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April Weather in Ancaster, Canada

Last updated: June 18, 2025

In April, the average temperature in Ancaster, Canada hovers around 7°C (44°F), with extremes ranging from a chilly -6°C (22°F) to a pleasant 27°C (81°F). Visitors should prepare for 103 mm (4.1 in) of precipitation spread over 13 days, while the air maintains a high average humidity of 87%.

April Temperature in Ancaster

In April in Ancaster, the average temperature is 7°C (44°F). Maximum temperatures can reach 27°C (81°F), while minimums can drop as low as -6°C (22°F). This makes Ancaster a destination with varied weather, so travelers should prepare for both warm and chilly conditions.

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

The chart illustrates April temperature patterns in Ancaster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ancaster, April typically has an average temperature of 7°C (44°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec252634445767727064523831
Data source: Temperature data for Ancaster 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 Ancaster

In Ancaster in April, the precipitation amount is 103 mm (4.1 in) spread over a duration of 13 days.

April Precipitation Trends in Ancaster

The chart displays monthly precipitation patterns in Ancaster, 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 Ancaster, April typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec69736510396989389691017573
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ancaster

In Ancaster in April, humidity is 87%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring travelers to layer up to stay warm and dry.

April Average Humidity in Ancaster

This chart illustrates the average monthly humidity levels in Ancaster, 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 Ancaster is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%88%87%83%81%79%80%81%84%88%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ancaster

In Ancaster 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 Ancaster.

Maximum UV Index Levels in Ancaster for April

The chart shows the monthly maximum UV Index (UVI) for Ancaster 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 Ancaster typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Ancaster 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 Ancaster Compares to Other Months

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

This table compares monthly weather conditions in Ancaster, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)69 mm (2.7 inches)90%low
February Weather-3°C (26°F)73 mm (2.9 inches)90%moderate
March Weather1°C (34°F)64 mm (2.5 inches)87%moderate
April Weather7°C (44°F)103 mm (4.1 inches)87%very high
May Weather14°C (57°F)96 mm (3.8 inches)82%very high
June Weather19°C (67°F)98 mm (3.9 inches)81%very high
July Weather22°C (73°F)93 mm (3.6 inches)79%very high
August Weather21°C (71°F)89 mm (3.5 inches)80%very high
September Weather18°C (64°F)69 mm (2.7 inches)81%high
October Weather11°C (53°F)101 mm (4.0 inches)84%moderate
November Weather3°C (38°F)75 mm (2.9 inches)88%moderate
December Weather-1°C (31°F)73 mm (2.9 inches)87%low

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