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December Weather in Catalina, Canada

Last updated: June 18, 2025

In Catalina, Canada, the average temperature in December hovers around 0°C (33°F). Expect chilly conditions, with minimum temperatures dipping to -10°C (14°F) and a maximum reaching 12°C (53°F). The region experiences 122 mm (4.8 in) of precipitation over 16 days, coupled with an average humidity of 85%. Prepare accordingly for a cool, damp month!

December Temperature in Catalina

In December in Catalina, the average temperature is 0°C (33°F). Maximums can reach 12°C (53°F), while minimums can drop to as low as -10°C (14°F). Travelers should be prepared for chilly temperatures and pack accordingly!

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

The chart illustrates December 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, December typically has an average temperature of 0°C (33°F), with highs reaching up to 12°C (53°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec282529343947566155474032
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.

December Precipitation in Catalina

In Catalina in December, the precipitation amount is 122 mm (4.8 in) spread over 16 days.

December Precipitation Trends in Catalina

The chart displays monthly precipitation patterns in Catalina, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Catalina, December typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec96991031328786898311498114122
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Catalina

In Catalina in December, humidity is 85%. With an average temperature of 0°C (33°F), this humidity feels like a heavy blanket, making the air feel colder and more biting, while creating an uncomfortable clamminess that can dampen the thrill of traveling.

December Average Humidity in Catalina

This chart illustrates the average monthly humidity levels in Catalina, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Catalina is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%88%90%89%86%89%90%88%87%85%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Catalina

In Catalina in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Catalina.

Maximum UV Index Levels in Catalina for December

The chart shows the monthly maximum UV Index (UVI) for Catalina in December, 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 December, the maximum UV index in Catalina typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356810876421
Data source: Catalina December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)96 mm (3.8 inches)85%low
February Weather-4°C (25°F)99 mm (3.9 inches)87%moderate
March Weather-2°C (29°F)103 mm (4.0 inches)88%moderate
April Weather1°C (35°F)132 mm (5.2 inches)90%high
May Weather4°C (39°F)87 mm (3.4 inches)89%very high
June Weather9°C (48°F)85 mm (3.4 inches)86%very high
July Weather13°C (56°F)89 mm (3.5 inches)89%very high
August Weather16°C (61°F)82 mm (3.2 inches)90%high
September Weather13°C (56°F)114 mm (4.5 inches)88%high
October Weather8°C (47°F)98 mm (3.9 inches)87%moderate
November Weather4°C (40°F)114 mm (4.5 inches)85%low
December Weather0°C (33°F)122 mm (4.8 inches)85%low

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