July Weather in Catalina, United States

Last updated: June 24, 2025

In July, the average temperature in Catalina, United States reaches a warm 30°C (86°F). Expect a range from a comfortable 19°C (67°F) to a scorching 42°C (108°F). Be prepared for 96 mm (3.8 in) of precipitation spread over 13 days, and enjoy the relatively low average humidity of 34%.

July Temperature in Catalina

In July in Catalina, the average temperature is 30°C (86°F). The maximum can reach 42°C (108°F), and the minimum can be as low as 19°C (67°F). Be prepared for hot weather, so pack light clothing and stay hydrated during your travels.

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

The chart illustrates July temperature patterns in Catalina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Catalina, 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 19°C (67°F).

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

July Precipitation in Catalina

In Catalina in July, the precipitation amount is 96 mm (3.8 in) spread over 13 days, indicating a relatively rainy period.

July Precipitation Trends in Catalina

The chart displays monthly precipitation patterns in Catalina, 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 Catalina, July typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 13 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 Catalina

In Catalina in July humidity is 34%. With an average temperature of 30°C (86°F), this humidity feels like a warm embrace, making travel quite pleasant but with a hint of stickiness that can be felt on the skin.

July Average Humidity in Catalina

This chart illustrates the average monthly humidity levels in Catalina, 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 Catalina is approximately 34%, 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 Catalina

In Catalina 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 Catalina.

Maximum UV Index Levels in Catalina for July

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

Data source: Catalina 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 Catalina Compares to Other Months

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

This table compares monthly weather conditions in Catalina, 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)	34 mm (1.3 inches)	76%	moderate
February Weather	12°C (53°F)	42 mm (1.7 inches)	79%	high
March Weather	15°C (60°F)	22 mm (0.9 inches)	67%	very high
April Weather	21°C (69°F)	3 mm (0.1 inches)	55%	extreme
May Weather	24°C (76°F)	5 mm (0.2 inches)	40%	extreme
June Weather	30°C (86°F)	9 mm (0.3 inches)	33%	extreme
July Weather	30°C (86°F)	96 mm (3.8 inches)	34%	extreme
August Weather	29°C (85°F)	63 mm (2.5 inches)	48%	extreme
September Weather	27°C (81°F)	34 mm (1.3 inches)	64%	extreme
October Weather	22°C (71°F)	12 mm (0.5 inches)	67%	very high
November Weather	17°C (62°F)	21 mm (0.8 inches)	77%	high
December Weather	11°C (52°F)	31 mm (1.2 inches)	82%	moderate