Will I be hot?
Will I be hot in New York in May?
Verdict
No — No, comfortable.
Highs cap at 71°F — no heat-management gear needed.
Day vs. night
Day
71°F
Comfortable
A T-shirt and a light overshirt is enough.
Night
54°F
Cool
You'll want a warm layer after sunset — not a heavy coat.
Why
New York in May averages highs of 71°F, lows of 54°F, 11 rainy days.
Temperature is comfortable across the day; pack for style and weather resistance, not heat management.