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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 Great South 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: 24 10 2026 13:15 UTC / Model: 20261023 12z / info

Saturday 24 October (Today)

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

Sunrise: 07:12 / Sunset: 18:00 Twilight: 06:44 / 18:28

Sunday 25 October (Tomorrow)

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

Sunrise: 07:13 / Sunset: 17:59 Twilight: 06:45 / 18:27

Monday 26 October

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

Sunrise: 07:14 / Sunset: 17:58 Twilight: 06:46 / 18:26

Tuesday 27 October

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

Sunrise: 07:16 / Sunset: 17:56 Twilight: 06:47 / 18:25

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