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April Weather in Markham, Canada

Last updated: June 18, 2025

In April, the average temperature in Markham, Canada hovers around 5°C (41°F), with a range that dips as low as -4°C (26°F) and peaks at 15°C (60°F). Expect about 118 mm (4.6 in) of precipitation spread over 13 days, contributing to the region's high average humidity of 88%.

April Temperature in Markham

In April in Markham, the average temperature is 5°C (41°F). Maximums can reach 15°C (60°F), and minimums can drop to as low as -4°C (26°F). Travelers should prepare for a range of temperatures and dress in layers to stay comfortable during their visit.

April Weather in Markham: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Markham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Markham, April typically has an average temperature of 5°C (41°F), with highs reaching up to 15°C (60°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec272733415061707065544032
Data source: Temperature data for Markham 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.

April Precipitation in Markham

In Markham in April, the precipitation amount is 118 mm (4.6 in) over a span of 13 days.

April Precipitation Trends in Markham

The chart displays monthly precipitation patterns in Markham, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Markham, April typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec808375118103807376691159691
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Markham

In Markham in April humidity is 88%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making it essential to bundle up for your travels, as every breath feels heavy in the air and the landscape appears cloaked in a misty shroud.

April Average Humidity in Markham

This chart illustrates the average monthly humidity levels in Markham, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Markham is approximately 88%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Markham

In Markham in April, 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 Markham.

Maximum UV Index Levels in Markham for April

The chart shows the monthly maximum UV Index (UVI) for Markham in April, 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 April, the maximum UV index in Markham typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Markham April 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 April Weather in Markham Compares to Other Months

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

This table compares monthly weather conditions in Markham, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)80 mm (3.2 inches)91%low
February Weather-3°C (28°F)83 mm (3.3 inches)91%moderate
March Weather0°C (33°F)75 mm (2.9 inches)88%moderate
April Weather5°C (41°F)118 mm (4.6 inches)88%very high
May Weather10°C (50°F)103 mm (4.1 inches)82%very high
June Weather16°C (62°F)80 mm (3.1 inches)79%very high
July Weather21°C (71°F)73 mm (2.9 inches)77%very high
August Weather21°C (71°F)76 mm (3.0 inches)72%very high
September Weather18°C (65°F)69 mm (2.7 inches)76%high
October Weather12°C (54°F)115 mm (4.5 inches)83%moderate
November Weather4°C (40°F)96 mm (3.8 inches)88%moderate
December Weather0°C (33°F)91 mm (3.6 inches)87%low

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