Will I be hot?
Will I be hot in Phoenix in January?
Verdict
No — No, comfortable.
Highs cap at 66°F — no heat-management gear needed.
Day vs. night
Day
66°F
Comfortable
A T-shirt and a light overshirt is enough.
Night
44°F
Cold
Cold enough that a hat and gloves become mandatory.
Why
Phoenix in January averages highs of 66°F, lows of 44°F, 4 rainy days.
Temperature is comfortable across the day; pack for style and weather resistance, not heat management.
Nearby months
Packing pointers
Best shoes
Breathable shoes & sandals for Phoenix in January →