June Weather in Ontario

Last updated: March 2, 2024

The weather in Ontario, United States, during June is characterized by an average temperature of 18°C (64°F). Highs can soar to 27°C (81°F), while lows may dip to 10°C (50°F). Typically, the humidity level in Ontario throughout June hovers around 79%.

10°C (50°F)

Minimum temperature

18°C (64°F)

Average temperature

27°C (81°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In June, Ontario averages 80 mm (3.1 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 15 hours 18 minutes of daylight, with the sun shining for approximately 11 hours 10 minutes each day. Additionally, there is a 43% probability of sunny days during this period.

80 mm (3.1 inches)

Precipitation

11 rainy days

Rainy days

11 hours 10 minutes

Sunshine hours

43%

Chance of sun

UV Index

In June, the UV Index in Ontario reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 8 9 10 9 8 6 4 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Ontario's Climate with Cities Worldwide