Phoenix weather in January
January in Phoenix: nice, dry — a great time to visit.
#6 of 12 months in Phoenix · #340 of 897 destinations to visit in January · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Phoenix in January
No notes yet. Open Phoenix on the map to add the first one.
Phoenix climate normals — January
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 5°C / 40°F | |
| Rainfall | 26 mm / 1 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 57% | 🍃 comfortable |
| Dew point | 2°C / 35°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 10.2 h | |
| Wind | 12 km/h / 8 mph | |
| Air quality (US AQI) | 59 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Phoenix?
Loading map…
Phoenix in January — FAQ
- Is January a good time to visit Phoenix?
- January in Phoenix: nice, dry — a great time to visit. It ranks #6 of 12 months for Phoenix on SeasonMap's comfort score (78/100).
- What is the weather like in Phoenix in January?
- In January, Phoenix averages a daily high of 18.8°C and a low of 4.7°C, with about 25.5 mm of rain over roughly 4 rainy days.
- What is the air quality in Phoenix in January?
- Phoenix has a mean US Air Quality Index of about 59 in January.