July Weather in Tamalpais Valley, United States

Last updated: June 24, 2025

In July, the average temperature in Tamalpais Valley, United States is a comfortable 17°C (63°F), with a minimum of 11°C (52°F) and a peak reaching 30°C (87°F). With only 2 mm (0.1 in) of precipitation over 0 days, you're unlikely to encounter rain. However, expect a notable average humidity of 87%, adding a touch of moisture to the warm air.

July Temperature in Tamalpais Valley

In July in Tamalpais Valley, the average temperature is 17°C (63°F). The maximum can reach 30°C (87°F) and the minimum can be as low as 11°C (52°F). This weather is perfect for exploring the sights while enjoying some outdoor activities.

July Weather in Tamalpais Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Tamalpais Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tamalpais Valley, July typically has an average temperature of 17°C (63°F), with highs reaching up to 30°C (87°F) and lows dropping to around 11°C (52°F).

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

July Precipitation in Tamalpais Valley

In Tamalpais Valley in July, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

July Precipitation Trends in Tamalpais Valley

The chart displays monthly precipitation patterns in Tamalpais Valley, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Tamalpais Valley, July typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Tamalpais Valley

In Tamalpais Valley in July, humidity is 87%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky and uncomfortable, especially during outdoor activities.

July Average Humidity in Tamalpais Valley

This chart illustrates the average monthly humidity levels in Tamalpais Valley, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Tamalpais Valley is approximately 87%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Tamalpais Valley

In Tamalpais Valley in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Tamalpais Valley.

Maximum UV Index Levels in Tamalpais Valley for July

The chart shows the monthly maximum UV Index (UVI) for Tamalpais Valley in July, 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 July, the maximum UV index in Tamalpais Valley typically reaches 11, which falls under the extreme exposure category.

Data source: Tamalpais Valley July 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 July Weather in Tamalpais Valley Compares to Other Months

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

This table compares monthly weather conditions in Tamalpais Valley, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	111 mm (4.4 inches)	85%	moderate
February Weather	11°C (52°F)	116 mm (4.6 inches)	82%	moderate
March Weather	12°C (54°F)	80 mm (3.1 inches)	82%	very high
April Weather	14°C (57°F)	35 mm (1.4 inches)	79%	very high
May Weather	15°C (60°F)	20 mm (0.8 inches)	83%	very high
June Weather	17°C (63°F)	2 mm (0.1 inches)	84%	extreme
July Weather	17°C (63°F)	2 mm (0.1 inches)	87%	extreme
August Weather	18°C (64°F)	1 mm (0.1 inches)	87%	very high
September Weather	18°C (65°F)	2 mm (0.1 inches)	86%	very high
October Weather	16°C (62°F)	30 mm (1.2 inches)	80%	high
November Weather	13°C (55°F)	48 mm (1.9 inches)	79%	moderate
December Weather	10°C (51°F)	98 mm (3.9 inches)	79%	moderate