Weather Comparison
New York vs Rome
Side-by-side weather comparison for September
September Weather: New York vs Rome
| Metric | New York | Rome | Better |
|---|---|---|---|
| Average HighHigher is warmer | 14°C (57°F) | 22°C (72°F)▲ | Rome |
| Average LowHigher is milder | 2°C (36°F) | 13°C (55°F)▲ | Rome |
| Rain DaysFewer is drier | 4 days | 4 days | Tie |
| PrecipitationLess is drier | 50 mm | 45 mm▲ | Rome |
| Sunshine HoursMore is sunnier | 4h/day | 4h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 15 km/h | 15 km/h | Tie |
Which City is Better in September?
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Rome edges ahead as the better destination in September. Rome offers 4 hours of daily sunshine with only 4 rain days, while New York sees 4 sunshine hours and 4 rain days.
New York is on the cooler side at 14°C, requiring warmer clothing. Rome is also comfortable at 22°C.
For travelers who prioritize dry weather, both cities are equally dry in September.
Temperature Comparison in September
New York reaches an average high of 14°C (57°F) and drops to 2°C (36°F) at night during September. The daily temperature range is 12°C, meaning significant temperature swings between day and night.
Rome averages 22°C (72°F) for the high and 13°C (55°F) for the low, with a daily range of 9°C. There is a notable 8°C gap between the two cities, so expect a very different feel.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.
Rainfall Comparison in September
New York receives approximately 50 mm of rainfall across 4 rain days during September. Rain is occasional, so a light rain jacket should suffice.
Rome sees 45 mm over 4 rain days. Both cities are equally rainy this month.
Both cities share similar humidity levels at 65%.
What to Pack: New York vs Rome
Packing for New York in September
Highs of 14°C, lows of 2°C, 4 rain days
- ✓warm layers
- ✓a mid-weight jacket
- ✓long trousers
- ✓a warm scarf
Packing for Rome in September
Highs of 22°C, lows of 13°C, 4 rain days
- ✓light layers
- ✓a light jacket for evenings
- ✓sunscreen
Year-Round Comparison: New York vs Rome
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 | New York | Rome | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 5°C | 3d | 16°C | 6d |
| Feb | 9°C | 3d | 19°C | 5d |
| Mar | 14°C | 4d | 22°C | 4d |
| Apr | 19°C | 5d | 26°C | 2d |
| May | 23°C | 6d | 28°C | 1d |
| Jun | 24°C | 6d | 29°C | 1d |
| Jul | 23°C | 6d | 28°C | 1d |
| Aug | 19°C | 5d | 26°C | 2d |
| Sep | 14°C | 4d | 22°C | 4d |
| Oct | 9°C | 3d | 19°C | 5d |
| Nov | 5°C | 3d | 16°C | 6d |
| Dec | 4°C | 3d | 15°C | 7d |
New York Weather in September
Full forecast, packing tips, and activities
Rome Weather in September
Full forecast, packing tips, and activities