UV Index for Portland, CO

Current Portland UV Index

0.6 (Low)

Last Updated 56 minutes ago

Hourly Portland UV Index

The hourly Portland, CO UV Index forecast for Friday, August 29th, 2025.

5 Day Hourly Portland UV Index Forecast

Last Updated 22 hours ago

The UV index forecast for the next five days in Portland, CO has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Portland over the next five days will be 10.2 on Saturday, August 30th at 1:00 pm.

The UV index forecast for Friday, August 29th in Portland, CO is below.

Time UV Index Risk
11am 1.6
Low
12pm 8.7
Very High
1pm 8
Very High
2pm 9.6
Very High
3pm 3
Moderate
4pm 3.1
Moderate
5pm 1.3
Low
6pm 1
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, August 30th in Portland, CO is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.6
Low
9am 2
Low
10am 4.3
Moderate
11am 7
High
12pm 9.2
Very High
1pm 10.2
Very High
2pm 9.8
Very High
3pm 7.8
High
4pm 5.2
Moderate
5pm 2.8
Low
6pm 1
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, August 31st in Portland, CO is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.6
Low
9am 1.9
Low
10am 4.2
Moderate
11am 6.8
High
12pm 9
Very High
1pm 10
Very High
2pm 8.4
Very High
3pm 4.8
Moderate
4pm 2.5
Low
5pm 2.3
Low
6pm 0.8
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, September 1st in Portland, CO is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low