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August Weather in Arlington, United States

Last updated: June 24, 2025

In August, the average temperature in Arlington, United States hovers around 21°C (71°F). Expect a range from a cool 10°C (50°F) to a warm 34°C (93°F). Rainfall contributes to the scenery with 106 mm (4.2 in) over 9 days, while the atmosphere remains quite humid with an average of 83%.

August Temperature in Arlington

In August in Arlington, the average temperature is 21°C (71°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as 10°C (50°F). It’s a great time to visit if you enjoy warm weather with some cooler evenings!

August Weather in Arlington: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Arlington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arlington, August typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec171632425771747064473425
Data source: Temperature data for Arlington 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.

August Precipitation in Arlington

In Arlington in August, the total precipitation amount is 106 mm (4.2 in), spread over the course of 9 days.

August Precipitation Trends in Arlington

The chart displays monthly precipitation patterns in Arlington, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Arlington, August typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec20205975947410210698752532
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Arlington

In Arlington in August humidity is 83%. With an average temperature of 21°C (71°F), this humidity feels like walking through a warm mist, making travel both refreshing and slightly uncomfortable as the air clings to your skin and you find yourself needing to take frequent breaks to hydrate.

August Average Humidity in Arlington

This chart illustrates the average monthly humidity levels in Arlington, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Arlington is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Arlington

In Arlington in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Arlington.

Maximum UV Index Levels in Arlington for August

The chart shows the monthly maximum UV Index (UVI) for Arlington in August, 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 August, the maximum UV index in Arlington typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
Data source: Arlington August 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 August Weather in Arlington Compares to Other Months

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

This table compares monthly weather conditions in Arlington, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)20 mm (0.8 inches)85%moderate
February Weather-9°C (17°F)20 mm (0.8 inches)89%moderate
March Weather0°C (33°F)59 mm (2.3 inches)81%moderate
April Weather6°C (42°F)75 mm (2.9 inches)82%very high
May Weather14°C (57°F)93 mm (3.7 inches)76%very high
June Weather22°C (71°F)74 mm (2.9 inches)81%very high
July Weather23°C (74°F)102 mm (4.0 inches)82%very high
August Weather21°C (71°F)106 mm (4.2 inches)83%very high
September Weather18°C (64°F)98 mm (3.8 inches)82%very high
October Weather8°C (47°F)75 mm (2.9 inches)82%moderate
November Weather1°C (34°F)25 mm (1.0 inches)87%moderate
December Weather-4°C (25°F)32 mm (1.3 inches)84%low

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