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May Weather in Pasadena, Canada

Last updated: June 18, 2025

The average temperature in Pasadena, Canada during May hovers around 6°C (43°F), with a minimum dipping to -4°C (24°F) and a maximum reaching up to 20°C (69°F). Expect 94 mm (3.7 in) of precipitation spread over 14 days, contributing to an average humidity of 87%. Stay prepared for a mix of cool and wet conditions!

May Temperature in Pasadena

In May in Pasadena, the average temperature is 6°C (43°F), with maximums reaching up to 20°C (69°F) and minimums dropping as low as -4°C (24°F). Be prepared for a range of weather conditions while traveling, so pack accordingly!

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

The chart illustrates May temperature patterns in Pasadena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pasadena, May typically has an average temperature of 6°C (43°F), with highs reaching up to 20°C (69°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec221925344252596355453729
Data source: Temperature data for Pasadena 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 Pasadena

In Pasadena in May, the precipitation amount is 94 mm (3.7 in) recorded over the course of 14 days.

May Precipitation Trends in Pasadena

The chart displays monthly precipitation patterns in Pasadena, 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 Pasadena, May typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9011110410094947089107114140139
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Pasadena

In Pasadena in May, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.

May Average Humidity in Pasadena

This chart illustrates the average monthly humidity levels in Pasadena, 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 Pasadena is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%90%89%88%87%85%90%90%87%84%83%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Pasadena

In Pasadena 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 Pasadena.

Maximum UV Index Levels in Pasadena for May

The chart shows the monthly maximum UV Index (UVI) for Pasadena 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 Pasadena typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789886421
Data source: Pasadena 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 Pasadena Compares to Other Months

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

This table compares monthly weather conditions in Pasadena, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)90 mm (3.5 inches)88%low
February Weather-7°C (20°F)111 mm (4.4 inches)90%moderate
March Weather-4°C (25°F)104 mm (4.1 inches)89%moderate
April Weather1°C (34°F)100 mm (4.0 inches)88%high
May Weather6°C (43°F)94 mm (3.7 inches)87%very high
June Weather11°C (52°F)94 mm (3.7 inches)85%very high
July Weather15°C (60°F)70 mm (2.8 inches)90%very high
August Weather17°C (63°F)89 mm (3.5 inches)90%very high
September Weather13°C (55°F)106 mm (4.2 inches)87%high
October Weather7°C (46°F)114 mm (4.5 inches)84%moderate
November Weather3°C (37°F)140 mm (5.5 inches)83%low
December Weather-2°C (29°F)139 mm (5.5 inches)85%low

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