Flagstaff Flaws: Altitude Sun, SPF Lies?

By Franklin Everett Shaw

January 7, 2026

The sun in Flagstaff, Arizona, doesn’t play around. It’s not just the intensity; it’s the altitude. You’re closer to the sun, the air is thinner, and the UV radiation is significantly amplified. Many people, even seasoned outdoor enthusiasts, underestimate the sun’s power here, leading to painful sunburns and long-term skin damage. Let’s cut through the noise and get you protected with a Flagstaff-specific sun safety guide.

First, let’s address the elephant in the room: SPF. SPF, or Sun Protection Factor, measures how well a sunscreen protects you from UVB rays, the primary cause of sunburn. However, it doesn’t tell you anything about UVA protection. UVA rays penetrate deeper into the skin, contributing to premature aging and skin cancer. In Flagstaff, with its intense sun, you need broad-spectrum protection, meaning the sunscreen protects against both UVA and UVB rays.

A common myth is that SPF 30 is “enough.” While SPF 30 blocks about 97% of UVB rays, SPF 50 blocks about 98%. That 1% difference might seem small, but in Flagstaff’s intense sun, it’s significant. I recommend at least SPF 50, and even higher for prolonged outdoor activities. Don’t skimp.

Now, let’s talk sunscreen recommendations readily available in Flagstaff. You can find these at local stores like:

Babbitt’s Backcountry Outfitters: They often carry brands like Badger Balm and Sun Bum, known for their mineral-based options. Mineral sunscreens, containing zinc oxide and titanium dioxide, are generally considered safer for sensitive skin and the environment.
Target and Walmart: These stores offer a wider range of options, including Neutrogena, Coppertone, and Banana Boat. Look for broad-spectrum formulas with high SPF.
Natural Grocers: They stock natural and organic sunscreens, often with fewer chemicals.

For online options delivered to Flagstaff, consider:

La Roche-Posay Anthelios Melt-In Sunscreen Milk SPF 60: This is a chemical sunscreen, but it’s highly effective and well-regarded for its broad-spectrum protection.
EltaMD UV Clear Broad-Spectrum SPF 46: This is a favorite among dermatologists, especially for those with acne-prone or sensitive skin.
Thinkbaby Safe Sunscreen SPF 50+: A great mineral-based option, particularly for children and those with sensitive skin.

How to Apply Sunscreen Like a Pro (Flagstaff Edition):

Timing is everything: Apply sunscreen at least 15-30 minutes before sun exposure. This allows it to bind to your skin.
Don’t be stingy: Most people don’t use enough sunscreen. You need about one ounce (a shot glass full) to cover your entire body.
Hit the hotspots: Pay special attention to your face, ears, neck, hands, and feet. These areas are often neglected.
Reapply, reapply, reapply: Reapply sunscreen every two hours, or immediately after swimming or sweating. Flagstaff’s dry climate can cause sunscreen to wear off faster.
Don’t forget your lips: Use a lip balm with SPF 30 or higher.
Even on cloudy days: UV rays can penetrate clouds, so sunscreen is essential even when it’s overcast.

Common Mistakes and How to Avoid Them:

Relying solely on sunscreen: Sunscreen is just one part of sun protection. Wear protective clothing, such as long sleeves, pants, and a wide-brimmed hat.
Forgetting sunglasses: Protect your eyes from UV damage with sunglasses that block 100% of UVA and UVB rays.
Thinking you’re immune because you’re tan: A tan provides minimal protection against sunburn and skin cancer.
Using expired sunscreen: Sunscreen loses its effectiveness over time. Check the expiration date and discard any expired products.
Applying sunscreen only once a day: This is a recipe for disaster in Flagstaff. Reapplication is crucial.

Protective Gear Recommendations:

Hats: A wide-brimmed hat is essential for protecting your face, ears, and neck. Look for hats made from tightly woven fabrics. You can find great options at local stores like Arizona Hiking Shack.
Sunglasses: Choose sunglasses that block 100% of UVA and UVB rays. Consider polarized lenses to reduce glare. Check out the selection at Aspen Optical in Flagstaff.
Clothing: Lightweight, long-sleeved shirts and pants can provide excellent sun protection. Look for clothing with a UPF (Ultraviolet Protection Factor) rating. Many outdoor retailers in Flagstaff, like Peace Surplus, carry UPF-rated clothing.

Real-World Scenarios:

Hiking in the San Francisco Peaks: Apply sunscreen liberally before you start your hike, and reapply every two hours. Wear a hat and sunglasses, and consider wearing long sleeves and pants, especially if you’re hiking above the treeline.
Spending the day at Buffalo Park: Even if you’re mostly in the shade, UV rays can still reflect off the ground. Apply sunscreen to all exposed skin, and reapply frequently.
Walking around downtown Flagstaff: Don’t underestimate the sun’s intensity, even on a short walk. Apply sunscreen to your face, neck, and hands before you leave the house.

Local Resources:

North Country Healthcare: They offer skin cancer screenings and education.
Flagstaff Medical Center: They have dermatologists who can provide expert advice on sun protection and skin cancer prevention.

Living in or visiting Flagstaff means embracing the outdoors, but it also means respecting the sun. By understanding the amplified UV risk, choosing the right sunscreen, applying it correctly, and using protective gear, you can enjoy all that Flagstaff has to offer without risking your skin’s health. Don’t let the sun ruin your adventure. Be smart, be protected, and enjoy the beauty of Northern Arizona.