July Weather in Hayward, United States

Last updated: June 24, 2025

In Hayward, United States, the average temperature in July hovers around 20°C (68°F). Expect cool evenings with minimums dropping to 11°C (52°F), while daytime highs can soar to a sizzling 35°C (95°F). With an average humidity of 58% and no precipitation—0 mm (0.0 in)—during the month, enjoy clear skies and sun-filled days perfect for outdoor adventures!

July Temperature in Hayward

In July in Hayward, the average temperature is 20°C (68°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 11°C (52°F). This climate makes it a pleasant time for travelers to explore the diverse attractions that Hayward has to offer.

July Weather in Hayward: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Hayward, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayward, July typically has an average temperature of 20°C (68°F), with highs reaching up to 35°C (95°F) and lows dropping to around 11°C (52°F).

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

July Precipitation in Hayward

In Hayward in July, the precipitation amount is 0 mm (0.0 in) during 0 days.

July Precipitation Trends in Hayward

The chart displays monthly precipitation patterns in Hayward, 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 Hayward, July typically receives around 0 mm (0.0 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 Hayward

In Hayward in July humidity is 58%. With an average temperature of 20°C (68°F), this humidity feels like a refreshing embrace, creating a comfortable atmosphere for exploring the local sights and enjoying leisurely walks outdoors.

July Average Humidity in Hayward

This chart illustrates the average monthly humidity levels in Hayward, 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 Hayward is approximately 58%, 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 Hayward

In Hayward 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 Hayward.

Maximum UV Index Levels in Hayward for July

The chart shows the monthly maximum UV Index (UVI) for Hayward 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 Hayward typically reaches 11, which falls under the extreme exposure category.

Data source: Hayward 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 Hayward Compares to Other Months

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

This table compares monthly weather conditions in Hayward, 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 (50°F)	94 mm (3.7 inches)	82%	moderate
February Weather	11°C (52°F)	89 mm (3.5 inches)	84%	moderate
March Weather	12°C (54°F)	77 mm (3.0 inches)	82%	very high
April Weather	14°C (58°F)	30 mm (1.2 inches)	78%	very high
May Weather	16°C (61°F)	17 mm (0.7 inches)	71%	very high
June Weather	19°C (66°F)	2 mm (0.1 inches)	64%	extreme
July Weather	20°C (68°F)	0 mm (0.0 inches)	58%	extreme
August Weather	20°C (69°F)	0 mm (0.0 inches)	54%	very high
September Weather	20°C (68°F)	2 mm (0.1 inches)	55%	very high
October Weather	17°C (63°F)	22 mm (0.9 inches)	62%	high
November Weather	13°C (55°F)	38 mm (1.5 inches)	78%	moderate
December Weather	10°C (50°F)	76 mm (3.0 inches)	80%	moderate