Weather in Montreal — today
Now in Montreal
🌙
+11°
Clear
Feels like +9° · humidity 91%
Today 12.9: +21° / +9°
🕐 01:25
Wind
10 km/h
UV index
0
Air (AQI)
35 · Good
Precipitation
0%
Humidity
91%
Pressure
1017 hPa
Sunrise / sunset
06:29 / 19:11
👕 What to wear today
Comfortable — a T-shirt, a light sweater for the evening.
Feels colder by 2°
Weather for an activity:
Detailed weather information for Montreal
Today, 12 September, Saturday, in Montreal (Canada): partly cloudy, moderately warm. During the day the air will warm up to +21°, at night around +9°. Due to the wind it feels like +9°. Wind up to 15 km/h. No precipitation expected, you won't need an umbrella. A T-shirt is comfortable during the day, but take a light sweater or windbreaker for the evening. The sun will rise at 06:29 and set at 19:11 — daylight lasts 13 hours.Hourly weather in Montreal
💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).
Weather in Montreal for 14 days
Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).
▶
Today 12.9
☁️
+9° +21°
Morning
☁️
+10°
Day
☁️
+21°
Evening
🌇
+19°
Night
🌙
+9°
▶
Tomorrow 13.9
☁️
💧 61%
+16° +23°
Morning
☁️
+18°
Day
☁️
+23°
Evening
🌇
+18°
Night
🌙
+16°
▶
Mon 14.9
🌦️
💧 22%
+10° +17°
Morning
🌦️
+13°
Day
🌦️
+17°
Evening
🌇
+15°
Night
🌙
+10°
▶
Tue 15.9
☁️
💧 17%
+9° +20°
Morning
☁️
+13°
Day
☁️
+20°
Evening
🌇
+17°
Night
🌙
+9°
▶
Wed 16.9
☁️
💧 17%
+16° +22°
Morning
☁️
+18°
Day
☁️
+22°
Evening
🌇
+21°
Night
🌙
+16°
▶
Thu 17.9
🌦️
💧 39%
+15° +18°
Morning
🌦️
+16°
Day
🌦️
+18°
Evening
🌇
+17°
Night
🌙
+15°
▶
Fri 18.9
☁️
💧 34%
+9° +17°
Morning
☁️
+12°
Day
☁️
+17°
Evening
🌇
+15°
Night
🌙
+9°
▶
Sat 19.9
☁️
💧 16%
+11° +18°
Morning
☁️
+14°
Day
☁️
+18°
Evening
🌇
+16°
Night
🌙
+11°
▶
Sun 20.9
⛅
💧 14%
+9° +16°
Morning
⛅
+12°
Day
⛅
+16°
Evening
🌇
+14°
Night
🌙
+9°
▶
Mon 21.9
🌤️
💧 11%
+7° +17°
Morning
🌤️
+11°
Day
🌤️
+17°
Evening
🌇
+15°
Night
🌙
+7°
▶
Tue 22.9
☁️
💧 8%
+5° +14°
Morning
☁️
+8°
Day
☁️
+14°
Evening
🌇
+12°
Night
🌙
+5°
▶
Wed 23.9
☁️
💧 16%
+6° +13°
Morning
☁️
+9°
Day
☁️
+13°
Evening
🌇
+11°
Night
🌙
+6°
▶
Thu 24.9
☁️
💧 27%
+8° +13°
Morning
☁️
+10°
Day
☁️
+13°
Evening
🌇
+12°
Night
🌙
+8°
▶
Fri 25.9
☁️
💧 27%
+9° +16°
Morning
☁️
+12°
Day
☁️
+16°
Evening
🌇
+14°
Night
🌙
+9°
🗺️ Precipitation radar
Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.
Rain intensity:lightmoderateheavy
🎯 What to do in this weather — indices of the day
Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.
🏃 Running
100 / 100
comfort for running · Excellent
🧴 UV
0%
moderate · low
☂️ Rain
0%
unlikely · low
✨ Stars
88 / 100
evening visibility · Excellent
🧺 Laundry drying
55 / 100
will dry outside · Average
🚗 Car wash
95 / 100
no rain expected · Excellent
🌫️ Air quality
35
Good air
European AQI
PM2.5: 7PM10: 7O₃: 41NO₂: 21
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
06:29
Sunset
19:11
Golden hour
18:32
Daylight
13 h (-3 min vs yesterday)
Montreal climate by month
Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.
-6°
-15°
Jan
-5°
-14°
Feb
+1°
-8°
Mar
+9°
+0°
Apr
+17°
+7°
May
+22°
+13°
Jun
+24°
+16°
Jul
+23°
+15°
Aug
+19°
+11°
Sep
+12°
+5°
Oct
+4°
-2°
Nov
-3°
-10°
Dec
swipe sideways →
Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit
| Month | Day | Night | Precipitation | What to pack and what makes the month notable (events, nuances) |
|---|---|---|---|---|
| January | -6° | -15° | 73 mm | Proper winter: -6° daytime, frost and short days. Frequent rain (73 mm over the month) — keep indoor backup plans. 🥶 a down jacket, a hat with ear flaps, warm boots. This is the coldest month of the year. |
| February | -5° | -14° | 61 mm | The coldest stretch: -5° by day, full winter clothing required. ❄️ a warm jacket, a hat, non-slip shoes. |
| March | +1° | -8° | 74 mm | Freezing: +1° by day, -8° at night — full winter gear, ice underfoot is common. It's a rainy month (74 mm) — an umbrella is a must. ❄️ a warm jacket, a hat, non-slip shoes. |
| April | +9° | +0° | 102 mm | Winter weather: about +9° daytime, you need a warm coat and hat. Frequent rain (102 mm over the month) — keep indoor backup plans. 🧥 a warm jacket. |
| May | +17° | +7° | 98 mm | Cool weather: +17° by day, noticeably colder in the evening. One of the wettest months (98 mm): downpours can derail plans. 🙂 a sweater for the evening. |
| June | +22° | +13° | 106 mm | One of the best times to visit: +22° by day, fresh nights. It's a rainy month (106 mm) — an umbrella is a must. 🙂 a sweater for the evening. The longest daylight hours of the year — more time for everything. |
| July | +24° | +16° | 100 mm | Ideal weather: +24° daytime — neither hot nor cold. Frequent rain (100 mm over the month) — keep indoor backup plans. 😊 light summer clothing. This is the hottest month of the year in Montreal. |
| August | +23° | +15° | 101 mm | The most pleasant season: +23° by day, comfortable all day long. One of the wettest months (101 mm): downpours can derail plans. 🙂 a sweater for the evening. Weather-wise, one of the three best months to visit. |
| September | +19° | +11° | 99 mm | One of the best times to visit: +19° by day, fresh nights. It's a rainy month (99 mm) — an umbrella is a must. 🙂 a sweater for the evening. |
| October | +12° | +5° | 111 mm | A fresh month — +12° daytime, take a jacket for walks. Frequent rain (111 mm over the month) — keep indoor backup plans. 🧥 a warm jacket. Statistically the wettest month of the year. |
| November | +4° | -2° | 87 mm | A cold month: +4° by day, long walks get uncomfortable. One of the wettest months (87 mm): downpours can derail plans. ❄️ a warm jacket, a hat, non-slip shoes. |
| December | -3° | -10° | 85 mm | Freezing: -3° by day, -10° at night — full winter gear, ice underfoot is common. It's a rainy month (85 mm) — an umbrella is a must. ❄️ a warm jacket, a hat, non-slip shoes. The shortest daylight of the year — it gets dark early. |
When to visit Montreal
✅ Recommended time to visit
🌟 Best time: June, July, August
Daytime air+22…+24°
Precipitationoften
Why: comfortable +22…+24° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: January, February, March, April, May, September
Daytime air-6…+19°
Precipitationoften
Why: noticeable rain risk (61–102 mm/month) — pack an umbrella and backup plans.
🔴 Not the best time
❄️ Cold season: October, November, December
Daytime air-3…+12°
Precipitationoften
Why: cold and dark (-3…+12° by day, 9 h of daylight) — only if frost and short days don’t put you off.
Bottom line: the best time to visit Montreal is June – August, and the most comfortable months are June, July, August. The toughest months to visit are October, November, December: frequent rain.
🌡️ Today vs the climate normal
Today's high
+21°
Normal for September
+19°
Deviation
2° warmer than normal
A year ago on this day
+18°
Record for this date
+27° (1951)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Montreal
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.
Show the archive for the selected day →
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Weather in cities near Montreal
Frequently asked questions about the weather in Montreal
What is the weather in Montreal right now?＋
Clear, +11°, feels like +9°.
Will it rain in Montreal today?＋
No: 0% chance, 0 mm.
When is the best time to visit Montreal?＋
Best time to visit — June – August.
What time are sunrise and sunset in Montreal?＋
Sunrise 06:29, sunset 19:11.
Does it snow in Montreal in winter?＋
Yes, snow is possible in January, February, March, April, November, December.
What is the climate in Montreal by month?＋
Summers up to +24° in July, winters around -15° in January; the wettest month is October.
Is it cold in Montreal in winter?＋
🥶 Severe frost. You'll need a warm jacket, a hat with ear flaps, gloves and warm boots (felt boots); staying outside for long is dangerous — risk of frostbite.