UV Index Today in Philadelphia, Pennsylvania (PA)

Friday, May 22, 2026 -2:40 PMEDT (GMT-4)

The UV Index in Philadelphia, Pennsylvania (PA) right now is 7.8. This reading was last updated at 2:00 PM EDT, about 40 minutes ago. The UV Index at3:00 PM EDT, in about 19 minutes from now, is expected to be 6.3.

The maximum UV Index today in Philadelphia was 7.8 at 2:00 PM EDT,40 minutes ago. The maximum UV Index tomorrow is expected to be 0.8 at 12:00 PM EDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
7.8
2:00 PM EDT
Very High

Tomorrow

May 23
0.8
12:00 PM EDT
Low

UV Index Today Hourly

May 22

The sun will be strongest in Philadelphia, Pennsylvania (PA) around 2:00 PM EDT today, with a UV Index of 7.8 (Very High risk).

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMEastern Daylight Time (EDT, GMT-4)Now: 2:40 PM00.20.61.32.33.54.96.67.86.34.42.11.10.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

Sun exposure in Philadelphia, Pennsylvania (PA) reaches Low risk levels tomorrow, with a peak UV Index of 0.8 at 12:00 PM EDT.

02468107 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMEastern Daylight Time (EDT, GMT-4)00.10.10.20.40.80.40.30.30.20.20.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

May 21, 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 AM0.3
Low
8:00 AM0.5
Low
9:00 AM1.6
Low
10:00 AM3.3
Moderate
11:00 AM4
Moderate
12:00 PM5.5
High
1:00 PM1.7
Low
2:00 PM2.5
Moderate
3:00 PM1.9
Low
4:00 PM1.7
Low
5:00 PM0.8
Low
6:00 PM0.3
Low
7:00 PM0.2
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 22, 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 AM0.2
Low
8:00 AM0.6
Low
9:00 AM1.3
Low
10:00 AM2.3
Low
11:00 AM3.5
Moderate
12:00 PM4.9
Moderate
1:00 PM6.6
High
2:00 PM7.8
Very High
3:00 PM6.3
High
4:00 PM4.4
Moderate
5:00 PM2.1
Low
6:00 PM1.1
Low
7:00 PM0.3
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 23, 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 AM0.1
Low
9:00 AM0.1
Low
10:00 AM0.2
Low
11:00 AM0.4
Low
12:00 PM0.8
Low
1:00 PM0.4
Low
2:00 PM0.3
Low
3:00 PM0.3
Low
4:00 PM0.2
Low
5:00 PM0.2
Low
6:00 PM0.1
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 24, 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 AM0.1
Low
9:00 AM0.1
Low
10:00 AM0.4
Low
11:00 AM0.4
Low
12:00 PM1.1
Low
1:00 PM1.3
Low
2:00 PM1.2
Low
3:00 PM2
Low
4:00 PM1.4
Low
5:00 PM0.8
Low
6:00 PM0.3
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 25, 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 AM0.1
Low
8:00 AM0.2
Low
9:00 AM0.3
Low
10:00 AM0.2
Low
11:00 AM0.4
Low
12:00 PM0.6
Low
1:00 PM0.8
Low
2:00 PM0.8
Low
3:00 PM1
Low
4:00 PM1.2
Low
5:00 PM0.6
Low
6:00 PM1
Low
7:00 PM0.3
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)