Tucson weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Excellent
Best time to visit: November – April
What is the weather like in Tucson in December?
In December, Tucson is mild: daytime highs average 18 °C, and nights cool down to about 4 °C. The sun shines for around 7 hours a day. Rain is rare: about 4 days bring 20 mm in total. All in all, December is an excellent month for a holiday in Tucson.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 95 | 90 | 92 |
| Day | 23° | 18° | 18° |
| Night | 9° | 4° | 4° |
| Sun | 7 h | 7 h | 7 h |
| Rain days | 2 | 4 | 3 |
More details for December
- Daylight
- 10 h 3 min07:17 – 17:20
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 34 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−7America/Phoenix
How the score comes together
- Temperatureweight 50 %95 %
- Sunshineweight 20 %60 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Sunscreen
- A jumper for the evenings
Tucson in December: quick answers
Is Tucson hot in December?
No. In December, Tucson is mild: daytime highs average 18 °C and nights drop to about 4 °C.
Does it rain much in Tucson in December?
Rain is rare: about 4 days bring 20 mm in total.
Tucson month by month
The whole year in TucsonAll destinations: USAWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences