January 20 is statistically one of the best days of the year in Phoenix. With minimal rain risk (9%) and pleasant highs of 19°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Phoenix right now—this is when the city truly comes alive with visitors. Note: January 20 is Martin Luther King, Jr. Day in Phoenix, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Phoenix
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Phoenix Weather Forecast for January 20
"Mild & Comfortable. Expect average highs of 18.9°C. 9% chance of rain."
What to Wear in Phoenix in January
Based on historical data for January 20, Phoenix typically experiences temperatures between 5.6°C and 18.9°C. We recommend packing light jacket, long pants, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (9% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Phoenix
Smart Suitcase
- Light Jacket
- Long Pants
- Layers (Onion System)
Average High
18.9°C
Daytime Peak
Average Low
5.6°C
Nighttime Low
Feels Like
18.9°C
🌤️ Feels accurate
Rain Chance
9%
Avg 0.2mm if it rains
Cloud Cover
39%
Overcast
Pressure
1017.6 hPa
Medium volatility
Phoenix Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 82% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 160 min to burn
Type III-IV
🟡 240 min to burn
Type V-VI
🟢 400 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
8.2°C
Dry air
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Martin Luther King, Jr. Day
Flight Traffic
High
81/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~667
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Phoenix
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:31
☀️ Noon
12:40
🌇 Sunset
17:48
⏱️ Daylight
10h 16m
Wind Speed
12.1 km/h
Gentle breeze
Sunshine
8.3 hrs
Direct Sun (Cloud-free)
Humidity
50%
Comfortable
Travel Intelligence
Exclusive flight analytics & health data for Phoenix
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Phoenix
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Phoenix on January 20 averages 18.9°C with a 9% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Phoenix Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
January 17
19.4°C • 8% rain
Score
97
January 18
19.5°C • 6% rain
Score
97
January 19
19.2°C • 7% rain
Score
97
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (January 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Phoenix Worth Visiting on January 20?
Planning a trip to Phoenix on January 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 18.9°C with a 9% historical precipitation risk.
🎉 Local Event: The date coincides with Martin Luther King, Jr. Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 667 landing slots available daily during this period, indicating peak tourist activity.
📊 Historical Extremes: The hottest January 20 recorded in the last 30 years saw temperatures hit 25.4°C in 2020, while the coldest dropped to 2.5°C in 2025.