August Weather in Duvall, United States

Last updated: June 24, 2025

In August, the average temperature in Duvall, United States is a pleasant 18°C (65°F). Visitors can expect a range in temperature, with a minimum of 7°C (44°F) and a maximum that can reach up to 34°C (93°F). Precipitation is light, averaging 27 mm (1.0 in) spread across 4 days, while the average humidity hovers around 63%, adding to the region's inviting climate.

August Temperature in Duvall

In August in Duvall, the average temperature is 18°C (65°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 7°C (44°F). It's a great time to explore Duvall, as the weather is generally pleasant with warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Duvall, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Duvall, August typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (93°F) and lows dropping to around 7°C (44°F).

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

August Precipitation in Duvall

In Duvall in August, the precipitation amount is 27 mm (1.0 in) over the course of 4 days.

August Precipitation Trends in Duvall

The chart displays monthly precipitation patterns in Duvall, 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 Duvall, August typically receives around 27 mm (1.0 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Duvall

In Duvall in August, humidity is 63%. With an average temperature of 18°C (65°F), this humidity feels like a comfortable embrace, making for an enjoyable travel experience that allows for leisurely exploration without feeling overly sticky or oppressive.

August Average Humidity in Duvall

This chart illustrates the average monthly humidity levels in Duvall, 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 Duvall is approximately 63%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Duvall

In Duvall in August, 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 Duvall.

Maximum UV Index Levels in Duvall for August

The chart shows the monthly maximum UV Index (UVI) for Duvall 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 Duvall typically reaches 8, which falls under the very high exposure category.

Data source: Duvall 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 Duvall Compares to Other Months

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

This table compares monthly weather conditions in Duvall, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	215 mm (8.5 inches)	86%	low
February Weather	4°C (39°F)	242 mm (9.5 inches)	86%	moderate
March Weather	7°C (44°F)	167 mm (6.6 inches)	87%	moderate
April Weather	9°C (49°F)	154 mm (6.1 inches)	84%	high
May Weather	13°C (56°F)	94 mm (3.7 inches)	81%	very high
June Weather	16°C (60°F)	88 mm (3.5 inches)	82%	very high
July Weather	18°C (65°F)	33 mm (1.3 inches)	79%	very high
August Weather	18°C (65°F)	27 mm (1.0 inches)	63%	very high
September Weather	15°C (60°F)	124 mm (4.9 inches)	62%	high
October Weather	10°C (50°F)	220 mm (8.7 inches)	83%	moderate
November Weather	7°C (45°F)	238 mm (9.4 inches)	89%	low
December Weather	4°C (40°F)	248 mm (9.8 inches)	88%	low