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October Weather in Catalina, United States

Last updated: June 24, 2025

In October, the average temperature in Catalina, United States is a pleasant 22°C (71°F). However, be prepared for temperature fluctuations, as it can dip to a cool 3°C (37°F) and soar up to a sweltering 37°C (98°F). Rainfall is modest, with 12 mm (0.5 in) expected over about 3 days, contributing to an average humidity level of 67%.

October Temperature in Catalina

In October in Catalina, the average temperature is 22°C (71°F). Maximum temperatures can reach 37°C (98°F), while minimums can drop as low as 3°C (37°F). This makes it an ideal time to explore Catalina, offering a pleasant climate for outdoor activities.

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

The chart illustrates October 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, October typically has an average temperature of 22°C (71°F), with highs reaching up to 37°C (98°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec515360697686868581716252
Data source: Temperature data for Catalina generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Catalina

In Catalina in October, the precipitation amount is 12 mm (0.5 in) during a span of 3 days.

October Precipitation Trends in Catalina

The chart displays monthly precipitation patterns in Catalina, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Catalina, October typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec344222359966334122131
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Catalina

In Catalina in October, humidity is 67%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet slightly uncomfortable, as the air hangs thick, reminding travelers to stay hydrated and seek shade during the midday sun.

October Average Humidity in Catalina

This chart illustrates the average monthly humidity levels in Catalina, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Catalina is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%79%67%55%40%33%34%48%64%67%77%82%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Catalina

In Catalina in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Catalina.

Maximum UV Index Levels in Catalina for October

The chart shows the monthly maximum UV Index (UVI) for Catalina in October, 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 October, the maximum UV index in Catalina typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121111864
Data source: Catalina October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)34 mm (1.3 inches)76%moderate
February Weather12°C (53°F)42 mm (1.7 inches)79%high
March Weather15°C (60°F)22 mm (0.9 inches)67%very high
April Weather21°C (69°F)3 mm (0.1 inches)55%extreme
May Weather24°C (76°F)5 mm (0.2 inches)40%extreme
June Weather30°C (86°F)9 mm (0.3 inches)33%extreme
July Weather30°C (86°F)96 mm (3.8 inches)34%extreme
August Weather29°C (85°F)63 mm (2.5 inches)48%extreme
September Weather27°C (81°F)34 mm (1.3 inches)64%extreme
October Weather22°C (71°F)12 mm (0.5 inches)67%very high
November Weather17°C (62°F)21 mm (0.8 inches)77%high
December Weather11°C (52°F)31 mm (1.2 inches)82%moderate

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