August Weather in Alameda, United States

Last updated: June 24, 2025

In August, the average temperature in Alameda, United States is a pleasant 18°C (65°F). Expect a comfortable range where minimums can dip to 11°C (52°F), while maximums can soar to 37°C (99°F). With 0 mm (0.0 in) of precipitation and average humidity at 54%, you can anticipate a mostly dry and enjoyable atmosphere.

August Temperature in Alameda

In August in Alameda, the average temperature is 18°C (65°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 11°C (52°F), making it a comfortable destination for travelers seeking pleasant weather.

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

The chart illustrates August temperature patterns in Alameda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alameda, August typically has an average temperature of 18°C (65°F), with highs reaching up to 37°C (99°F) and lows dropping to around 11°C (52°F).

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

August Precipitation in Alameda

In Alameda in August, the precipitation amount is 0 mm (0.0 in) during 0 days.

August Precipitation Trends in Alameda

The chart displays monthly precipitation patterns in Alameda, 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 Alameda, August typically receives around 0 mm (0.0 inches) of precipitation spread over approximately 0 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 Alameda

In Alameda in August, humidity is 54%. With an average temperature of 18°C (65°F), this humidity feels like a light, refreshing breeze, making it comfortable for traveling and exploring the area without the discomfort of excessive stickiness.

August Average Humidity in Alameda

This chart illustrates the average monthly humidity levels in Alameda, 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 Alameda is approximately 54%, 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 Alameda

In Alameda in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Alameda.

Maximum UV Index Levels in Alameda for August

The chart shows the monthly maximum UV Index (UVI) for Alameda 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 Alameda typically reaches 10, which falls under the very high exposure category.

Data source: Alameda 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 Alameda Compares to Other Months

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

This table compares monthly weather conditions in Alameda, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	94 mm (3.7 inches)	82%	moderate
February Weather	11°C (53°F)	91 mm (3.6 inches)	84%	moderate
March Weather	12°C (54°F)	73 mm (2.9 inches)	82%	very high
April Weather	14°C (58°F)	29 mm (1.2 inches)	78%	very high
May Weather	15°C (60°F)	18 mm (0.7 inches)	71%	very high
June Weather	18°C (64°F)	2 mm (0.1 inches)	64%	extreme
July Weather	18°C (64°F)	0 mm (0.0 inches)	58%	extreme
August Weather	18°C (65°F)	0 mm (0.0 inches)	54%	very high
September Weather	19°C (66°F)	1 mm (0.0 inches)	55%	very high
October Weather	17°C (63°F)	24 mm (1.0 inches)	62%	high
November Weather	13°C (56°F)	42 mm (1.7 inches)	78%	moderate
December Weather	10°C (51°F)	80 mm (3.2 inches)	80%	moderate