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UV Index Forecast for Harthill Reservoir

UV index is used to describe the strength of the sun's UV radiation. As a benchmark, 7 may occur on exceptional days and 8 is rare in the UK.

Updated: 19 09 2026 13:06 UTC / Model: 20260918 12z / info

Sunday 20 September (Today)

06am
0
07am
0
08am
0
09am
1
10am
2
11am
3
12pm
4
Exposure level
13pm
5
14pm
5
15pm
4
16pm
2
17pm
1

Sunrise: 06:45 / Sunset: 19:11 Twilight: 06:11 / 19:45

Monday 21 September (Tomorrow)

06am
0
07am
0
08am
0
09am
1
10am
2
11am
3
12pm
4
Exposure level
13pm
5
14pm
5
15pm
3
16pm
2
17pm
1

Sunrise: 06:47 / Sunset: 19:08 Twilight: 06:12 / 19:43

Tuesday 22 September

06am
0
07am
0
08am
0
09am
1
10am
2
11am
3
12pm
4
Exposure level
13pm
5
14pm
4
15pm
3
16pm
2
17pm
1

Sunrise: 06:49 / Sunset: 19:06 Twilight: 06:14 / 19:40

Wednesday 23 September

06am
0
07am
0
08am
0
09am
1
10am
2
11am
3

Sunrise: 06:51 / Sunset: 19:03 Twilight: 06:16 / 19:38

UV Index key
1-2
3-5
6-7
8-10
11