%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or air-conditioned spaces frequently.

September Average Humidity in Virginia

This chart illustrates the average monthly humidity levels in Virginia, 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 Virginia is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Virginia

In Virginia in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Virginia.

Maximum UV Index Levels in Virginia for September

The chart shows the monthly maximum UV Index (UVI) for Virginia 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 Virginia typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Virginia 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 Virginia Compares to Other Months

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

This table compares monthly weather conditions in Virginia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)57 mm (2.2 inches)85%low
February Weather6°C (43°F)93 mm (3.6 inches)86%low
March Weather7°C (44°F)85 mm (3.4 inches)86%moderate
April Weather8°C (48°F)50 mm (2.0 inches)85%moderate
May Weather11°C (53°F)71 mm (2.8 inches)83%high
June Weather14°C (58°F)83 mm (3.3 inches)85%very high
July Weather16°C (61°F)78 mm (3.1 inches)86%very high
August Weather15°C (59°F)115 mm (4.5 inches)85%high
September Weather13°C (56°F)76 mm (3.0 inches)86%moderate
October Weather10°C (51°F)82 mm (3.2 inches)87%moderate
November Weather8°C (46°F)86 mm (3.4 inches)86%low
December Weather6°C (43°F)93 mm (3.6 inches)84%low

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