UV Index Today in Portland, Oregon (OR)

Saturday, August 29, 2026 -11:06 AM PDT (GMT-7)

The UV Index in Portland, Oregon (OR) right now is 3.6. This reading was last updated at 11:00 AM PDT, about 6 minutes ago. The UV Index at12:00 PM PDT, in about 53 minutes from now, is expected to be 4.7.

The maximum UV Index today in Portland is expected to be 4.7 at 12:00 PM PDT,53 minutes from now. The maximum UV Index tomorrow is expected to be 6 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 29
4.7
12:00 PM PDT
Moderate

Tomorrow

August 30
6
1:00 PM PDT
High

UV Index Today Hourly

August 29

Weather models predict UV Index 4.7 for Portland, Oregon (OR) today, peaking near 12:00 PM PDT - Moderate risk level.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)Now: 11:06 AM00.21.22.53.64.74.43.52.41.70.90.40.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 30

The sun will be strongest in Portland, Oregon (OR) around 1:00 PM PDT tomorrow, with a UV Index of 6 (High risk).

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)00.31.12.13.75.265.94.83.31.80.70.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

August 28, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.4
Low
9:00 AM1.3
Low
10:00 AM2.6
Moderate
11:00 AM4.3
Moderate
12:00 PM5.6
High
1:00 PM6.3
High
2:00 PM6
High
3:00 PM4.8
Moderate
4:00 PM3.3
Moderate
5:00 PM1.8
Low
6:00 PM0.7
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 29, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.2
Low
9:00 AM1.2
Low
10:00 AM2.5
Moderate
11:00 AM3.6
Moderate
12:00 PM4.7
Moderate
1:00 PM4.4
Moderate
2:00 PM3.5
Moderate
3:00 PM2.4
Low
4:00 PM1.7
Low
5:00 PM0.9
Low
6:00 PM0.4
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 30, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.3
Low
9:00 AM1.1
Low
10:00 AM2.1
Low
11:00 AM3.7
Moderate
12:00 PM5.2
Moderate
1:00 PM6
High
2:00 PM5.9
High
3:00 PM4.8
Moderate
4:00 PM3.3
Moderate
5:00 PM1.8
Low
6:00 PM0.7
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 31, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.4
Low
9:00 AM1.3
Low
10:00 AM2.6
Moderate
11:00 AM4.1
Moderate
12:00 PM5.2
Moderate
1:00 PM5.8
High
2:00 PM5.4
Moderate
3:00 PM4.3
Moderate
4:00 PM2.8
Moderate
5:00 PM1.5
Low
6:00 PM0.7
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

September 1, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0
Low
8:00 AM0.4
Low
9:00 AM1.2
Low
10:00 AM2.4
Low
11:00 AM3.8
Moderate
12:00 PM5
Moderate
1:00 PM5.6
High
2:00 PM5.4
Moderate
3:00 PM4.4
Moderate
4:00 PM2.7
Moderate
5:00 PM1.4
Low
6:00 PM0.5
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

Maximum UV Index Today
Data Source: National Oceanic and Atmospheric Administration (NOAA)