Mississauga weather in August
Long-run climate averages for Mississauga, Ontario in August, plus what the forecast models say for the days ahead.
In August, Mississauga averages 24°C by day and 15°C at night. It is the wettest month of the year here.
August in Mississauga averages a daytime high of 24°C and an overnight low of 15°C, which reads as warm for this part of the world. It is among the three warmest months of the year here. It is also the wettest month, so build rain into any plan. Across the whole year Mississauga sees roughly 935 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Mississauga forecast with every model compared and how much they currently agree.
Mississauga weather by month
what to expect in Mississauga through the year, 1991-2020 averagesHere is Mississauga's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Mississauga by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Mississauga, scoring 94/100 on our CheckWeather Score, ahead of the Env. Canada at 90. See the full CA accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Mississauga in August?
Is August a good time to visit Mississauga?
Does it rain a lot in Mississauga in August?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .