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June Weather in Oakville, Canada

Last updated: June 18, 2025

In June, the average temperature in Oakville, Canada hovers around 18°C (65°F), providing a comfortable backdrop for exploration. Expect lows of 6°C (44°F) and highs reaching 30°C (87°F), allowing for a pleasant range of experiences. However, do prepare for an average precipitation of 88 mm (3.5 in) spread across 11 days, and be mindful of the average humidity at a humid 79%.

June Temperature in Oakville

In June in Oakville, the average temperature is 18°C (65°F). Maximum temperatures can reach 30°C (87°F), while minimums can dip to as low as 6°C (44°F). This range makes Oakville an ideal destination for travelers seeking pleasant weather and opportunities for outdoor activities.

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

The chart illustrates June 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, June typically has an average temperature of 18°C (65°F), with highs reaching up to 30°C (87°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec262733425465727164533932
Data source: Temperature data for Oakville 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.

June Precipitation in Oakville

In Oakville in June, the total precipitation amount is 88 mm (3.5 in) spread over 11 days.

June Precipitation Trends in Oakville

The chart displays monthly precipitation patterns in Oakville, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Oakville, June typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec73806411098887577631087978
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Oakville

In Oakville in June, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

June Average Humidity in Oakville

This chart illustrates the average monthly humidity levels in Oakville, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Oakville is approximately 79%, 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 June generated using information from the Copernicus Climate Change Service.

June UV Index in Oakville

In Oakville in June, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Oakville.

Maximum UV Index Levels in Oakville for June

The chart shows the monthly maximum UV Index (UVI) for Oakville in June, 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 June, the maximum UV index in Oakville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Oakville June 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 June 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 June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)73 mm (2.9 inches)91%low
February Weather-3°C (27°F)80 mm (3.2 inches)91%moderate
March Weather1°C (34°F)64 mm (2.5 inches)88%moderate
April Weather6°C (43°F)110 mm (4.3 inches)88%very high
May Weather12°C (54°F)98 mm (3.9 inches)82%very high
June Weather18°C (65°F)88 mm (3.5 inches)79%very high
July Weather22°C (72°F)75 mm (2.9 inches)77%very high
August Weather22°C (71°F)77 mm (3.0 inches)72%very high
September Weather18°C (64°F)63 mm (2.5 inches)76%high
October Weather12°C (53°F)108 mm (4.3 inches)83%moderate
November Weather4°C (39°F)79 mm (3.1 inches)88%moderate
December Weather0°C (32°F)78 mm (3.1 inches)87%low

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