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Notice 21-10-2026. Over the coming 3 weeks we will be migrating to a newer version of Bigsalty. Whilst this happens we have removed login / user capabilities and some current weather functionality.

UV Index Forecast for Birsay Bay

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: 04 11 2026 13:06 UTC / Model: 20261103 12z / info

Thursday 5 November (Today)

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

Sunrise: 07:39 / Sunset: 16:14 Twilight: 06:55 / 16:58

Friday 6 November (Tomorrow)

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

Sunrise: 07:42 / Sunset: 16:11 Twilight: 06:57 / 16:56

Saturday 7 November

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

Sunrise: 07:44 / Sunset: 16:09 Twilight: 06:59 / 16:54

Sunday 8 November

07am
0
08am
0
09am
0
10am
1

Sunrise: 07:46 / Sunset: 16:07 Twilight: 07:01 / 16:52

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