Montreal Climate and Average Weather
Climate of Montreal: average temperatures, rainfall and seasons month by month.
Climate in Montreal month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 23° | 10° | 2,6 in | ★★☆☆☆ |
| February | 26° | 10° | 1,8 in | ★★☆☆☆ |
| March | 40° | 23° | 3,6 in | ★★☆☆☆ |
| April | 53° | 35° | 4,4 in | ★★★☆☆ |
| May | 65° | 50° | 4,0 in | ★★★★☆ |
| June | 77° | 61° | 5,0 in | ★★★★☆ |
| July | 81° | 66° | 4,0 in | ★★★★☆ |
| August | 78° | 63° | 3,7 in | ★★★★☆ |
| September | 72° | 56° | 2,1 in | ★★★★☆ |
| October | 60° | 46° | 4,1 in | ★★★☆☆ |
| November | 42° | 32° | 2,8 in | ★★☆☆☆ |
| December | 29° | 17° | 3,9 in | ★☆☆☆☆ |
Climate type: Subarctic. Source: Open-Meteo archive (ERA5).
Recent extremes in Montreal
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Montreal compares with nearby places
Annual averages, and the difference against Montreal.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Burlington | 73 mi | 48°F | +34°F warmer | 45 in |
| Mont-Tremblant National Park | 77 mi | 40°F | 38°F cooler | 50 in |
| Vermont | 99 mi | 46°F | about the same | 39 in |
| Ottawa | 103 mi | 45°F | 33°F cooler | 40 in |
| Franconia Notch State Park | 132 mi | 43°F | 35°F cooler | 49 in |
Climate by airport in Montreal
1 airports mapped in this atlas
Best time to visit Montreal
Go in July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Montreal
Today is cooler than average for September. The forecast high of 58°F is 13.5°F below the 72°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 89°F.
What to pack, what to skip
- Layers - the daily swing is 62°F, so mornings feel nothing like afternoons
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Montreal is a city in Quebec. Montreal is known for Old Montreal and festival culture. It has a population of about 1.8 million.
Right now it is 48°F (9°C) in Montreal with clear. It feels like 43°F. Today runs from 45°F to 58°F. Chance of precipitation is 0%. Sightseeing conditions score 8.5/10 - excellent - go now.
The best time to visit Montreal is July, August and September. The climate is subarctic. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 81°F, while January is the coldest with lows near 10°F.
The closest major airport is Montreal-Trudeau International Airport (YUL), about 9 mi away. Nearby highlights include Mont-Tremblant National Park, Franconia Notch State Park, Mount Washington and St. Lawrence River.
In plain terms. Today is cooler than average for September. The forecast high of 58°F is 13.5°F below the 72°F typical for this month. The best window to be outside is roughly 3 PM to 6 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Montreal today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Montreal
| Type | City |
|---|---|
| State | Quebec |
| Country | Canada |
| Continent | North America |
| Coordinates | 45°30′6.8″N 73°34′2.6″W (45.5019, -73.5674) |
| Population | 1.760.000 |
| Known for | Old Montreal and festival culture |
| Local time | 4:25 PM (UTC-04:00) |
| Best months | July, August and September |
| Climate | Subarctic |
Weather map for Montreal
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Montreal
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Montreal?
Montreal is a city in Quebec. Its coordinates are 45.5019, -73.5674. It lies in North America.
What is the weather like in Montreal right now?
It is currently 48°F (9°C) with clear. Humidity is 82% and wind is 8 mph.
When is the best time to visit Montreal?
July, August and September offer the most comfortable conditions in Montreal, which has a subarctic climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Montreal in?
Montreal observes America/Toronto (UTC-04:00). The local time is 4:25 PM.
How many people live in Montreal?
Montreal has a population of approximately 1.8 million.
What is the nearest airport to Montreal?
The closest airports are Montreal-Trudeau International Airport (YUL), 9 mi away and Boston Logan International Airport (BOS), 251 mi away.
What are the top things to do in Montreal?
Popular options include Mont-Tremblant National Park, Franconia Notch State Park, Mount Washington, St. Lawrence River, Baxter State Park and Algonquin Provincial Park.
What places are in Montreal?
Montreal covers 1 places in this atlas, including Montreal-Trudeau International Airport.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-world) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 21, 2026 at 4:25 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
