Phoenix Weather In September: A Comprehensive Guide

Wondering what the Phoenix, Arizona weather in September is like? Expect hot days, cooler evenings, and a gradual transition from summer's peak to the more pleasant fall season. This guide will cover everything you need to know about the temperature, rainfall, sunshine, and what to expect during a September visit to the Valley of the Sun.

Key Takeaways

• September in Phoenix is still hot, with average daily highs in the low 100s°F (around 38°C).
• The monsoon season typically winds down, leading to less rainfall than July and August.
• Evenings begin to cool off, offering a welcome respite from the daytime heat.
• It's a great time to visit for those who enjoy warm weather but want to avoid the extreme heat of summer.
• Outdoor activities become more enjoyable as the month progresses.

Introduction

September in Phoenix marks a transitional period. The scorching summer temperatures begin to moderate, and the humidity often decreases. While the mercury still climbs high, the evenings offer a welcome relief. This guide provides a detailed look at what you can expect regarding temperature, rainfall, and sunshine, along with tips to make the most of your September visit. We'll delve into historical weather patterns, what to pack, and suggested activities to help you plan your trip.

What & Why

Phoenix in September is a study in contrasts. The intense summer heat lingers at the beginning of the month, but gradually tapers off as September progresses. The monsoon season, which brings afternoon thunderstorms and increased humidity, typically starts to wane. This makes it a popular time to visit for people looking for warmer weather than most of the country is experiencing, without the unbearable heat of July and August. The cooler evenings also make outdoor activities more comfortable. However, it is still hot, and visitors need to take precautions against the sun and heat. — Steelers Game Today: Schedule, Time & How To Watch

Temperature

The average high temperature in Phoenix during September is around 101°F to 104°F (38°C to 40°C), with the beginning of the month being the warmest. The average low temperature is in the mid-70s°F (around 24°C), making for comfortable evenings. This temperature range is significantly lower than July and August, when average highs often exceed 107°F (41.6°C).

Rainfall

September is typically the tail end of the monsoon season. This means that rainfall amounts are generally less than in July and August. However, occasional thunderstorms are still possible, particularly in the early part of the month. The average rainfall for September is around 0.5 to 1 inch (1.3 to 2.5 cm).

Sunshine

Phoenix enjoys abundant sunshine in September, with an average of 10 to 11 hours of sunlight per day. This makes it ideal for outdoor activities, though precautions against the sun's intensity are still necessary. The clear skies are perfect for enjoying the desert landscape and the many attractions Phoenix has to offer.

Benefits of Visiting in September

• Moderating Temperatures: The gradual decrease in temperature makes outdoor activities more enjoyable.
• Fewer Crowds: Compared to the peak summer months, there are fewer tourists.
• Lower Prices: Hotels and flights are often more affordable than in the high season.
• Beautiful Sunsets: The clear skies often create stunning sunsets.

Risks & Considerations

• Still Hot: While cooler than July and August, September can still experience high temperatures.
• Sun Protection: Protect yourself from the sun with sunscreen, hats, and sunglasses.
• Stay Hydrated: Drink plenty of water to avoid dehydration.
• Monsoon Possibility: Be prepared for potential afternoon thunderstorms, particularly early in the month.

How-To / Steps / Framework Application

Planning a trip to Phoenix in September requires some preparation. Here's a step-by-step guide to help you:

1. Check the Forecast: Monitor the weather forecast a few days before your trip and throughout your stay. Websites like the National Weather Service and Accuweather provide detailed information.
2. Pack Appropriately: Bring light-colored, breathable clothing, a hat, sunglasses, and sunscreen. Pack layers for cooler evenings.
3. Book Accommodations: Reserve your hotel or vacation rental in advance, especially if you're traveling during a popular event.
4. Plan Activities: Research outdoor and indoor activities that interest you. Consider visiting during events like the Arizona State Fair, which often starts in mid-October.
5. Stay Hydrated: Drink plenty of water throughout the day, especially if you're spending time outdoors.
6. Be Sun Smart: Apply sunscreen regularly, seek shade during peak sun hours (10 AM to 4 PM), and wear a hat and sunglasses.
7. Transportation: Plan for transportation. Consider renting a car to explore the surrounding areas, or utilize ride-sharing services and public transport.

Examples & Use Cases

Here are some examples of what you can expect and how to plan your activities in Phoenix in September:

• Outdoor Adventures: Enjoy hiking in the early morning or late afternoon. Popular trails include Camelback Mountain and Piestewa Peak. Remember to bring plenty of water.
• Pool Time: Spend time at your hotel pool or a local water park. The water will provide a refreshing break from the heat. Be sure to apply sunscreen frequently.
• Sightseeing: Visit popular attractions like the Desert Botanical Garden, the Musical Instrument Museum (MIM), or Taliesin West. Many of these locations offer indoor exhibits, providing relief from the sun.
• Dining: Enjoy outdoor dining in the evenings at one of Phoenix's many restaurants. Many restaurants offer shaded patios or misters to help keep you cool.
• Events: Check local event listings for festivals, concerts, and other events happening in September. The Arizona State Fair often begins in mid-October, so you might catch some of the early events.

Case Study: Hiking Camelback Mountain

A family visited Phoenix in mid-September and decided to hike Camelback Mountain. They started their hike early in the morning (around 6 AM) to avoid the midday heat. They brought plenty of water, wore hats and sunscreen, and took breaks in the shade. Despite the early start, the temperature was still in the low 90s°F. They successfully completed the hike, but realized the importance of proper preparation and choosing the right time of day. — BYU Game Today: Schedule, Updates & Where To Watch

Best Practices & Common Mistakes

Best Practices

• Early Morning/Late Afternoon Activities: Schedule outdoor activities for the cooler parts of the day.
• Stay Informed: Keep an eye on the weather forecast throughout your stay.
• Prioritize Hydration: Drink plenty of water to prevent dehydration.
• Sun Protection: Wear sunscreen, hats, and sunglasses, and seek shade when possible.
• Check for Events: Look for events and festivals happening in September.

Common Mistakes to Avoid

• Overestimating Tolerance: Don't underestimate the heat. Take breaks, and don't push yourself too hard.
• Ignoring Hydration: Dehydration can quickly lead to heat exhaustion. Drink water regularly.
• Neglecting Sun Protection: Sunburn can ruin your trip. Always wear sunscreen and protective clothing.
• Lack of Planning: Not planning your activities can lead to being stuck outdoors during the hottest part of the day.
• Assuming Monsoon Season is Over: Be prepared for potential rain and thunderstorms, especially at the beginning of the month.

FAQs

• What is the average temperature in Phoenix in September? The average high temperature is in the low 100s°F (around 38-40°C), and the average low is in the mid-70s°F (around 24°C).
• Does it rain a lot in Phoenix in September? Rainfall is typically less than in July and August, but occasional thunderstorms are still possible, with an average rainfall of 0.5 to 1 inch.
• Is September a good time to visit Phoenix? Yes, it is a good time to visit for those who enjoy warm weather but want to avoid the extreme heat of summer. The evenings are cooler, and the crowds are smaller than during the peak summer months.
• What should I pack for a trip to Phoenix in September? Pack light-colored, breathable clothing, a hat, sunglasses, sunscreen, and layers for cooler evenings.
• What outdoor activities can I do in Phoenix in September? You can enjoy hiking, swimming, golfing, and exploring the many parks and trails around the city.
• Are there any events in Phoenix in September? Check local listings for festivals, concerts, and other events. The Arizona State Fair may start in mid-October.

Conclusion with CTA

Phoenix in September offers a blend of warm days, cooler evenings, and a host of outdoor and indoor activities. By preparing for the heat and staying informed about the weather, you can have a memorable trip. Ready to experience the beauty and charm of Phoenix in September? Plan your visit today, and make the most of the transition from summer to fall. — Walmart Moses Lake WA: Hours, Location & Services

Last updated: October 26, 2023, 10:00 UTC