July Weather in Castroville, United States

Last updated: June 24, 2025

In Castroville, United States, the average temperature in July is a warm 30°C (86°F), making it a great time to enjoy the outdoors. Temperatures can range from a comfortable 18°C (65°F) to a sizzling 42°C (108°F). Expect some rainfall, with an average precipitation of 52 mm (2.0 in) over 6 days. The humidity sits at a moderate 66%, adding to the tropical feel of the month.

July Temperature in Castroville

In July in Castroville, the average temperature is 30°C (86°F), with maximums that can reach 42°C (108°F) and minimums dipping as low as 18°C (65°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates July temperature patterns in Castroville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castroville, July typically has an average temperature of 30°C (86°F), with highs reaching up to 42°C (108°F) and lows dropping to around 18°C (65°F).

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

July Precipitation in Castroville

In Castroville, in July, the precipitation amount is 52 mm (2.0 in) over the course of 6 days.

July Precipitation Trends in Castroville

The chart displays monthly precipitation patterns in Castroville, 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 Castroville, July typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Castroville

In Castroville in July humidity is 66%. With an average temperature of 30°C (86°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making any outdoor activity more demanding and necessitating regular breaks to hydrate and cool off.

July Average Humidity in Castroville

This chart illustrates the average monthly humidity levels in Castroville, 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 Castroville is approximately 66%, 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 Castroville

In Castroville in July, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Castroville.

Maximum UV Index Levels in Castroville for July

The chart shows the monthly maximum UV Index (UVI) for Castroville 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 Castroville typically reaches 12, which falls under the extreme exposure category.

Data source: Castroville 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 Castroville Compares to Other Months

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

This table compares monthly weather conditions in Castroville, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	34 mm (1.3 inches)	79%	moderate
February Weather	13°C (57°F)	47 mm (1.8 inches)	79%	very high
March Weather	19°C (66°F)	50 mm (2.0 inches)	74%	very high
April Weather	22°C (72°F)	61 mm (2.4 inches)	76%	extreme
May Weather	26°C (79°F)	109 mm (4.3 inches)	81%	extreme
June Weather	29°C (84°F)	58 mm (2.3 inches)	76%	extreme
July Weather	30°C (86°F)	52 mm (2.0 inches)	66%	extreme
August Weather	31°C (87°F)	40 mm (1.6 inches)	58%	extreme
September Weather	28°C (82°F)	106 mm (4.2 inches)	65%	extreme
October Weather	23°C (73°F)	69 mm (2.7 inches)	74%	very high
November Weather	17°C (62°F)	40 mm (1.6 inches)	81%	high
December Weather	14°C (57°F)	46 mm (1.8 inches)	86%	moderate