April Weather in Oakville, United States

Last updated: June 24, 2025

In April, the average temperature in Oakville, United States hovers around 9°C (49°F), with a potential range spanning from a chilly -3°C (28°F) to a balmy 28°C (82°F). Be prepared for some rain, as 122 mm (4.8 in) of precipitation can be expected over approximately 15 days. The air is quite humid too, with an average humidity level of 83%.

April Temperature in Oakville

In April in Oakville, the average temperature is 9°C (49°F). Maximums can reach 28°C (82°F) and minimums can be as low as -3°C (28°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates April temperature patterns in Oakville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oakville, April typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -3°C (28°F).

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

April Precipitation in Oakville

In Oakville in April, the precipitation amount is 122 mm (4.8 in) over a span of 15 days.

April Precipitation Trends in Oakville

The chart displays monthly precipitation patterns in Oakville, 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 Oakville, April typically receives around 122 mm (4.8 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 Oakville

In Oakville in April, humidity is 83%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable for traveling and requiring extra layers to stay warm and dry.

April Average Humidity in Oakville

This chart illustrates the average monthly humidity levels in Oakville, 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 Oakville is approximately 83%, 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 Oakville

In Oakville in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Oakville, you can refer to this Hourly UV Index in Oakville.

Maximum UV Index Levels in Oakville for April

The chart shows the monthly maximum UV Index (UVI) for Oakville 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 Oakville typically reaches 6, which falls under the high exposure category.

Data source: Oakville 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 Oakville Compares to Other Months

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

This table compares monthly weather conditions in Oakville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	205 mm (8.1 inches)	86%	low
February Weather	4°C (40°F)	171 mm (6.7 inches)	84%	moderate
March Weather	6°C (44°F)	142 mm (5.6 inches)	85%	moderate
April Weather	9°C (49°F)	122 mm (4.8 inches)	83%	high
May Weather	12°C (55°F)	75 mm (2.9 inches)	84%	very high
June Weather	15°C (59°F)	57 mm (2.2 inches)	84%	very high
July Weather	17°C (63°F)	11 mm (0.4 inches)	82%	very high
August Weather	18°C (64°F)	13 mm (0.5 inches)	73%	very high
September Weather	15°C (60°F)	90 mm (3.5 inches)	74%	high
October Weather	10°C (50°F)	137 mm (5.4 inches)	83%	moderate
November Weather	7°C (45°F)	198 mm (7.8 inches)	86%	moderate
December Weather	4°C (40°F)	210 mm (8.3 inches)	87%	low