Weather Comparison
Quebec City vs Boston
Side-by-side weather comparison for September
September Weather: Quebec City vs Boston
| Metric | Quebec City | Boston | Better |
|---|---|---|---|
| Average HighHigher is warmer | 19°C (66°F) | 23°C (73°F)▲ | Boston |
| Average LowHigher is milder | 11°C (52°F) | 15°C (59°F)▲ | Boston |
| Rain DaysFewer is drier | 11 days | 8 days▲ | Boston |
| PrecipitationLess is drier | 111 mm | 90 mm▲ | Boston |
| Sunshine HoursMore is sunnier | 9h/day | 9h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 15 km/h▲ | 18 km/h | Quebec City |
Which City is Better in September?
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Boston edges ahead as the better destination in September. Boston offers 9 hours of daily sunshine with only 8 rain days, while Quebec City sees 9 sunshine hours and 11 rain days.
Quebec City sits in the comfortable travel range at 19°C. Boston is also comfortable at 23°C.
For travelers who prioritize dry weather, Boston is the stronger choice in September.
Temperature Comparison in September
Quebec City reaches an average high of 19°C (66°F) and drops to 11°C (52°F) at night during September. The daily temperature range is 8°C, meaning moderate variation throughout the day.
Boston averages 23°C (73°F) for the high and 15°C (59°F) for the low, with a daily range of 8°C. The 4°C difference is noticeable but not dramatic.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.
Rainfall Comparison in September
Quebec City receives approximately 111 mm of rainfall across 11 rain days during September. You can expect rain roughly every other day.
Boston sees 90 mm over 8 rain days. That makes Boston the drier option by 3 rain days and 21 mm of total precipitation.
Both cities share similar humidity levels at 65%.
What to Pack: Quebec City vs Boston
Packing for Quebec City in September
Highs of 19°C, lows of 11°C, 11 rain days
- ✓warm layers
- ✓a mid-weight jacket
- ✓long trousers
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
Packing for Boston in September
Highs of 23°C, lows of 15°C, 8 rain days
- ✓light layers
- ✓a light jacket for evenings
- ✓sunscreen
- ✓a packable rain jacket
- ✓an umbrella
Year-Round Comparison: Quebec City vs Boston
The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.September is highlighted for quick reference.
| Month | Quebec City | Boston | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | -7°C | 12d | 2°C | 10d |
| Feb | -5°C | 10d | 3°C | 9d |
| Mar | 1°C | 11d | 7°C | 11d |
| Apr | 8°C | 12d | 14°C | 11d |
| May | 17°C | 13d | 19°C | 11d |
| Jun | 22°C | 12d | 25°C | 10d |
| Jul | 24°C | 15d | 28°C | 10d |
| Aug | 23°C | 13d | 27°C | 9d |
| Sep | 19°C | 11d | 23°C | 8d |
| Oct | 11°C | 13d | 16°C | 10d |
| Nov | 4°C | 12d | 10°C | 10d |
| Dec | -3°C | 13d | 5°C | 11d |
Quebec City Weather in September
Full forecast, packing tips, and activities
Boston Weather in September
Full forecast, packing tips, and activities