July Weather in Palo Alto, United States

Last updated: June 24, 2025

In Palo Alto, United States, the average temperature in July is a pleasant 24°C (75°F). However, travelers should be prepared for fluctuations, with temperatures dipping as low as 13°C (56°F) and soaring up to 34°C (94°F). This month also brings an average of 163 mm (6.4 in) of precipitation, spread over about 14 days, and a humidity level of around 65%.

July Temperature in Palo Alto

In July in Palo Alto, the average temperature is 24°C (75°F). Maximums can reach 34°C (94°F), and minimums can be as low as 13°C (56°F). This makes it an ideal time for travelers to enjoy a pleasant mix of warm and cool weather while exploring the area.

July Weather in Palo Alto: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Palo Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palo Alto, July typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (56°F).

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

July Precipitation in Palo Alto

In Palo Alto in July, the total precipitation amount is 163 mm (6.4 in) over the course of 14 days.

July Precipitation Trends in Palo Alto

The chart displays monthly precipitation patterns in Palo Alto, 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 Palo Alto, July typically receives around 163 mm (6.4 inches) of precipitation spread over approximately 14 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 Palo Alto

In Palo Alto in July humidity is 65%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a bit sticky but still enjoyable for exploring sights and sounds.

July Average Humidity in Palo Alto

This chart illustrates the average monthly humidity levels in Palo Alto, 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 Palo Alto is approximately 65%, 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 Palo Alto

In Palo Alto in July, 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 Palo Alto.

Maximum UV Index Levels in Palo Alto for July

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

Data source: Palo Alto 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 Palo Alto Compares to Other Months

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

This table compares monthly weather conditions in Palo Alto, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	74 mm (2.9 inches)	87%	moderate
February Weather	1°C (33°F)	106 mm (4.2 inches)	85%	moderate
March Weather	4°C (39°F)	96 mm (3.8 inches)	85%	high
April Weather	10°C (50°F)	111 mm (4.4 inches)	83%	very high
May Weather	16°C (61°F)	133 mm (5.2 inches)	75%	very high
June Weather	21°C (69°F)	118 mm (4.6 inches)	73%	very high
July Weather	24°C (75°F)	163 mm (6.4 inches)	65%	very high
August Weather	22°C (73°F)	155 mm (6.1 inches)	62%	very high
September Weather	19°C (67°F)	117 mm (4.6 inches)	66%	very high
October Weather	13°C (57°F)	117 mm (4.6 inches)	79%	high
November Weather	5°C (42°F)	99 mm (3.9 inches)	87%	moderate
December Weather	1°C (35°F)	93 mm (3.7 inches)	85%	low