August Weather in Roseville, United States

Last updated: June 24, 2025

In August, the average temperature in Roseville, United States is a pleasant 22°C (71°F). Temperatures can range from a cool 11°C (52°F) to a warm 32°C (91°F). Expect about 135 mm (5.3 in) of precipitation over 12 days, with an average humidity of 81% making it feel quite tropical.

August Temperature in Roseville

In August in Roseville, the average temperature is 22°C (71°F). Maximums can reach 32°C (91°F) and minimums can be as low as 11°C (52°F). This pleasant climate makes Roseville an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates August temperature patterns in Roseville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roseville, August typically has an average temperature of 22°C (71°F), with highs reaching up to 32°C (91°F) and lows dropping to around 11°C (52°F).

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

August Precipitation in Roseville

In Roseville in August, the precipitation amount is 135 mm (5.3 in), occurring over the course of 12 days.

August Precipitation Trends in Roseville

The chart displays monthly precipitation patterns in Roseville, 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 Roseville, August typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Roseville

In Roseville in August humidity is 81%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities somewhat challenging but offering a tropical ambiance perfect for exploring shaded areas and enjoying refreshing drinks.

August Average Humidity in Roseville

This chart illustrates the average monthly humidity levels in Roseville, 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 Roseville is approximately 81%, 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 Roseville

In Roseville 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 Roseville.

Maximum UV Index Levels in Roseville for August

The chart shows the monthly maximum UV Index (UVI) for Roseville 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 Roseville typically reaches 9, which falls under the very high exposure category.

Data source: Roseville 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 Roseville Compares to Other Months

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

This table compares monthly weather conditions in Roseville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	27 mm (1.0 inches)	87%	low
February Weather	-8°C (17°F)	33 mm (1.3 inches)	90%	moderate
March Weather	0°C (33°F)	56 mm (2.2 inches)	85%	moderate
April Weather	6°C (43°F)	87 mm (3.4 inches)	84%	high
May Weather	15°C (59°F)	126 mm (5.0 inches)	78%	very high
June Weather	22°C (72°F)	86 mm (3.4 inches)	80%	very high
July Weather	24°C (75°F)	104 mm (4.1 inches)	81%	very high
August Weather	22°C (71°F)	135 mm (5.3 inches)	81%	very high
September Weather	18°C (64°F)	115 mm (4.5 inches)	81%	high
October Weather	9°C (49°F)	98 mm (3.9 inches)	84%	moderate
November Weather	1°C (33°F)	35 mm (1.4 inches)	88%	moderate
December Weather	-5°C (23°F)	50 mm (2.0 inches)	84%	low