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May Weather in Catalina, Canada

Last updated: June 18, 2025

In May, the average temperature in Catalina, Canada hovers around 4°C (39°F). Expect chilly days with a minimum temperature dipping to -3°C (27°F), while the highs may reach up to 16°C (60°F). Be prepared for some precipitation, as you'll likely experience about 87 mm (3.4 in) over 12 days, all accompanied by an average humidity of 89%.

May Temperature in Catalina

In May in Catalina, the average temperature is 4°C (39°F). The maximum can reach 16°C (60°F), while the minimum can drop to as low as -3°C (27°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates May 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, May typically has an average temperature of 4°C (39°F), with highs reaching up to 16°C (60°F) and lows dropping to around -3°C (27°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.

May Precipitation in Catalina

In Catalina in May, the precipitation amount is 87 mm (3.4 in) over the course of 12 days.

May Precipitation Trends in Catalina

The chart displays monthly precipitation patterns in Catalina, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Catalina, May typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec96991031328786898311498114122
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Catalina

In Catalina in May humidity is 89%. With an average temperature of 4°C (39°F), this humidity feels like an uninviting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers of clothing to fend off the dampness.

May Average Humidity in Catalina

This chart illustrates the average monthly humidity levels in Catalina, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Catalina is approximately 89%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Catalina

In Catalina in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Catalina in May, 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 May, the maximum UV index in Catalina typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356810876421
Data source: Catalina May 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 May 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 May’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 May’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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