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May Weather in Newmarket, Canada

Last updated: June 18, 2025

In Newmarket, Canada, the average temperature in May hovers around 13°C (56°F). This month can bring a mix of surprises, with minimums plunging to -3°C (27°F) and extremes reaching up to 32°C (90°F). Don't forget your umbrella, as 99 mm (3.9 in) of precipitation is expected over 13 days, paired with a comfortable average humidity of 82%. Prepare for a month of varied weather and plan accordingly!

May Temperature in Newmarket

In May in Newmarket, the average temperature is 13°C (56°F). The maximum can reach 32°C (90°F), while the minimum can dip as low as -3°C (27°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort during their visit.

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

The chart illustrates May temperature patterns in Newmarket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newmarket, May typically has an average temperature of 13°C (56°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec222331425666716962503628
Data source: Temperature data for Newmarket 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 Newmarket

In Newmarket in May, the precipitation amount is 99 mm (3.9 in) over the course of 13 days.

May Precipitation Trends in Newmarket

The chart displays monthly precipitation patterns in Newmarket, 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 Newmarket, May typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec60616010399949897641007467
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Newmarket

In Newmarket in May, humidity is 82%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel much cooler than it is and creating a heavy atmosphere that can be exhausting for travelers.

May Average Humidity in Newmarket

This chart illustrates the average monthly humidity levels in Newmarket, 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 Newmarket is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Newmarket

In Newmarket in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Newmarket.

Maximum UV Index Levels in Newmarket for May

The chart shows the monthly maximum UV Index (UVI) for Newmarket 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 Newmarket typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Newmarket 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 Newmarket Compares to Other Months

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

This table compares monthly weather conditions in Newmarket, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)60 mm (2.4 inches)91%low
February Weather-5°C (23°F)61 mm (2.4 inches)91%moderate
March Weather0°C (32°F)60 mm (2.4 inches)88%moderate
April Weather6°C (42°F)103 mm (4.1 inches)88%very high
May Weather13°C (56°F)99 mm (3.9 inches)82%very high
June Weather19°C (66°F)94 mm (3.7 inches)79%very high
July Weather22°C (72°F)98 mm (3.9 inches)77%very high
August Weather21°C (69°F)97 mm (3.8 inches)72%very high
September Weather16°C (62°F)64 mm (2.5 inches)76%high
October Weather10°C (50°F)100 mm (3.9 inches)83%moderate
November Weather2°C (36°F)74 mm (2.9 inches)88%moderate
December Weather-2°C (28°F)67 mm (2.6 inches)87%low

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