Phoenix weather
in December
“Mild and bright — an underrated time to visit.”
Roughly 4 rainy days across the month, on average.
In december, Phoenix settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 20°C (67°F), cooling to 7°C after sunset. Rainfall is moderate — around 4 rainy days spread through the month. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Phoenix in December
- •A light layer for cool mornings and evenings
- •Layers, because the day changes
- •A merino base layer for the cold evenings
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Phoenix in December
- →Breathable travel pantsAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
- →Anti-theft crossbody bagAmazon · shop this
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Where to stay in Phoenix
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Phoenix in December — FAQ
Q01Is December a good time to visit Phoenix?
Is December a good time to visit Phoenix?
Yes — it is a good time to visit, with pleasant, comfortable weather. In December, Phoenix averages a high of 20°C (67°F) and a low of 7°C (44°F), with 31mm of rainfall across roughly 4 rainy days.
Q02What is the average temperature in Phoenix in December?
What is the average temperature in Phoenix in December?
The average high temperature in Phoenix during December is 20°C (67°F), with an average low of 7°C (44°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Phoenix have in December?
How many rainy days does Phoenix have in December?
Phoenix averages approximately 4 rainy days in December, with a total monthly rainfall of about 31mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Phoenix in December?
What should I pack for Phoenix in December?
For Phoenix in December, pack layered clothing for changing temperatures, a merino base layer for evenings, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Phoenix in December?
How crowded is Phoenix in December?
Tourist crowds in Phoenix during December are typically moderate. Consider this when planning accommodation — prices track crowd levels closely.