Washington DC vs New York

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, New York edges ahead as the better destination in September. New York offers 9 hours of daily sunshine with only 9 rain days, while Washington DC sees 9 sunshine hours and 10 rain days.

Washington DC sits in the comfortable travel range at 26°C. New York is also comfortable at 24°C.

For travelers who prioritize dry weather, New York is the stronger choice in September.

Washington DC reaches an average high of 26°C (79°F) and drops to 17°C (63°F) at night during September. The daily temperature range is 9°C, meaning moderate variation throughout the day.

New York averages 24°C (75°F) for the high and 16°C (61°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 September.

Washington DC receives approximately 116 mm of rainfall across 10 rain days during September. You can expect rain roughly every other day.

New York sees 98 mm over 9 rain days. That makes New York the drier option by 1 rain day and 18 mm of total precipitation.

Both cities share similar humidity levels at 65%.