The temperatures in Phoenix in January are quite cold with temperatures between 9°C and 19°C, warm clothes are a must.
The wather in Phoenix in January can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Phoenix in January 2025.
If you’re planning to visit Phoenix in the near future, we highly recommend that you review the 14 day weather forecast for Phoenix before you arrive.