30YearWeather
Phoenix, September 27
Phoenix street view during September
Historical Weather Analysis

Phoenix Weather on September 27 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

extreme-hot

36°C

High

22°C

Low

8%

Rain

🔥 Feels like 36°C

clear-day
YES, IT'S PARADISE
Peak Season

September 27 is statistically one of the best days of the year in Phoenix. With minimal rain risk (8%) and pleasant highs of 36°C, it's ideal for outdoor adventures. You'll find plenty of company in Phoenix this month as tourism activity remains quite robust.

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Phoenix Weather Forecast for September 27

"Warm & Sunny. Expect average highs of 36°C. 8% chance of rain."

What to Wear in Phoenix in September

Based on historical data for September 27, Phoenix typically experiences temperatures between 22°C and 36°C. We recommend packing t-shirt, light clothing, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (8% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Phoenix

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing
  • Layers (Onion System)

Average High

extreme-hot

36°C

Daytime Peak

Average Low

extreme-cold

22°C

Nighttime Low

Feels Like

partly-cloudy-day

36°C

🔥 Feels accurate

Rain Chance

rain

8%

Avg 0.1mm if it rains

Cloud Cover

cloudy

16%

Clear sky

Pressure

pressure

1009.5 hPa

Low volatility

Phoenix Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

65%Reliable

Based on 10 years of data

Temperature
±5.6°CVariable
Precipitation
4-30%Moderate

Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.

Sun Exposure

UV Index & Safety Guide

4.6Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

06:00 - 10:00

Afternoon

16:00 - 18:00

Time to Sunburn

Type I-II

🔴 17 min to burn

Type III-IV

🟡 26 min to burn

Type V-VI

🟢 43 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

43Poor
TemperatureVery Hot
HumidityComfortable
WindLight Breeze

Dew Point

16.7°C

Noticeable

Heat Stress

Low

No heat warning

😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in United States

Flight Traffic

Busy

74/100 pressure index

Health Advisory

Healthy

Routine only • View Details →

Landing Slots

~604

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Phoenix

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

06:21

☀️ Noon

12:20

🌇 Sunset

18:20

⏱️ Daylight

11h 59m

Golden Hour
Morning06:21 - 06:53
17:47 - 18:20Evening

Wind Speed

wind

14.1 km/h

Gentle breeze

Sunshine

clear-day

10.7 hrs

Direct Sun (Cloud-free)

Humidity

humidity

32%

Comfortable

Travel Intelligence

Exclusive flight analytics & health data for Phoenix

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in Phoenix

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

94/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

100Score
Atmospheric Pressure1009.5 hPa
Volatility:Low
Migraine RiskLow

Stable conditions. Low risk of headaches.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
58AQI
Moderate
PM2.5 Concentration14.9 µg/m³

Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):1
In Sep (30y):0
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Phoenix on September 27 averages 36°C with a 8% precipitation probability. Wedding/Outdoor Event Score: 89/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Phoenix Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2024
43.2°C
Coldest
2017
17.6°C
Rainiest
2025
9.7mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

Compare Other Cities

Same date (September 27) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Phoenix Worth Visiting on September 27?

Planning a trip to Phoenix on September 27? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 36°C with a 8% historical precipitation risk.

✈️ Travel Logistics: Approximately 604 landing slots available daily during this period, indicating peak tourist activity.

📊 Historical Extremes: The hottest September 27 recorded in the last 30 years saw temperatures hit 43.2°C in 2024, while the coldest dropped to 17.6°C in 2017.

Phoenix Weather FAQ