Phoenix weather in January
Temperature, rain and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: November – April
What is the weather like in Phoenix in January?
In January, Phoenix is mild: daytime highs average 19 °C, and nights cool down to about 5 °C. The sun shines for around 7 hours a day. Rain is rare: about 3 days bring 23 mm in total. All in all, January is an excellent month for a holiday in Phoenix.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 92 | 93 | 95 |
| Day | 18° | 19° | 21° |
| Night | 5° | 5° | 6° |
| Sun | 7 h | 7 h | 8 h |
| Rain days | 3 | 3 | 4 |
More details for January
- Daylight
- 10 h 10 min07:32 – 17:42
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 36 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−7America/Phoenix
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %67 %
- 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 January
- Sunscreen
- A jumper for the evenings
Phoenix in January: quick answers
Is Phoenix hot in January?
No. In January, Phoenix is mild: daytime highs average 19 °C and nights drop to about 5 °C.
Does it rain much in Phoenix in January?
Rain is rare: about 3 days bring 23 mm in total.
Phoenix month by month
The whole year in PhoenixAll destinations: USAWhere to go in January
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