30YearWeather
Phoenix in January
Phoenix weather in January - United States
🌤️Mild & Comfortable

Phoenix Weather in January

Plan your January trip to Phoenix, United States. Based on 30 years of NASA data, expect temperatures of 19°C (high) to 5°C (low), with 8% rain probability and 8 hours of daily sunshine. Great conditions with only 0 rainy days expected.

Avg High
19°C

Hottest around day 31

Avg Low
5°C

Coolest around day 1

Rainy Days
0days

8% avg rain chance

Sunshine
8hrs/day

Winter season

Phoenix January Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Phoenix

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Major Hub
91/ 100
Traffic Index

Extremely busy airport

Peak Daily Arrivals

0

slots per day

Peak

May

Low

Nov

Monthly Traffic Distribution

667
Jan
696
Feb
750
Mar
804
Apr
821
May
592
Jun
603
Jul
562
Aug
604
Sep
599
Oct
554
Nov
687
Dec
Traffic Level
Low Season

Key Connections

Denver (DEN)
Los Angeles (LAX)
Seattle Tacoma (SEA)
Salt Lake City (SLC)
San Diego (SAN)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is January a Good Time to Visit Phoenix?

👍Solid choice for most travelers
Short Answer

January delivers Phoenix's best weather - 19°C days, rare rain (8%), and comfortable 51% humidity. Book accommodation early as this is well-known as an excellent period.

Decision Factors

Excellent dry conditions

Only 8% rain probability - ideal for outdoor activities

Comfortable humidity levels

51% humidity - pleasant conditions

Plenty of sunshine

8.4h of sunshine daily

Shoulder season - balanced conditions

81% of peak - good value with moderate crowds

Good For

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 18.6°C temperatures and low 8% rain risk

  • 👴
    Elderly travelers

    Comfortable 18.6°C temperature range with manageable humidity

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 18.6°C, 8% rain chance

  • 📸
    Photographers

    8.4h sunshine, 63% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

Who Should Avoid

Suitable for most traveler types

930 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Phoenix in January averages 19°C with 8% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Phoenix in January

What are the temperatures in Phoenix in January?

Daytime highs average 19°C, nights drop to 5°C. There's a significant day/night temperature swing.

How many rainy days in Phoenix in January?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Phoenix in January?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is January peak season in Phoenix?

This is typically peak season with higher prices. Book 2-3 months ahead.