UV Index for Philadelphia, PA

Current Philadelphia UV Index

0 (Low)

Last Updated 4 minutes ago

Hourly Philadelphia UV Index

The hourly Philadelphia, PA UV Index forecast for Saturday, August 2nd, 2025.

5 Day Hourly Philadelphia UV Index Forecast

Last Updated 13 hours ago

The UV index forecast for the next five days in Philadelphia, PA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Philadelphia over the next five days will be 8.4 on Saturday, August 2nd at 1:00 pm.

The UV index forecast for Saturday, August 2nd in Philadelphia, PA is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.2
Low
8am 1
Low
9am 2.4
Low
10am 4.4
Moderate
11am 6.5
High
12pm 8.1
Very High
1pm 8.4
Very High
2pm 8.2
Very High
3pm 6.2
High
4pm 4.2
Moderate
5pm 2
Low
6pm 0.7
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, August 3rd in Philadelphia, PA 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 0.2
Low
8am 0.9
Low
9am 2.2
Low
10am 4
Moderate
11am 6
High
12pm 7.4
High
1pm 8
Very High
2pm 7.5
High
3pm 6
High
4pm 4
Moderate
5pm 2.2
Low
6pm 0.9
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, August 4th in Philadelphia, PA 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 0.2
Low
8am 0.8
Low
9am 2
Low
10am 3.6
Moderate
11am 5.5
Moderate
12pm 6.9
High
1pm 7.6
High
2pm 7.2
High
3pm 5.7
Moderate
4pm 3.8
Moderate
5pm 2.1
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 Tuesday, August 5th in Philadelphia, PA 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 0.2
Low
8am 0.7
Low
View Historical UV Index Data