December · United States
Best time to visit Phoenix in December Weather, crowds & prices
Weather in Phoenix in December
Average temperature 13°C, 29 mm of rain, about 6 days with 6+ hours of sunshine and 41% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
8.2/10
Ranked #5 of 12 months
- Avg temp
- 13°C
- Rainfall
- 29 mm
- Humidity
- 41%
- Days with 6h+ sun
- 6
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Phoenix scores 8.2/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 13°C, 29 mm of rain, and roughly 6 days with 6+ hours of sunshine this month.
Phoenix spreads across the Sonoran desert, with mountain trails, resorts and saguaro forests around it.
December holds up well in Phoenix — 5th best month
Temperatures hover around 13°C (56°F) — the kind of month where neither heat nor cold forces the schedule.
With around 29 mm of rain, any showers tend to pass through rather than settle in; about 6 days with 6+ hours of sunshine and 9.8 hours of daylight fill the rest.
That is 8.2/10 on the same scale — 5th of 12 months, versus 9.6/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening.
Budget for peak pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Phoenix in December?
- In December, Phoenix averages 13°C, 29 mm of rain, and about 6 days with 6+ hours of sunshine. Its climate-comfort score is 8.2/10.
- Is December a good time to visit Phoenix?
- December earns a 8.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Phoenix in December?
- Expect about 29 mm of rain in December. Average humidity is 41% and there are about 6 days with 6+ hours of sunshine.
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