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UV Index Forecast for Portland Harbour

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: 14 08 2026 13:06 UTC / Model: 20260813 12z / info

Saturday 15 August (Today)

06am
0
07am
0
08am
1
09am
2
10am
4
11am
5
12pm
7
Exposure level
13pm
7
14pm
7
15pm
6
16pm
4
17pm
2

Sunrise: 05:56 / Sunset: 20:32 Twilight: 05:19 / 21:08

Sunday 16 August (Tomorrow)

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

Sunrise: 05:58 / Sunset: 20:30 Twilight: 05:21 / 21:06

Monday 17 August

06am
0
07am
0
08am
1
09am
2
10am
3
11am
5
12pm
6
Exposure level
13pm
7
14pm
7
15pm
6
16pm
4
17pm
2

Sunrise: 05:59 / Sunset: 20:28 Twilight: 05:23 / 21:04

Tuesday 18 August

06am
0
07am
0
08am
1
09am
2
10am
4
11am
5

Sunrise: 06:01 / Sunset: 20:26 Twilight: 05:24 / 21:02

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