UV Index in Portland

Real-time UV forecast & tanning weather

Current Conditions

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Low
UV Index
🌡️
18°C
Temperature
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Cloudy
Conditions
☀️
Peak Tanning Window 12PM • UV 6

Hourly UV Forecast

☀️ Excellent tanning conditions • 11AM–4PM • 25°C • 16 km/h 🌬️
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7AM
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8AM
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11AM
6
12PM
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Low 0–2 Moderate 3–5 High 6–7 Very High 8–10 Extreme 11+

Daily UV Forecast

6
Wed 22
Excellent
8
Thu 23
Excellent
7
Fri 24
Excellent
8
Sat 25
Excellent
7
Sun 26
Excellent
7
Mon 27
Excellent
5
Tue 28
Excellent
4
Wed 29
Good
6
Thu 30
Excellent
6
Fri 31
Excellent

Location & Climate

In Portland, UV rises from 1 in January to 8 in June, with peak tanning months being June, July, August. Expect the strongest sun between late spring and early fall.

North America spans a wide UV range from subtropical Florida to northern Canada. Seasons strongly influence tanning potential — summer months offer the best conditions across most of the continent.

SPF 15-30 is adequate during summer tanning sessions. In winter, UV levels are typically too low to require sunscreen for tanning purposes, though daily SPF is always good skincare practice.

Tanning Tips

Portland has a distinct tanning season from April to October. Winter UV is too low for effective tanning.

Weather data by Apple Weather

Monthly UV Index in Portland

Average daily maximum UV index by month

Jan
1
Feb
1
Mar
3
Apr
5
May
6
Jun
8
Jul
8
Aug
8
Sep
6
Oct
5
Nov
3
Dec
1
Low Moderate High Very High Extreme

Best Months to Tan in Portland

Based on average UV levels, the best months for tanning in Portland are:

April Good May Good June Great July Great August Great September Good October Good

Rating based on average monthly UV index

Related Guides

Tanning in UV 7-8 → How to Tan Quicker → Backyard Tanning Tips → Best Time of Day to Tan →

Tanning Tools & Calculators

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Tanning Time Calculator

Calculate your ideal tanning time based on skin type and UV index

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Sunburn Calculator

Find out how long until you burn based on your skin type and current UV

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Skin Type Quiz

Discover your Fitzpatrick skin type and get personalized tanning advice

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Tanning Routine Creator

Build a personalized tanning plan based on your skin, UV, and experience

Frequently Asked Questions

What is the UV index in Portland right now?
The current UV index in Portland is shown in the live weather section above. UV levels change throughout the day, typically peaking between 11 AM and 2 PM local time.
What is the best month to tan in Portland?
The best months for tanning in Portland are April, May, June, July, August, September, October, when average UV levels reach 5 or higher.
How long should I tan in Portland?
Tanning time depends on your skin type and the current UV index. For a moderate UV of 7, a person with Skin Type III (medium complexion) can safely tan for about 21 minutes per session. Use our Tanning Calculator for personalized recommendations.
Is it safe to tan in UV index 8?
UV index 8 is classified as Very High. Very High — avoid prolonged sun exposure. Short tanning sessions with SPF 50+ recommended.
When is the peak UV time in Portland?
UV levels in Portland typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.

UV Index in Nearby Cities

8
Scarborough
Avg. Peak UV
› 8
Pine Point
Avg. Peak UV
› 8
Old Orchard Beach
Avg. Peak UV
› 8
Kennebunkport
Avg. Peak UV
› 8
Kennebunk
Avg. Peak UV
› 8
Wells
Avg. Peak UV
›

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