The temperatures in Oshawa in July are comfortable with low of 17°C and and high up to 25°C.
You can expect rain for roughly half of the month of July in Oshawa. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Oshawa in July 2025.
If you’re planning to visit Oshawa in the near future, we highly recommend that you review the 14 day weather forecast for Oshawa before you arrive.
Temperatures
25° / 17°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
160
mm
Sun Hours
10.9
Hrs
