Weather in Tucson in December 2025
- December is usually the wettest month of the year in Tucson;
Average weather
Average temperature in Tucson in December
The expected average maximum temperature in December is +21°C with a maximum of +27°C and a minimum of +2°C.
The average maximum temperature goes up 28% by the end of the month, compared with the beginning of the month, from +15°C to +22°C.
Is Tucson warm or cold in December?
Tucson is typically mild in December.
Maximum temperatures go down compared to the previous month from +23°C to +18°C. The minimum temperature also goes down from +9°C to +5°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the coolest months in Tucson, here is the comparison with other months:
Climate in Tucson in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +23°C | +18°C | +18°C | ||||
| Min. temperature | ||||||
| -3°C | -16°C | -7°C | ||||
| Max. temperature | ||||||
| +34°C | +28°C | +29°C | ||||
| Rainfall | ||||||
| 29 mm | 37 mm | 40 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 42% | 53% | 53% | ||||
| Air pressure | ||||||
| 1015 HPa | 1016 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 20 | 17 | 16 | ||||
| Cloudy days | ||||||
| 6 | 7 | 8 | ||||
| Rainy days | ||||||
| 4 | 6 | 7 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as good as in November. It’s getting colder in December. From +23°C in the day, the average maximum temperature lowers to +18°C. Prepare for more rain. Average rainfall goes from 29 mm to 37 mm. Humidity rises from 42% to 53%. The average wind speed doesn’t change much during December, staying around 2 m/s. The days becoming less sunny, going from 20 sunny days in November to 17 in December.
January brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Tucson is gradually increasing during December, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last December in Tucson?
Climate Change over Years
The climate in Tucson in December has not changed much over the last 43 years.
The average temperature was the lowest in 1983 (+26°C) and the highest in 2017 (+31°C). The driest year was 2002 with only 96 mm of rainfall, and the wettest year was 2012 with 1690 mm.
FAQ
Is December a good time to visit Tucson?
Can you sunbathe in Tucson in December?
Is Tucson rainy in December?
Is it sunny in Tucson in December?
Other cities in USA
Monthly weather in Tucson
Source of the data
For this page, we’ve looked at the typical weather in Tucson, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
