UV Index in Portland Today — Check Current UV Levels in Portland, Maine

Check the real-time UV index in Portland right now. Get the current UV level, hourly UV forecast for today, and a 7-day UV outlook for Portland, Maine.

Current UV Index in Portland

The UV index in Portland changes throughout the day, typically peaking between 10am and 2pm local time. Coastal Maine with ocean breezes that mask UV intensity

Hourly UV Forecast for Portland Today

Planning outdoor activities in Portland, Maine? Check our hourly UV breakdown to find the safest windows. Our forecast updates every 15 minutes with data from Open-Meteo weather services.

7-Day UV Forecast for Portland

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

Sun Protection Guide for Portland

UV Index	Level	What to Do in Portland
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.
6–7	High	Limit midday sun. Use SPF 50+, wear a hat and sunglasses.
8–10	Very High	Minimize outdoor time 10am–4pm. Full sun protection essential.
11+	Extreme	Avoid direct sun. Stay indoors or in full shade during peak hours.

Typical UV Levels in Portland

Portland typically experiences UV index values of 7-9 during peak season (June-August) and 1-2 during the off-season. Sharp seasonal contrast — summer UV can be surprisingly strong while winter UV is minimal

Best Time for Outdoor Activities in Portland

The safest time for outdoor activities in Portland is before 10am and after 4pm when UV levels drop significantly. Always check the current UV index before extended outdoor plans.

Recommended SPF for Portland

During peak UV season in Portland (June-August), dermatologists recommend SPF 50+ broad-spectrum sunscreen. Apply 15–20 minutes before sun exposure and reapply every 2 hours.

Portland UV Index by Season

High UV Season in Portland

UV levels in Portland are highest during summer when days are longest, with the UV index regularly reaching 7-9. Protective clothing, wide-brim hats, and UV-blocking sunglasses are recommended alongside sunscreen.

Low UV Season in Portland

UV levels drop in winter when the sun sits low, typically measuring 1-2. SPF 30 is still recommended for extended outdoor time even during cooler months.

Recommended Sun Protection

• EltaMD UV Clear SPF 46 — Face sunscreen. $37
• Neutrogena Ultra Sheer SPF 70 — Body sunscreen. $10
• Banana Boat Light As Air SPF 50 — Twin pack. $15
• Roadbox UPF 50+ Sun Shirt — UV clothing. $19
• Outdoor Research Sombriolet Hat — UPF 50+ hat. $45

We may earn a commission from purchases through these links.

Sun Safety FAQ for Portland

What is the average UV index in Portland?

The average UV index in Portland ranges from 1-2 during the low season to 7-9 during peak months (June-August).

When is UV highest in Portland?

UV is highest in Portland during summer when days are longest, peaking between 10am and 2pm local time.

Do I need sunscreen in Portland?

Yes — whenever the UV index reaches 3 or higher. During peak season (June-August), daily sunscreen use is strongly advised.

UV Index Near Portland

About UV Index in Portland

UV data for Portland, Maine is updated every 15 minutes via Open-Meteo weather services. Always check the current UV index before spending extended time outdoors.