April Weather in South River, Canada

Last updated: June 18, 2025

In April, the average temperature in South River, Canada hovers around 4°C (39°F). Be prepared for chilly conditions, as temperatures can dip as low as -18°C (0°F), while on warmer days, they can rise to a pleasant 28°C (83°F). Expect about 107 mm (4.2 in) of precipitation spread over 15 days, and keep in mind the average humidity level is a high 82%, adding to the overall dampness of the season.

April Temperature in South River

In April in South River, the average temperature is 4°C (39°F). Maximums can reach 28°C (83°F) and minimums can drop as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

April Weather in South River: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in South River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South River, April typically has an average temperature of 4°C (39°F), with highs reaching up to 28°C (83°F) and lows dropping to around -18°C (0°F).

Data source: Temperature data for South River generated using information from the Copernicus Climate Change Service.

April Precipitation in South River

In South River in April, the total precipitation amount is 107 mm (4.2 in) spread over 15 days.

April Precipitation Trends in South River

The chart displays monthly precipitation patterns in South River, 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 South River, April typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in South River

In South River in April, humidity is 82%. With an average temperature of 4°C (39°F), this humidity feels like a chill that seeps into your bones, making it uncomfortable for traveling as you find yourself bundled up, yet still damp and cold.

April Average Humidity in South River

This chart illustrates the average monthly humidity levels in South River, 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 South River is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in South River

In South River in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in South River.

Maximum UV Index Levels in South River for April

The chart shows the monthly maximum UV Index (UVI) for South River 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 South River typically reaches 7, which falls under the high exposure category.

Data source: South River 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 South River Compares to Other Months

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

This table compares monthly weather conditions in South River, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (15°F)	65 mm (2.6 inches)	93%	low
February Weather	-9°C (17°F)	78 mm (3.1 inches)	94%	moderate
March Weather	-4°C (25°F)	63 mm (2.5 inches)	87%	moderate
April Weather	4°C (39°F)	107 mm (4.2 inches)	82%	high
May Weather	11°C (53°F)	106 mm (4.2 inches)	74%	very high
June Weather	16°C (62°F)	126 mm (5.0 inches)	68%	very high
July Weather	20°C (68°F)	108 mm (4.3 inches)	67%	very high
August Weather	18°C (65°F)	133 mm (5.3 inches)	67%	very high
September Weather	14°C (57°F)	133 mm (5.2 inches)	74%	high
October Weather	8°C (46°F)	116 mm (4.5 inches)	83%	moderate
November Weather	-1°C (31°F)	100 mm (4.0 inches)	89%	moderate
December Weather	-6°C (21°F)	86 mm (3.4 inches)	91%	low