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April Weather in Port Sanilac, United States

Last updated: June 24, 2025

In April, the average temperature in Port Sanilac, United States is a brisk 3°C (38°F). Temperatures can dip as low as -4°C (25°F) and reach a maximum of 13°C (56°F). Expect about 113 mm (4.4 in) of precipitation spread over 13 days. With an average humidity of 86%, it's a month that definitely calls for cozy layers and an umbrella!

April Temperature in Port Sanilac

In April in Port Sanilac, the average temperature is 3°C (38°F). The maximum can reach 13°C (56°F) and the minimum can be as low as -4°C (25°F). This chilly weather makes it essential to pack warm clothing if you're planning to visit, so you can enjoy all the sights while staying cozy.

April Weather in Port Sanilac: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Port Sanilac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Sanilac, April typically has an average temperature of 3°C (38°F), with highs reaching up to 13°C (56°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec282732374557687065544134
Data source: Temperature data for Port Sanilac 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 Port Sanilac

In Port Sanilac in April, the precipitation amount is 113 mm (4.4 in) over the course of 13 days.

April Precipitation Trends in Port Sanilac

The chart displays monthly precipitation patterns in Port Sanilac, 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 Port Sanilac, April typically receives around 113 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec888779113100777182891369979
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Port Sanilac

In Port Sanilac in April humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

April Average Humidity in Port Sanilac

This chart illustrates the average monthly humidity levels in Port Sanilac, 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 Port Sanilac is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Port Sanilac

In Port Sanilac 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 Port Sanilac.

Maximum UV Index Levels in Port Sanilac for April

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

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

This table compares monthly weather conditions in Port Sanilac, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)88 mm (3.5 inches)88%low
February Weather-3°C (27°F)87 mm (3.4 inches)87%moderate
March Weather0°C (32°F)79 mm (3.1 inches)85%moderate
April Weather3°C (38°F)113 mm (4.4 inches)86%very high
May Weather7°C (45°F)100 mm (3.9 inches)80%very high
June Weather14°C (58°F)77 mm (3.0 inches)80%very high
July Weather20°C (68°F)71 mm (2.8 inches)80%very high
August Weather21°C (70°F)82 mm (3.2 inches)80%very high
September Weather18°C (65°F)89 mm (3.5 inches)80%high
October Weather12°C (55°F)136 mm (5.3 inches)84%moderate
November Weather5°C (41°F)99 mm (3.9 inches)89%moderate
December Weather1°C (34°F)79 mm (3.1 inches)86%low

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