April Weather in Catalina, United States

Last updated: June 24, 2025

In April, the average temperature in Catalina, United States is a comfortable 21°C (69°F). However, temperatures can vary significantly, with a minimum of 5°C (42°F) and a maximum reaching up to 35°C (96°F). On average, expect some light rain, with a precipitation amount of only 3 mm (0.1 in) falling over the course of 1 day. The average humidity during this month is a pleasant 55%, making it an enjoyable time to visit!

April Temperature in Catalina

In April in Catalina, the average temperature is 21°C (69°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 5°C (42°F). This variation makes it an ideal time for travelers to pack layers and enjoy the pleasant weather.

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

The chart illustrates April 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, April typically has an average temperature of 21°C (69°F), with highs reaching up to 35°C (96°F) and lows dropping to around 5°C (42°F).

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

April Precipitation in Catalina

In Catalina in April, the precipitation amount is 3 mm (0.1 in) over the course of 1 day.

April Precipitation Trends in Catalina

The chart displays monthly precipitation patterns in Catalina, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Catalina, April typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 1 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Catalina

In Catalina in April, humidity is 55%. With an average temperature of 21°C (69°F), this humidity feels like a refreshing embrace, making it quite pleasant for traveling as long as you stay hydrated and take frequent breaks in the shade.

April Average Humidity in Catalina

This chart illustrates the average monthly humidity levels in Catalina, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Catalina is approximately 55%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Catalina

In Catalina in April, 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 Catalina.

Maximum UV Index Levels in Catalina for April

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

Data source: Catalina April 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 April 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 April’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 April’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