Will I be cold?
Will I be cold in Tucson in May?
Verdict
No — No, comfortable.
Lows stay near 61°F — you won't be reaching for the puffer.
Day vs. night
Day
91°F
Hot
Prioritize shade, hydration, and a brim.
Night
61°F
Comfortable
Comfortable outside without an extra layer.
Why
Tucson in May averages highs of 91°F, lows of 61°F, 2 rainy days.
You can pack for the daytime temps and not worry about the evening dip.
The day-to-night temperature swing is 30°F, which is the real story here — the average number hides how different midday and midnight feel.
Nearby months
Packing pointers
Best shoes
Boots & insulated picks for Tucson in May →