Laval weather in August
Long-run climate averages for Laval, Quebec in August, plus what the forecast models say for the days ahead.
In August, Laval averages 24°C by day and 16°C at night. It is the wettest month of the year here.
August in Laval averages a daytime high of 24°C and an overnight low of 16°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 Laval sees roughly 1226 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 Laval forecast with every model compared and how much they currently agree.
Laval weather by month
what to expect in Laval through the yearHere is Laval'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 Laval by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Laval, scoring 90/100 on our CheckWeather Score, ahead of the Env. Canada at 85. See the full CA accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Laval in August?
Is August a good time to visit Laval?
Does it rain a lot in Laval in August?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .