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May Weather in New Westminster, Canada

Last updated: June 18, 2025

In New Westminster, Canada, the average temperature in May hovers around 12°C (55°F). You can expect a minimum of 3°C (38°F) and a maximum of 27°C (80°F) during this time. With an average precipitation of 99 mm (3.9 in) spread over 11 days, the month is likely to feel quite humid, with an average humidity level of 81%.

May Temperature in New Westminster

In May in New Westminster, the average temperature is 12°C (55°F). Maximum temperatures can reach 27°C (80°F), while minimums can drop as low as 3°C (38°F). Be prepared for a mix of mild and warmer days, making it a great time to explore the area's attractions.

May Weather in New Westminster: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in New Westminster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Westminster, May typically has an average temperature of 12°C (55°F), with highs reaching up to 27°C (80°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec383642475459646559494338
Data source: Temperature data for New Westminster 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 New Westminster

In New Westminster, in May, the precipitation amount is 99 mm (3.9 in) over the course of 11 days.

May Precipitation Trends in New Westminster

The chart displays monthly precipitation patterns in New Westminster, 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 New Westminster, May typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec32019321417499964146205279411324
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in New Westminster

In New Westminster in May humidity is 81%. With an average temperature of 12°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel heavier and encouraging frequent breaks to hydrate and cool off while traveling.

May Average Humidity in New Westminster

This chart illustrates the average monthly humidity levels in New Westminster, 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 New Westminster is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in New Westminster

In New Westminster 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 New Westminster.

Maximum UV Index Levels in New Westminster for May

The chart shows the monthly maximum UV Index (UVI) for New Westminster 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 New Westminster typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234688986421
Data source: New Westminster 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 New Westminster Compares to Other Months

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

This table compares monthly weather conditions in New Westminster, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)320 mm (12.6 inches)86%low
February Weather2°C (37°F)193 mm (7.6 inches)85%moderate
March Weather5°C (42°F)214 mm (8.4 inches)86%moderate
April Weather8°C (47°F)174 mm (6.8 inches)86%high
May Weather12°C (55°F)99 mm (3.9 inches)81%very high
June Weather15°C (60°F)96 mm (3.8 inches)83%very high
July Weather18°C (64°F)41 mm (1.6 inches)84%very high
August Weather18°C (65°F)46 mm (1.8 inches)77%very high
September Weather15°C (59°F)205 mm (8.1 inches)76%high
October Weather9°C (49°F)279 mm (11.0 inches)88%moderate
November Weather6°C (44°F)411 mm (16.2 inches)87%low
December Weather3°C (38°F)324 mm (12.8 inches)87%low

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