Todays solar UV index of 5.4 surpassed the yearly high of 4.9 set on 22/05/2026 by 0.5
Compare of my own forecasts (WXSIM) to the actual data
Actual data = ACT
My own Forecast = SIL
| Updated: 17-06-2026 at 06:00 CEST |
| ± 2.0° F |
High |
Low |
High |
Low |
High |
Low |
High |
Low |
High |
Low |
| 17-06-2026 |
|
21 |
|
13 |
|
22 |
|
10 |
|
27 |
|
14 |
|
26 |
|
11 |
|
21 |
|
11 |
| 16-06-2026 |
15.6 |
22 |
10.5 |
10 |
|
22 |
|
12 |
|
23 |
|
13 |
|
27 |
|
14 |
|
26 |
|
12 |
| 15-06-2026 |
19.7 |
21 |
11.5 |
9 |
15.6 |
19 |
10.5 |
8 |
|
22 |
|
12 |
|
24 |
|
12 |
|
27 |
|
16 |
| 14-06-2026 |
18.2 |
9 |
10.2 |
18 |
19.7 |
10 |
11.5 |
19 |
15.6 |
7 |
10.5 |
17 |
|
8 |
|
17 |
|
12 |
|
21 |
| 12-06-2026 |
9.6 |
17 |
15.2 |
10 |
18.2 |
14 |
10.2 |
9 |
19.7 |
16 |
11.5 |
11 |
15.6 |
16 |
10.5 |
7 |
|
17 |
|
8 |
| 11-06-2026 |
17.7 |
18 |
5.0 |
9 |
9.6 |
15 |
15.2 |
|
18.2 |
8 |
10.2 |
|
19.7 |
9 |
11.5 |
17 |
15.6 |
9 |
10.5 |
20 |
| 10-06-2026 |
16.6 |
9 |
8.5 |
17 |
17.7 |
8 |
5.0 |
14 |
9.6 |
7 |
15.2 |
18 |
18.2 |
11 |
10.2 |
17 |
19.7 |
8 |
11.5 |
15 |
| 09-06-2026 |
9.9 |
18 |
16.6 |
10 |
16.6 |
18 |
8.5 |
7 |
17.7 |
16 |
5.0 |
7 |
9.6 |
17 |
15.2 |
10 |
18.2 |
19 |
10.2 |
8 |
| 08-06-2026 |
17.7 |
19 |
0.0 |
13 |
9.9 |
18 |
16.6 |
10 |
16.6 |
17 |
8.5 |
10 |
17.7 |
15 |
5.0 |
10 |
9.6 |
17 |
15.2 |
11 |
| 07-06-2026 |
18.2 |
19 |
13.1 |
11 |
17.7 |
17 |
0.0 |
12 |
9.9 |
17 |
16.6 |
10 |
16.6 |
18 |
8.5 |
8 |
17.7 |
15 |
5.0 |
8 |
| 06-06-2026 |
20.1 |
21 |
7.7 |
12 |
18.2 |
17 |
13.1 |
10 |
17.7 |
18 |
0.0 |
11 |
9.9 |
17 |
16.6 |
9 |
16.6 |
16 |
8.5 |
10 |
| 05-06-2026 |
18.8 |
19 |
10.3 |
9 |
20.1 |
20 |
7.7 |
12 |
18.2 |
19 |
13.1 |
9 |
17.7 |
18 |
0.0 |
12 |
9.9 |
15 |
16.6 |
9 |
| 04-06-2026 |
21.5 |
19 |
12.8 |
13 |
18.8 |
18 |
10.3 |
9 |
20.1 |
16 |
7.7 |
11 |
18.2 |
16 |
13.1 |
9 |
17.7 |
20 |
0.0 |
12 |
| 03-06-2026 |
21.5 |
20 |
13.7 |
14 |
21.5 |
17 |
12.8 |
12 |
18.8 |
16 |
10.3 |
8 |
20.1 |
16 |
7.7 |
12 |
18.2 |
17 |
13.1 |
10 |
| 02-06-2026 |
23.8 |
21 |
14.2 |
16 |
21.5 |
18 |
13.7 |
13 |
21.5 |
17 |
12.8 |
13 |
18.8 |
18 |
10.3 |
12 |
20.1 |
18 |
7.7 |
13 |
| 01-06-2026 |
20.8 |
20 |
9.9 |
10 |
23.8 |
18 |
14.2 |
11 |
21.5 |
19 |
13.7 |
12 |
21.5 |
17 |
12.8 |
11 |
18.8 |
15 |
10.3 |
10 |
| 31-05-2026 |
14.7 |
22 |
11.6 |
10 |
20.8 |
20 |
9.9 |
11 |
23.8 |
19 |
14.2 |
13 |
21.5 |
16 |
13.7 |
14 |
21.5 |
17 |
12.8 |
13 |
| 30-05-2026 |
17.6 |
22 |
11.7 |
12 |
14.7 |
23 |
11.6 |
11 |
20.8 |
20 |
9.9 |
12 |
23.8 |
18 |
14.2 |
15 |
21.5 |
18 |
13.7 |
13 |
| 29-05-2026 |
25.7 |
25 |
6.1 |
9 |
17.6 |
20 |
11.7 |
11 |
14.7 |
21 |
11.6 |
12 |
20.8 |
20 |
9.9 |
14 |
23.8 |
17 |
14.2 |
13 |
| 28-05-2026 |
21.9 |
23 |
7.2 |
8 |
25.7 |
25 |
6.1 |
9 |
17.6 |
18 |
11.7 |
10 |
14.7 |
19 |
11.6 |
11 |
20.8 |
16 |
9.9 |
9 |
| 27-05-2026 |
17.3 |
22 |
8.2 |
8 |
21.9 |
23 |
7.2 |
9 |
25.7 |
25 |
6.1 |
12 |
17.6 |
24 |
11.7 |
11 |
14.7 |
22 |
11.6 |
9 |
| 26-05-2026 |
23.7 |
27 |
10.2 |
7 |
17.3 |
18 |
8.2 |
7 |
21.9 |
22 |
7.2 |
7 |
25.7 |
24 |
6.1 |
10 |
17.6 |
23 |
11.7 |
10 |
| 25-05-2026 |
23.6 |
27 |
10.9 |
10 |
23.7 |
23 |
10.2 |
8 |
17.3 |
20 |
8.2 |
7 |
21.9 |
21 |
7.2 |
7 |
25.7 |
21 |
6.1 |
11 |
| 24-05-2026 |
20.7 |
24 |
9.6 |
10 |
23.6 |
26 |
10.9 |
8 |
23.7 |
20 |
10.2 |
6 |
17.3 |
21 |
8.2 |
7 |
21.9 |
23 |
7.2 |
7 |
| 23-05-2026 |
22.9 |
24 |
10.9 |
10 |
20.7 |
21 |
9.6 |
8 |
23.6 |
25 |
10.9 |
10 |
23.7 |
22 |
10.2 |
6 |
17.3 |
20 |
8.2 |
7 |
| 22-05-2026 |
21.9 |
22 |
10.4 |
12 |
22.9 |
24 |
10.9 |
9 |
20.7 |
20 |
9.6 |
7 |
23.6 |
25 |
10.9 |
10 |
23.7 |
23 |
10.2 |
6 |
| 21-05-2026 |
18.4 |
19 |
10.8 |
8 |
21.9 |
22 |
10.4 |
9 |
22.9 |
22 |
10.9 |
8 |
20.7 |
20 |
9.6 |
6 |
23.6 |
24 |
10.9 |
9 |
| 20-05-2026 |
15.0 |
17 |
10.4 |
11 |
18.4 |
19 |
10.8 |
10 |
21.9 |
22 |
10.4 |
9 |
22.9 |
22 |
10.9 |
9 |
20.7 |
23 |
9.6 |
9 |
| 19-05-2026 |
16.8 |
17 |
9.7 |
10 |
15.0 |
16 |
10.4 |
7 |
18.4 |
18 |
10.8 |
8 |
21.9 |
20 |
10.4 |
8 |
22.9 |
21 |
10.9 |
10 |
| 18-05-2026 |
18.9 |
18 |
8.6 |
10 |
16.8 |
18 |
9.7 |
11 |
15.0 |
14 |
10.4 |
9 |
18.4 |
18 |
10.8 |
9 |
21.9 |
20 |
10.4 |
10 |
| 17-05-2026 |
14.4 |
16 |
6.4 |
9 |
18.9 |
17 |
8.6 |
9 |
16.8 |
14 |
9.7 |
9 |
15.0 |
16 |
10.4 |
10 |
18.4 |
18 |
10.8 |
9 |
| # Succ |
|
17 |
|
17 |
|
17 |
|
16 |
|
14 |
|
14 |
|
14 |
|
13 |
|
9 |
|
14 |
| % Succ |
|
56.7 |
|
56.7 |
|
58.6 |
|
55.2 |
|
50.0 |
|
50.0 |
|
51.9 |
|
48.1 |
|
34.6 |
|
53.8 |
| Ave Error |
|
2.9 |
|
2.6 |
|
2.8 |
|
3.2 |
|
2.7 |
|
2.9 |
|
3.2 |
|
3.1 |
|
3.6 |
|
2.9 |
| Net Error |
|
1.1 |
|
0.8 |
|
-0.2 |
|
-0.4 |
|
-1.3 |
|
-0.4 |
|
-0.7 |
|
0.1 |
|
-0.9 |
|
0.2 |
| Std Dev |
|
2.7 |
|
3.0 |
|
3.0 |
|
3.6 |
|
2.7 |
|
2.9 |
|
2.9 |
|
2.9 |
|
3.0 |
|
3.1 |
|
|
|
