Boston vs Montreal

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Boston edges ahead as the better destination in August. Boston offers 11 hours of daily sunshine with only 9 rain days, while Montreal sees 11 sunshine hours and 12 rain days.

Boston sits in the comfortable travel range at 27°C. Montreal is also comfortable at 25°C.

For travelers who prioritize dry weather, Boston is the stronger choice in August.

Boston reaches an average high of 27°C (81°F) and drops to 18°C (64°F) at night during August. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Montreal averages 25°C (77°F) for the high and 17°C (63°F) for the low, with a daily range of 8°C. The 2°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in August.

Boston receives approximately 86 mm of rainfall across 9 rain days during August. You can expect rain roughly every other day.

Montreal sees 100 mm over 12 rain days. That makes Boston the drier option by 3 rain days and 14 mm of total precipitation.

Both cities share similar humidity levels at 65%.