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Laval weather in September

Long-run climate averages for Laval, Quebec in September, plus what the forecast models say for the days ahead.

September at a glance

In September, Laval averages 23°C by day and 13°C at night. The wettest month is usually August.

September in Laval averages a daytime high of 23°C and an overnight low of 13°C, which reads as warm for this part of the world. 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 year

Here 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.

Jan
-2°
-10°
Cold
Feb
-1°
-11°
Cold
Mar
5°
-4°
Cold
Apr
13°
2°
Cool
May
20°
9°
Mild
Jun
24°
14°
Warm
Jul
27°
18°
Warm
Aug
24°
16°
Warm
Wettest
Sep
23°
13°
Warm
Oct
16°
8°
Mild
Nov
7°
0°
Cold
Dec
-1°
-7°
Cold

Common questions

How warm is Laval in September?
Laval averages a daytime high of 23°C in September, with overnight lows around 13°C. These are long-run climate averages, not a forecast — for the actual days ahead see the live model comparison.
Is September a good time to visit Laval?
The most comfortable time to visit Laval is usually May, June, September and October, when daytime highs sit in the pleasant 16-26°C range and the heaviest August rain is behind you.
Does it rain a lot in Laval in September?
The wettest month in Laval is usually August. Across the year the city sees roughly 1226 mm of precipitation.

Laval in other months

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

More about Laval

Laval live forecastBest time to visit LavalWhich forecast is most accurate in Canada?