Climate · Canada

Montreal

Warm and damp from May to September; cold and damp from December to March.

Typical weather, averaged over 30 years45.5°N40 m above the sea
  1. Jan27°-3°10°-12°Rain on about three days a week.
  2. Feb29°-2°9°-13°Rain on about three days a week.
  3. Mar39°4°19°-7°Rain on about three days a week.
  4. Apr54°12°33°1°Rain on about three days a week.
  5. May68°20°47°8°Rain on about three days a week.
  6. Jun78°26°58°14°Rain on about three days a week.
  7. Jul82°28°64°18°Rain on about three days a week.
  8. Aug80°27°63°17°Rain on about three days a week.
  9. Sep74°23°56°13°Rain on about two days a week.
  10. Oct62°17°46°8°Rain on about three days a week.
  11. Nov47°8°34°1°Rain on about three days a week.
  12. Dec34°1°19°-7°Rain on about three days a week.
Each month: its typical high and low, and dots for wet days a week. Tap a month to open it.The best months

The warm season runs from May to September, with highs near 76°F and nights near 58°F. From December to March, highs are nearer 32°F. Rain or snow falls on about three days a week, spread through the year. Daylight runs from about 9 hours in December to 15½ hours in June.The warm season runs from May to September, with highs near 24°C and nights near 14°C. From December to March, highs are nearer 0°C. Rain or snow falls on about three days a week, spread through the year. Daylight runs from about 9 hours in December to 15½ hours in June.

Where Montreal sits

America/Toronto

this place
typical high in Januarytypical high in Februarytypical high in Marchtypical high in Apriltypical high in Maytypical high in Junetypical high in Julytypical high in Augusttypical high in Septembertypical high in Octobertypical high in Novembertypical high in December 40°F4°C95°F35°C
Latitude
45.5°Nnorthern hemisphere
Above the sea
40 mlow-lying
Sunrise, mid-JanuarySunrise, mid-FebruarySunrise, mid-MarchSunrise, mid-AprilSunrise, mid-MaySunrise, mid-JuneSunrise, mid-JulySunrise, mid-AugustSunrise, mid-SeptemberSunrise, mid-OctoberSunrise, mid-NovemberSunrise, mid-December
7:31 AM6:58 AM7:09 AM6:10 AM5:25 AM5:05 AM5:19 AM5:54 AM6:31 AM7:09 AM6:53 AM7:27 AMsets 4:35 PMsets 5:19 PMsets 6:59 PMsets 7:39 PMsets 8:16 PMsets 8:44 PMsets 8:41 PMsets 8:04 PMsets 7:08 PMsets 6:11 PMsets 4:26 PMsets 4:12 PM
Nearest of ours
Mont-Tremblant104 km north-west

The land around Montreal, shaded by its typical high in January, the planning map's own layer.The land around Montreal, shaded by its typical high in February, the planning map's own layer.The land around Montreal, shaded by its typical high in March, the planning map's own layer.The land around Montreal, shaded by its typical high in April, the planning map's own layer.The land around Montreal, shaded by its typical high in May, the planning map's own layer.The land around Montreal, shaded by its typical high in June, the planning map's own layer.The land around Montreal, shaded by its typical high in July, the planning map's own layer.The land around Montreal, shaded by its typical high in August, the planning map's own layer.The land around Montreal, shaded by its typical high in September, the planning map's own layer.The land around Montreal, shaded by its typical high in October, the planning map's own layer.The land around Montreal, shaded by its typical high in November, the planning map's own layer.The land around Montreal, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Through the year

week by week

Temperature

Highs from 27°F in January to 82°F in July.Highs from -3°C in January to 28°C in July.

Chance of a wet day

Wettest in July (45% of days), driest in September (34%).

Cloud cover

Clearest in September (42% cover), cloudiest in January (67%).

Daylight

From 8h 46m in December to 15h 37m in June.

Week by week, lightly smoothed. Shading marks the seasons; the olive line, the best months. Hover or tap a week for its figures.

Month by month

°F°C

Montreal, month by month: the typical high and low, wet days a week, cloud cover and daylight.
MonthTypical low to highWet days a weekCloudDaylight
JanuaryCool season
10°-12°27°-3°
3 days67%9h 08m
FebruaryCool season
9°-13°29°-2°
3 days64%10h 18m
MarchCool season
19°-7°39°4°
3 days62%11h 50m
April
33°1°54°12°
3 days59%13h 29m
MayWarm season
47°8°68°20°
3 days57%14h 53m
JuneWarm seasonAt its best
58°14°78°26°
3 days54%15h 37m
JulyWarm season
64°18°82°28°
3 days46%15h 16m
AugustWarm seasonAt its best
63°17°80°27°
3 days43%14h 02m
SeptemberWarm seasonAt its best
56°13°74°23°
2 days42%12h 26m
October
46°8°62°17°
3 days52%10h 48m
November
34°1°47°8°
3 days61%9h 26m
DecemberCool season
19°-7°34°1°
3 days66%8h 46m

When is the best time to visit Montreal?


The best months are June, or August to September: highs near 77°F, nights near 59°F, and rain on about three days a week.The best months are June, or August to September: highs near 25°C, nights near 15°C, and rain on about three days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

Questions


What is the warmest month in Montreal?

July, with highs near 82°F and lows near 64°F. The coolest is January, with highs near 27°F.July, with highs near 28°C and lows near 18°C. The coolest is January, with highs near -3°C.

When does it rain most in Montreal?

July, with rain on about three days a week. September is the driest, with rain on about two days a week.

How long are the days in Montreal?

From about 9 hours in December to 15½ hours in June.

When are the skies clearest in Montreal?

September, when cloud covers about 42% of the sky on average. January is the cloudiest, at about 67%.

Places with a year like Montreal's

by their highs, lows and wet days

Their highs, lows, wet days and cloud run closest to Montreal's through the year, one place a country. “Six months apart”: their winter is Montreal's summer.

Elsewhere in Canada

All of Canada

Where to stay

1 in our collection

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Montreal. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.