Koloa, Hawaii, United States UV Index Forecast

Find the UV Index forecast for today, tomorrow and the next 15 days for Koloa, Hawaii, United States, The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated hourly.

Current UV Index
3:54 pm

Moderate4

UV INDEX

Hourly UV Index Forecast for Today
August 31, 2025

0
7 am
0
8 am
1
9 am
2
10 am
3
11 am
9
12 pm
7
1 pm
2
2 pm
3
3 pm
4
4 pm
2
5 pm
  • Low
    1-2
  • Moderate
    3-4-5
  • High
    6-7
  • Very High
    8-9-10
  • Xtreme
    11+

As of 3:54 pm today in Koloa, Hawaii, United States, the UV Index is currently at a Moderate level of 4.

Summary of Hourly UV Index Forecast for Today and Tomorrow in Koloa, Hawaii, United States.

Today

Time Range UV Index Risk
7 am 0
Low
8 am 0
Low
9 am 1
Low
10 am 2
Low
11 am 3
Moderate
12 pm 9
Very High
1 pm 7
High
2 pm 2
Low
3 pm 3
Moderate
4 pm 4
Moderate
5 pm 2
Low

Tomorrow

Time Range UV Index Risk
7 am 0
Low
8 am 1
Low
9 am 3
Moderate
10 am 5
Moderate
11 am 7
High
12 pm 8
Very High
1 pm 7
High
2 pm 4
Moderate
3 pm 2
Low
4 pm 1
Low
5 pm 0
Low

Daily Koloa UV Index Forecast for the next 15 days:

9
31 Aug
8
1 Sep
9
2 Sep
10
3 Sep
10
4 Sep
9
5 Sep
7
6 Sep
10
7 Sep
10
8 Sep
9
9 Sep
7
10 Sep
4
11 Sep
7
12 Sep
9
13 Sep
  • Low
    1-2
  • Moderate
    3-4-5
  • High
    6-7
  • Very High
    8-9-10
  • Xtreme
    11+

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