1.7 (Low)
Last Updated 15 minutes ago
The hourly London Britain, PA UV Index forecast for Thursday, September 18th, 2025.
Last Updated 20 hours ago
The UV index forecast for the next five days in London Britain, PA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in London Britain over the next five days will be 6.5 on Thursday, September 18th at 1:00 pm.
The UV index forecast for Thursday, September 18th in London Britain, PA is below.
Time | UV Index | Risk |
---|---|---|
11am | 2.3 |
Low |
12pm | 4.4 |
Moderate |
1pm | 6.5 |
High |
2pm | 5.9 |
Moderate |
3pm | 2.8 |
Low |
4pm | 1.8 |
Low |
5pm | 0.6 |
Low |
6pm | 0.3 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Friday, September 19th in London Britain, 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 |
Low |
8am | 0.3 |
Low |
9am | 1.1 |
Low |
10am | 2.5 |
Low |
11am | 4.2 |
Moderate |
12pm | 5.7 |
Moderate |
1pm | 6.3 |
High |
2pm | 5.8 |
Moderate |
3pm | 4.6 |
Moderate |
4pm | 2.8 |
Low |
5pm | 1.3 |
Low |
6pm | 0.4 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Saturday, September 20th in London Britain, 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 |
Low |
8am | 0.3 |
Low |
9am | 1.1 |
Low |
10am | 2.6 |
Low |
11am | 4.3 |
Moderate |
12pm | 5.8 |
Moderate |
1pm | 6.4 |
High |
2pm | 5.9 |
Moderate |
3pm | 4.6 |
Moderate |
4pm | 2.8 |
Low |
5pm | 1.3 |
Low |
6pm | 0.4 |
Low |
7pm | 0 |
Low |
8pm | 0 |
Low |
9pm | 0 |
Low |
10pm | 0 |
Low |
11pm | 0 |
Low |
The UV index forecast for Sunday, September 21st in London Britain, 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 |
Low |
8am | 0.3 |
Low |