UV Index in Phoenix Today — Check Current UV Levels in Phoenix, Arizona

Check the real-time UV index in Phoenix right now. Get the current UV level, hourly UV forecast for today, and a 7-day UV outlook for Phoenix, Arizona. Our free UV checker helps you know exactly when sun protection is needed before heading outdoors.

Current UV Index in Phoenix

The UV index in Phoenix changes throughout the day, typically peaking between 10am and 2pm local time. Use our interactive tool above to check the current level. One of the highest UV cities in the US — extreme UV is the norm from April through October

Hourly UV Forecast for Phoenix Today

Planning outdoor activities in Phoenix, Arizona? Check our hourly UV breakdown to find the safest windows. Morning hours before 10am and late afternoon after 4pm generally have the lowest UV levels. Our forecast updates every 15 minutes with data from Open-Meteo weather services.

7-Day UV Forecast for Phoenix

Plan your week in Phoenix with our 7-day UV index forecast. See which days will have the highest UV so you can schedule outdoor activities accordingly and prepare with the right level of sun protection.

Sun Protection Guide for Phoenix

UV Index	Level	What to Do in Phoenix
0–2	Low	Enjoy outdoor activities freely. Sunscreen optional for most skin types.
3–5	Moderate	Wear SPF 30+ sunscreen. Seek shade during midday hours in Phoenix.
6–7	High	Limit midday sun exposure. Use SPF 50+, wear a hat and sunglasses.
8–10	Very High	Minimize outdoor time between 10am–4pm. Full sun protection essential.
11+	Extreme	Avoid direct sun exposure. Stay indoors or in full shade during peak hours.

Typical UV Levels in Phoenix

Phoenix typically experiences UV index values of 11–13 during peak season (April–October) and 4–6 during the off-season. Minimal cloud cover and intense sun create high to extreme UV for most of the year

Best Time for Outdoor Activities in Phoenix

The safest time for outdoor activities in Phoenix is before 10am and after 4pm when UV levels drop significantly. From spring through fall under consistently clear skies, midday UV can reach very high or extreme levels. Always check the current UV index before extended outdoor plans.

Recommended SPF for Phoenix

During peak UV season in Phoenix (April–October), dermatologists recommend SPF 50+ broad-spectrum sunscreen. Apply 15–20 minutes before sun exposure and reapply every 2 hours — or immediately after swimming or sweating. During lower UV months, SPF 30 is typically sufficient for most skin types.

Phoenix UV Index by Season

High UV Season in Phoenix

UV levels in Phoenix are highest from spring through fall under consistently clear skies, with the UV index regularly reaching 11–13. During this period, unprotected fair skin can burn in as little as 10–15 minutes. Protective clothing, wide-brim hats, and UV-blocking sunglasses are recommended alongside sunscreen.

Low UV Season in Phoenix

UV levels in Phoenix drop only slightly during the mild winter months, typically measuring 4–6 on the UV index scale. While the burn risk is lower, UV radiation still reaches the surface — especially on clear days. SPF 30 is recommended for extended outdoor time even during the cooler months.

Recommended Sun Protection

• EltaMD UV Clear SPF 46 — #1 face sunscreen for daily protection. $37
• Supergoop! Glowscreen SPF 40 — Tinted primer with UV protection. $22
• Neutrogena Ultra Sheer SPF 70 — Budget body sunscreen. $10
• Banana Boat Light As Air SPF 50 — Lightweight twin pack. $15
• Roadbox UPF 50+ Sun Shirt — UV protective clothing. $19
• Outdoor Research Sombriolet Hat — UPF 50+ sun hat. $45

We may earn a commission from purchases through these links.

Related: UV Index Explained · UV Radiation Health Risks

Sun Safety FAQ for Phoenix

What is the average UV index in Phoenix?

The average UV index in Phoenix ranges from 4–6 during the low season to 11–13 during peak months (April–October). Year-round averages depend on season, cloud cover, and time of day.

When is UV highest in Phoenix?

UV is highest in Phoenix from spring through fall under consistently clear skies, peaking between 10am and 2pm local time. The strongest UV months are typically April–October.

Do I need sunscreen in Phoenix?

Yes — whenever the UV index reaches 3 or higher in Phoenix, the World Health Organization recommends sun protection. During peak season (April–October), daily sunscreen use is strongly advised for all skin types.

UV Index Near Phoenix

Check UV levels in cities near Phoenix:

UV Index in Other Cities

About UV Index in Phoenix

The UV index in Phoenix, Arizona is influenced by latitude, altitude, season, cloud cover, and ozone layer thickness. UV radiation reflects off water, sand, snow, and concrete — increasing exposure even in shaded areas. Always check the current UV index before spending extended time outdoors in Phoenix. Data is updated every 15 minutes via Open-Meteo weather services.