Hilo, Hawaii
Hilo, Hawaii UV Index information is provided so you can take the steps to prevent sun damage.
| Clear Sky UV Index Annual Averages | UV INDEX # | EXPOSURE CATEGORY | ||
| YEAR | AVG | US AVG | <2 3-5 6-7 8-10 11+ |
LOW MODERATE HIGH VERY HIGH EXTREME |
| 2012 | 9.4368 | 4.9 | ||
| 2011 | 9.4767 | 4.9 | ||
MonthAverageHighLow
January
6.77
8
5

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
6.81
8
6

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
1/1/2012
6
HIGH
1/2/2012
6
HIGH
1/3/2012
6
HIGH
1/4/2012
6
HIGH
1/5/2012
6
HIGH
1/6/2012
6
HIGH
1/7/2012
6
HIGH
1/8/2012
7
HIGH
1/9/2012
7
HIGH
1/10/2012
7
HIGH
1/11/2012
7
HIGH
1/12/2012
6
HIGH
1/13/2012
6
HIGH
1/14/2012
6
HIGH
1/15/2012
7
HIGH
1/16/2012
6
HIGH
1/17/2012
7
HIGH
1/18/2012
7
HIGH
1/19/2012
8
VERY HIGH
1/20/2012
7
HIGH
1/21/2012
7
HIGH
1/22/2012
7
HIGH
1/23/2012
7
HIGH
1/24/2012
7
HIGH
1/25/2012
7
HIGH
1/26/2012
7
HIGH
1/27/2012
8
VERY HIGH
1/28/2012
7
HIGH
1/29/2012
8
VERY HIGH
1/30/2012
8
VERY HIGH
1/31/2012
8
VERY HIGH
February
7.81
9
6

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
2/1/2012
7
HIGH
2/2/2012
8
VERY HIGH
2/3/2012
8
VERY HIGH
2/4/2012
8
VERY HIGH
2/5/2012
8
VERY HIGH
2/6/2012
8
VERY HIGH
2/8/2012
7
HIGH
2/9/2012
8
VERY HIGH
2/10/2012
8
VERY HIGH
2/11/2012
6
HIGH
2/12/2012
9
VERY HIGH
2/13/2012
9
VERY HIGH
2/14/2012
9
VERY HIGH
2/15/2012
8
VERY HIGH
2/16/2012
7
HIGH
2/17/2012
7
HIGH
2/18/2012
7
HIGH
2/19/2012
7
HIGH
2/20/2012
8
VERY HIGH
2/21/2012
8
VERY HIGH
2/22/2012
8
VERY HIGH
2/23/2012
8
VERY HIGH
2/24/2012
8
VERY HIGH
2/26/2012
8
VERY HIGH
2/27/2012
8
VERY HIGH
2/28/2012
8
VERY HIGH
2/29/2012
8
VERY HIGH
March
9.29
12
6

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
3/1/2012
9
VERY HIGH
3/2/2012
8
VERY HIGH
3/3/2012
7
HIGH
3/4/2012
7
HIGH
3/5/2012
9
VERY HIGH
3/6/2012
9
VERY HIGH
3/7/2012
7
HIGH
3/8/2012
6
HIGH
3/9/2012
8
VERY HIGH
3/10/2012
8
VERY HIGH
3/11/2012
8
VERY HIGH
3/12/2012
8
VERY HIGH
3/13/2012
10
VERY HIGH
3/14/2012
10
VERY HIGH
3/15/2012
10
VERY HIGH
3/16/2012
10
VERY HIGH
3/17/2012
10
VERY HIGH
3/18/2012
10
VERY HIGH
3/19/2012
10
VERY HIGH
3/20/2012
10
VERY HIGH
3/21/2012
10
VERY HIGH
3/22/2012
10
VERY HIGH
3/23/2012
10
VERY HIGH
3/24/2012
10
VERY HIGH
3/25/2012
9
VERY HIGH
3/26/2012
10
VERY HIGH
3/27/2012
10
VERY HIGH
3/28/2012
11
EXTREME
3/29/2012
11
EXTREME
3/30/2012
11
EXTREME
3/31/2012
12
EXTREME
April
10.67
12
9

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
4/1/2012
12
EXTREME
4/2/2012
11
EXTREME
4/3/2012
11
EXTREME
4/4/2012
10
VERY HIGH
4/5/2012
10
VERY HIGH
4/6/2012
10
VERY HIGH
4/7/2012
9
VERY HIGH
4/8/2012
10
VERY HIGH
4/9/2012
10
VERY HIGH
4/10/2012
11
EXTREME
4/11/2012
11
EXTREME
4/12/2012
12
EXTREME
4/13/2012
11
EXTREME
4/14/2012
11
EXTREME
4/15/2012
11
EXTREME
4/16/2012
11
EXTREME
4/17/2012
11
EXTREME
4/18/2012
10
VERY HIGH
4/19/2012
11
EXTREME
4/20/2012
11
EXTREME
4/21/2012
10
VERY HIGH
4/22/2012
10
VERY HIGH
4/23/2012
10
VERY HIGH
4/24/2012
10
VERY HIGH
4/25/2012
11
EXTREME
4/26/2012
11
EXTREME
4/27/2012
11
EXTREME
4/28/2012
11
EXTREME
4/29/2012
11
EXTREME
4/30/2012
11
EXTREME
May
10.97
12
9

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
5/1/2012
11
EXTREME
5/2/2012
10
VERY HIGH
5/3/2012
10
VERY HIGH
5/4/2012
11
EXTREME
5/5/2012
12
EXTREME
5/6/2012
12
EXTREME
5/7/2012
12
EXTREME
5/8/2012
11
EXTREME
5/9/2012
11
EXTREME
5/10/2012
11
EXTREME
5/11/2012
11
EXTREME
5/12/2012
11
EXTREME
5/13/2012
11
EXTREME
5/14/2012
12
EXTREME
5/15/2012
12
EXTREME
5/16/2012
11
EXTREME
5/17/2012
12
EXTREME
5/18/2012
11
EXTREME
5/19/2012
10
VERY HIGH
5/20/2012
9
VERY HIGH
5/21/2012
10
VERY HIGH
5/22/2012
10
VERY HIGH
5/23/2012
11
EXTREME
5/24/2012
12
EXTREME
5/25/2012
11
EXTREME
5/26/2012
11
EXTREME
5/27/2012
11
EXTREME
5/28/2012
9
VERY HIGH
5/29/2012
11
EXTREME
5/30/2012
11
EXTREME
5/31/2012
12
EXTREME
June
11.43
12
9

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
6/1/2012
11
EXTREME
6/2/2012
11
EXTREME
6/3/2012
11
EXTREME
6/4/2012
11
EXTREME
6/5/2012
10
VERY HIGH
6/6/2012
12
EXTREME
6/7/2012
12
EXTREME
6/8/2012
12
EXTREME
6/9/2012
12
EXTREME
6/10/2012
11
EXTREME
6/11/2012
11
EXTREME
6/12/2012
12
EXTREME
6/13/2012
12
EXTREME
6/15/2012
12
EXTREME
6/16/2012
9
VERY HIGH
6/17/2012
9
VERY HIGH
6/18/2012
12
EXTREME
6/19/2012
12
EXTREME
6/20/2012
11
EXTREME
6/21/2012
12
EXTREME
6/22/2012
11
EXTREME
6/23/2012
12
EXTREME
6/24/2012
11
EXTREME
6/25/2012
12
EXTREME
6/26/2012
12
EXTREME
6/27/2012
12
EXTREME
6/28/2012
12
EXTREME
6/29/2012
12
EXTREME
6/30/2012
12
EXTREME
July
11.9
12
11

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
7/1/2012
12
EXTREME
7/2/2012
12
EXTREME
7/3/2012
12
EXTREME
7/4/2012
12
EXTREME
7/5/2012
12
EXTREME
7/6/2012
12
EXTREME
7/7/2012
12
EXTREME
7/8/2012
12
EXTREME
7/9/2012
11
EXTREME
7/10/2012
12
EXTREME
7/11/2012
12
EXTREME
7/12/2012
12
EXTREME
7/13/2012
12
EXTREME
7/14/2012
12
EXTREME
7/15/2012
12
EXTREME
7/16/2012
12
EXTREME
7/17/2012
12
EXTREME
7/18/2012
12
EXTREME
August
11.94
13
11

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
September
10.8
12
9

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
October
9
10
8

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
November
6.47
8
4

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
December
6
7
4

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
6.58
8
4

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
1/1/2011
6
HIGH
1/2/2011
6
HIGH
1/3/2011
6
HIGH
1/4/2011
6
HIGH
1/5/2011
6
HIGH
1/6/2011
5
MODERATE
1/7/2011
5
MODERATE
1/8/2011
6
HIGH
1/9/2011
6
HIGH
1/10/2011
6
HIGH
1/11/2011
6
HIGH
1/12/2011
6
HIGH
1/13/2011
6
HIGH
1/14/2011
7
HIGH
1/15/2011
7
HIGH
1/16/2011
6
HIGH
1/17/2011
4
MODERATE
1/18/2011
7
HIGH
1/19/2011
7
HIGH
1/20/2011
7
HIGH
1/21/2011
7
HIGH
1/22/2011
7
HIGH
1/23/2011
8
VERY HIGH
1/24/2011
7
HIGH
1/25/2011
7
HIGH
1/26/2011
8
VERY HIGH
1/27/2011
8
VERY HIGH
1/28/2011
8
VERY HIGH
1/29/2011
8
VERY HIGH
1/30/2011
7
HIGH
1/31/2011
8
VERY HIGH
February
7.96
9
5

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
2/1/2011
8
VERY HIGH
2/2/2011
8
VERY HIGH
2/3/2011
9
VERY HIGH
2/4/2011
9
VERY HIGH
2/5/2011
9
VERY HIGH
2/6/2011
9
VERY HIGH
2/7/2011
8
VERY HIGH
2/8/2011
8
VERY HIGH
2/9/2011
8
VERY HIGH
2/10/2011
8
VERY HIGH
2/11/2011
8
VERY HIGH
2/12/2011
8
VERY HIGH
2/13/2011
7
HIGH
2/14/2011
9
VERY HIGH
2/15/2011
7
HIGH
2/16/2011
5
MODERATE
2/17/2011
9
VERY HIGH
2/18/2011
8
VERY HIGH
2/19/2011
6
HIGH
2/20/2011
7
HIGH
2/21/2011
8
VERY HIGH
2/22/2011
7
HIGH
2/23/2011
7
HIGH
2/24/2011
8
VERY HIGH
2/25/2011
8
VERY HIGH
2/26/2011
9
VERY HIGH
2/27/2011
9
VERY HIGH
2/28/2011
9
VERY HIGH
March
9.77
11
7

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
3/1/2011
7
HIGH
3/2/2011
8
VERY HIGH
3/3/2011
7
HIGH
3/4/2011
8
VERY HIGH
3/5/2011
10
VERY HIGH
3/6/2011
11
EXTREME
3/7/2011
11
EXTREME
3/8/2011
9
VERY HIGH
3/9/2011
10
VERY HIGH
3/10/2011
10
VERY HIGH
3/11/2011
10
VERY HIGH
3/12/2011
11
EXTREME
3/13/2011
11
EXTREME
3/14/2011
11
EXTREME
3/15/2011
11
EXTREME
3/16/2011
11
EXTREME
3/17/2011
9
VERY HIGH
3/18/2011
10
VERY HIGH
3/19/2011
9
VERY HIGH
3/20/2011
9
VERY HIGH
3/21/2011
10
VERY HIGH
3/22/2011
10
VERY HIGH
3/23/2011
10
VERY HIGH
3/24/2011
10
VERY HIGH
3/25/2011
9
VERY HIGH
3/26/2011
10
VERY HIGH
3/27/2011
9
VERY HIGH
3/28/2011
10
VERY HIGH
3/29/2011
10
VERY HIGH
3/30/2011
11
EXTREME
3/31/2011
11
EXTREME
April
11.2
13
7

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
4/1/2011
11
EXTREME
4/2/2011
11
EXTREME
4/3/2011
11
EXTREME
4/4/2011
10
VERY HIGH
4/5/2011
7
HIGH
4/6/2011
8
VERY HIGH
4/7/2011
11
EXTREME
4/8/2011
11
EXTREME
4/9/2011
11
EXTREME
4/10/2011
11
EXTREME
4/11/2011
12
EXTREME
4/12/2011
12
EXTREME
4/13/2011
12
EXTREME
4/14/2011
12
EXTREME
4/15/2011
12
EXTREME
4/16/2011
13
EXTREME
4/17/2011
12
EXTREME
4/18/2011
12
EXTREME
4/19/2011
11
EXTREME
4/20/2011
12
EXTREME
4/21/2011
12
EXTREME
4/22/2011
12
EXTREME
4/23/2011
12
EXTREME
4/24/2011
12
EXTREME
4/25/2011
12
EXTREME
4/26/2011
12
EXTREME
4/27/2011
11
EXTREME
4/28/2011
11
EXTREME
4/29/2011
11
EXTREME
4/30/2011
9
VERY HIGH
May
11
12
7

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
5/1/2011
11
EXTREME
5/2/2011
11
EXTREME
5/3/2011
10
VERY HIGH
5/4/2011
10
VERY HIGH
5/5/2011
10
VERY HIGH
5/6/2011
9
VERY HIGH
5/7/2011
7
HIGH
5/8/2011
9
VERY HIGH
5/9/2011
11
EXTREME
5/10/2011
12
EXTREME
5/11/2011
10
VERY HIGH
5/12/2011
11
EXTREME
5/13/2011
12
EXTREME
5/14/2011
11
EXTREME
5/15/2011
12
EXTREME
5/16/2011
12
EXTREME
5/17/2011
12
EXTREME
5/18/2011
12
EXTREME
5/19/2011
12
EXTREME
5/20/2011
11
EXTREME
5/21/2011
12
EXTREME
5/22/2011
12
EXTREME
5/23/2011
12
EXTREME
5/24/2011
11
EXTREME
5/25/2011
11
EXTREME
5/26/2011
12
EXTREME
5/27/2011
12
EXTREME
5/28/2011
11
EXTREME
5/29/2011
11
EXTREME
5/30/2011
11
EXTREME
5/31/2011
11
EXTREME
June
11.4
13
8

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
6/1/2011
11
EXTREME
6/2/2011
12
EXTREME
6/3/2011
9
VERY HIGH
6/4/2011
12
EXTREME
6/5/2011
12
EXTREME
6/6/2011
11
EXTREME
6/7/2011
11
EXTREME
6/8/2011
11
EXTREME
6/9/2011
11
EXTREME
6/10/2011
11
EXTREME
6/11/2011
11
EXTREME
6/12/2011
8
VERY HIGH
6/13/2011
12
EXTREME
6/14/2011
11
EXTREME
6/15/2011
11
EXTREME
6/16/2011
12
EXTREME
6/17/2011
12
EXTREME
6/18/2011
11
EXTREME
6/19/2011
12
EXTREME
6/20/2011
12
EXTREME
6/21/2011
10
VERY HIGH
6/22/2011
12
EXTREME
6/23/2011
12
EXTREME
6/24/2011
12
EXTREME
6/25/2011
12
EXTREME
6/26/2011
11
EXTREME
6/27/2011
12
EXTREME
6/28/2011
12
EXTREME
6/29/2011
13
EXTREME
6/30/2011
13
EXTREME
July
12.52
13
12

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
7/1/2011
13
EXTREME
7/2/2011
13
EXTREME
7/3/2011
13
EXTREME
7/4/2011
13
EXTREME
7/5/2011
12
EXTREME
7/6/2011
12
EXTREME
7/7/2011
12
EXTREME
7/8/2011
12
EXTREME
7/9/2011
13
EXTREME
7/10/2011
13
EXTREME
7/11/2011
13
EXTREME
7/12/2011
13
EXTREME
7/13/2011
13
EXTREME
7/14/2011
13
EXTREME
7/15/2011
13
EXTREME
7/16/2011
13
EXTREME
7/17/2011
13
EXTREME
7/18/2011
13
EXTREME
7/19/2011
12
EXTREME
7/20/2011
12
EXTREME
7/21/2011
13
EXTREME
7/22/2011
12
EXTREME
7/23/2011
12
EXTREME
7/24/2011
13
EXTREME
7/25/2011
12
EXTREME
7/26/2011
12
EXTREME
7/27/2011
12
EXTREME
7/28/2011
12
EXTREME
7/29/2011
12
EXTREME
7/30/2011
12
EXTREME
7/31/2011
12
EXTREME
August
11.9
13
11

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
8/1/2011
12
EXTREME
8/2/2011
12
EXTREME
8/3/2011
13
EXTREME
8/4/2011
13
EXTREME
8/5/2011
12
EXTREME
8/6/2011
12
EXTREME
8/7/2011
12
EXTREME
8/8/2011
12
EXTREME
8/9/2011
12
EXTREME
8/10/2011
12
EXTREME
8/11/2011
12
EXTREME
8/12/2011
12
EXTREME
8/13/2011
12
EXTREME
8/14/2011
12
EXTREME
8/15/2011
12
EXTREME
8/16/2011
12
EXTREME
8/17/2011
12
EXTREME
8/18/2011
12
EXTREME
8/19/2011
12
EXTREME
8/20/2011
12
EXTREME
8/21/2011
12
EXTREME
8/22/2011
11
EXTREME
8/23/2011
11
EXTREME
8/24/2011
12
EXTREME
8/25/2011
12
EXTREME
8/26/2011
12
EXTREME
8/27/2011
12
EXTREME
8/28/2011
11
EXTREME
8/29/2011
11
EXTREME
8/30/2011
12
EXTREME
8/31/2011
11
EXTREME
September
10.93
12
10

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
9/1/2011
12
EXTREME
9/2/2011
12
EXTREME
9/3/2011
12
EXTREME
9/4/2011
11
EXTREME
9/5/2011
11
EXTREME
9/6/2011
11
EXTREME
9/7/2011
11
EXTREME
9/8/2011
12
EXTREME
9/9/2011
12
EXTREME
9/10/2011
12
EXTREME
9/11/2011
11
EXTREME
9/12/2011
11
EXTREME
9/13/2011
11
EXTREME
9/14/2011
11
EXTREME
9/15/2011
11
EXTREME
9/16/2011
11
EXTREME
9/17/2011
11
EXTREME
9/18/2011
11
EXTREME
9/19/2011
11
EXTREME
9/20/2011
11
EXTREME
9/21/2011
11
EXTREME
9/22/2011
11
EXTREME
9/23/2011
10
VERY HIGH
9/24/2011
10
VERY HIGH
9/25/2011
10
VERY HIGH
9/26/2011
10
VERY HIGH
9/27/2011
10
VERY HIGH
9/28/2011
10
VERY HIGH
9/29/2011
10
VERY HIGH
9/30/2011
10
VERY HIGH
October
8.65
10
6

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
10/1/2011
10
VERY HIGH
10/2/2011
10
VERY HIGH
10/3/2011
10
VERY HIGH
10/4/2011
10
VERY HIGH
10/5/2011
10
VERY HIGH
10/6/2011
10
VERY HIGH
10/7/2011
9
VERY HIGH
10/8/2011
10
VERY HIGH
10/9/2011
9
VERY HIGH
10/10/2011
9
VERY HIGH
10/11/2011
9
VERY HIGH
10/12/2011
9
VERY HIGH
10/13/2011
9
VERY HIGH
10/14/2011
8
VERY HIGH
10/15/2011
7
HIGH
10/16/2011
9
VERY HIGH
10/17/2011
9
VERY HIGH
10/18/2011
9
VERY HIGH
10/19/2011
9
VERY HIGH
10/20/2011
9
VERY HIGH
10/21/2011
9
VERY HIGH
10/22/2011
9
VERY HIGH
10/23/2011
8
VERY HIGH
10/24/2011
8
VERY HIGH
10/25/2011
7
HIGH
10/26/2011
8
VERY HIGH
10/27/2011
6
HIGH
10/28/2011
7
HIGH
10/29/2011
8
VERY HIGH
10/30/2011
7
HIGH
10/31/2011
7
HIGH
November
6.13
7
5

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
11/1/2011
7
HIGH
11/2/2011
7
HIGH
11/3/2011
7
HIGH
11/4/2011
7
HIGH
11/5/2011
7
HIGH
11/6/2011
7
HIGH
11/7/2011
7
HIGH
11/8/2011
6
HIGH
11/9/2011
5
MODERATE
11/10/2011
7
HIGH
11/11/2011
7
HIGH
11/12/2011
7
HIGH
11/13/2011
6
HIGH
11/14/2011
6
HIGH
11/15/2011
5
MODERATE
11/16/2011
5
MODERATE
11/17/2011
6
HIGH
11/18/2011
6
HIGH
11/19/2011
6
HIGH
11/20/2011
5
MODERATE
11/21/2011
6
HIGH
11/22/2011
6
HIGH
11/23/2011
5
MODERATE
11/24/2011
6
HIGH
11/25/2011
5
MODERATE
11/26/2011
6
HIGH
11/27/2011
6
HIGH
11/28/2011
6
HIGH
11/29/2011
6
HIGH
11/30/2011
6
HIGH
December
5.58
6
5

Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
12/1/2011
6
HIGH
12/2/2011
6
HIGH
12/3/2011
6
HIGH
12/4/2011
5
MODERATE
12/5/2011
5
MODERATE
12/6/2011
6
HIGH
12/7/2011
6
HIGH
12/8/2011
5
MODERATE
12/9/2011
5
MODERATE
12/10/2011
5
MODERATE
12/11/2011
5
MODERATE
12/12/2011
5
MODERATE
12/13/2011
5
MODERATE
12/14/2011
5
MODERATE
12/15/2011
5
MODERATE
12/16/2011
5
MODERATE
12/17/2011
5
MODERATE
12/18/2011
6
HIGH
12/19/2011
6
HIGH
12/20/2011
5
MODERATE
12/21/2011
6
HIGH
12/22/2011
6
HIGH
12/23/2011
6
HIGH
12/24/2011
6
HIGH
12/25/2011
6
HIGH
12/26/2011
6
HIGH
12/27/2011
6
HIGH
12/28/2011
6
HIGH
12/29/2011
6
HIGH
12/30/2011
6
HIGH
12/31/2011
6
HIGH
