What August feels like in Montreal
August is late summer in Montreal. Afternoons are warm and pleasant, good for long days out. Evenings bring a clear drop in temperature, and nights stay mild. The air carries some moisture, so hot spells feel a little sticky.
Rain in Montreal in August
Expect a mix of dry and wet days, with rain about one day in 3. When rain comes it is heavy, about 9 mm (0.4 in) per wet day, often in short, strong bursts. That is close to Montreal's typical rain per wet day for the whole year (about 8 mm). It is among the three wettest months of the year.
Daylight and sunshine in August
On 15 August the sun rises at about 5:54 am and sets around 8:04 pm local time, giving 14 h 10 min of daylight. Days are getting shorter: 1 h 12 min less daylight than in mid-July. The sun is out for roughly 79% of those daylight hours, so there are plenty of bright spells.
How August compares to the rest of the year
August is the 2nd warmest month of the year in Montreal. Afternoons run 1.3°C (2.3°F) cooler than in July, with 7 mm more rain. September is cooler again. The next month's average high: 21°C (69.8°F).
Who August suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
Tips for visiting Montreal in August
Versatile Layers
Mornings and evenings are cooler than midday, so dress in layers.
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Sunglasses
Plenty of sun, so bring sunglasses and a cap.
Quick questions
How warm is Montreal in August?
It feels warm: typical highs are 24.8°C (76.6°F), with lows near 16.7°C (62.1°F).
Does it rain a lot in Montreal in August?
It does: about 12 rainy days bring roughly 108 mm, so plan some indoor options.
What should I wear in Montreal in August?
Based on the averages: versatile layers, rain protection and sunglasses. Add a layer for after dark.
Is August or September better for visiting Montreal?
September, narrowly: it ranks #1 of 12 among Montreal's months, against #3 for the other. September is cooler and has fewer rainy days.