Phoenix in December
In December, Phoenix averages 19°C (65°F) during the day and 6°C (43°F) at night, with around 7 days of rain (39 mm total).
Peak seasonConditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.
December is a great month to visit Phoenix: pleasant temperatures and relatively few wet days.
How December compares to the rest of the year in Phoenix
December is one of the coolest months in Phoenix (12th of 12) and moderately rainy compared to the rest of the year (4th of 12). Daytime temperature runs 12°C below the annual average (30°C). December runs 6°C cooler than November (25°C) and warms a further 1°C into January (19°C).
December sunrise & sunset in Phoenix
Times shown for Phoenix local time (America/Phoenix), calculated for the 15th of December. They shift by a few minutes day to day across the month.
Photography light in Phoenix — December
Golden-hour and blue-hour windows for the 15th of December, in Phoenix's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Phoenix in December
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on December's tier (Peak season) and Phoenix's popularity.
December in United States — events that affect travel
Known cultural, religious, or national events that surge prices, fill hotels, or close businesses during this month. Plan around them, or build your itinerary around the ones you'd like to see.
Major travel surge plus widespread Dec 24-26 and Jan 1 business closures.
Plan: Book flights and hotels well ahead; expect many restaurants/shops closed Dec 25 and Jan 1.
Crowds & pricing — December in Phoenix
Phoenix is in peak season during this month — expect bigger crowds at famous sights, higher hotel and flight prices, and longer queues. Restaurant reservations a few days out are advisable, and any boutique hotels you have your eye on should be booked weeks ahead. The trade-off: most attractions, restaurants, and seasonal services are fully open, the weather is at its most reliable, and the city feels at its most alive.
Why this tier: excellent tourism weather Christmas / New Year travel surge
Sun & mosquito risk — December in Phoenix
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Phoenix in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 19°C / 66°F | 6°C / 42°F | 27 mm | 6 | — |
| February | 22°C / 71°F | 7°C / 45°F | 29 mm | 5 | — |
| March | 26°C / 78°F | 11°C / 51°F | 22 mm | 4 | — |
| April | 31°C / 87°F | 15°C / 60°F | 3 mm | 2 | — |
| May | 34°C / 94°F | 20°C / 67°F | 3 mm | 2 | — |
| June | 41°C / 105°F | 26°C / 78°F | 5 mm | 2 | — |
| July | 41°C / 105°F | 29°C / 84°F | 52 mm | 11 | — |
| August | 40°C / 103°F | 28°C / 82°F | 39 mm | 10 | — |
| September | 37°C / 98°F | 24°C / 76°F | 32 mm | 7 | — |
| October | 31°C / 88°F | 17°C / 63°F | 24 mm | 4 | — |
| November | 25°C / 76°F | 11°C / 51°F | 15 mm | 3 | — |
| December | 19°C / 65°F | 6°C / 43°F | 39 mm | 7 | — |
Other cities with similar December weather
🌍 See the full ranked list of climate twins for Phoenix in December →
Frequently asked questions
How hot is Phoenix in December?
In December, Phoenix averages a high of 19°C (65°F) and a low of 6°C (43°F) — generally mild and pleasant.
Does it rain a lot in Phoenix in December?
December sees occasional rain in Phoenix, with about 7 rainy days on average.
Is December a good time to visit Phoenix?
December is mild and pleasant. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Phoenix in December?
Pack light layers for warm days and cooler evenings. See the full December packing list for Phoenix for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.