Will I be cold?
Will I be cold in Phoenix in January?
Verdict
Maybe — Chilly at times.
Lows near 44°F — cool mornings and evenings, comfortable afternoons.
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.
Layering wins here. A packable puffer plus a base layer handles the cool end without overheating in the middle of the day.
See a full outfit plan for chilly evenings →
Phoenix in January outfit ideas from ForecastStyle.
Nearby months
Packing pointers
Best shoes
Boots & insulated picks for Phoenix in January →