Solar radiation in Herndon Solar radiation 15 days
In the following list by days you can know the forecast of the predicted solar radiation. To know the data hour by hour, click on the day that interests you. If you have a solar panel system, these data will be useful to predict the energy it will produce.
The unit of measurement for solar radiation is expressed in W/m2 (Watts per square meter).
Solar radiation
Today, April 18
Total: 3664 wh/m2Hours08:0073 w/m2
09:00197 w/m2
10:00316 w/m2
11:00311 w/m2
12:00322 w/m2
13:00351 w/m2
14:00459 w/m2
15:00434 w/m2
16:00428 w/m2
17:00338 w/m2
18:00279 w/m2
19:00149 w/m2
20:007 w/m2
Tomorrow, April 19
Total: 5683 wh/m2Hours08:0048 w/m2
09:00216 w/m2
10:00382 w/m2
11:00581 w/m2
12:00714 w/m2
13:00768 w/m2
14:00762 w/m2
15:00709 w/m2
16:00609 w/m2
17:00461 w/m2
18:00294 w/m2
19:00129 w/m2
20:0010 w/m2
Sunday, April 20
Total: 5852 wh/m2Hours08:0061 w/m2
09:00190 w/m2
10:00329 w/m2
11:00499 w/m2
12:00641 w/m2
13:00748 w/m2
14:00792 w/m2
15:00776 w/m2
16:00693 w/m2
17:00555 w/m2
18:00375 w/m2
19:00178 w/m2
20:0015 w/m2
Monday, April 21
Total: 6779 wh/m2Hours08:00105 w/m2
09:00304 w/m2
10:00499 w/m2
11:00665 w/m2
12:00788 w/m2
13:00858 w/m2
14:00869 w/m2
15:00822 w/m2
16:00719 w/m2
17:00569 w/m2
18:00383 w/m2
19:00182 w/m2
20:0016 w/m2
Tuesday, April 22
Total: 6781 wh/m2Hours08:00109 w/m2
09:00307 w/m2
10:00500 w/m2
11:00665 w/m2
12:00786 w/m2
13:00853 w/m2
14:00866 w/m2
15:00820 w/m2
16:00718 w/m2
17:00570 w/m2
18:00385 w/m2
19:00184 w/m2
20:0018 w/m2
Wednesday, April 23
Total: 6602 wh/m2Hours08:00110 w/m2
09:00304 w/m2
10:00491 w/m2
11:00650 w/m2
12:00768 w/m2
13:00832 w/m2
14:00840 w/m2
15:00795 w/m2
16:00694 w/m2
17:00550 w/m2
18:00371 w/m2
19:00179 w/m2
20:0018 w/m2
Thursday, April 24
Total: 5643 wh/m2Hours08:0084 w/m2
09:00235 w/m2
10:00391 w/m2
11:00532 w/m2
12:00644 w/m2
13:00716 w/m2
14:00733 w/m2
15:00693 w/m2
16:00614 w/m2
17:00487 w/m2
18:00334 w/m2
19:00164 w/m2
20:0016 w/m2
Friday, April 25
Total: 5686 wh/m2Hours08:0085 w/m2
09:00234 w/m2
10:00394 w/m2
11:00535 w/m2
12:00646 w/m2
13:00718 w/m2
14:00735 w/m2
15:00709 w/m2
16:00627 w/m2
17:00494 w/m2
18:00330 w/m2
19:00160 w/m2
20:0019 w/m2
Saturday, April 26
Total: 6429 wh/m2Hours07:001 w/m2
08:00108 w/m2
09:00286 w/m2
10:00464 w/m2
11:00619 w/m2
12:00738 w/m2
13:00809 w/m2
14:00819 w/m2
15:00779 w/m2
16:00683 w/m2
17:00543 w/m2
18:00373 w/m2
19:00184 w/m2
20:0023 w/m2
Sunday, April 27
Total: 6860 wh/m2Hours07:001 w/m2
08:00118 w/m2
09:00310 w/m2
10:00501 w/m2
11:00666 w/m2
12:00790 w/m2
13:00862 w/m2
14:00873 w/m2
15:00825 w/m2
16:00724 w/m2
17:00575 w/m2
18:00394 w/m2
19:00195 w/m2
20:0026 w/m2
Monday, April 28
Total: 6825 wh/m2Hours07:002 w/m2
08:00124 w/m2
09:00314 w/m2
10:00500 w/m2
11:00661 w/m2
12:00781 w/m2
13:00851 w/m2
14:00864 w/m2
15:00817 w/m2
16:00719 w/m2
17:00573 w/m2
18:00394 w/m2
19:00197 w/m2
20:0028 w/m2
Tuesday, April 29
Total: 6731 wh/m2Hours07:002 w/m2
08:00135 w/m2
09:00333 w/m2
10:00516 w/m2
11:00679 w/m2
12:00800 w/m2
13:00869 w/m2
14:00864 w/m2
15:00792 w/m2
16:00656 w/m2
17:00520 w/m2
18:00357 w/m2
19:00179 w/m2
20:0029 w/m2
Wednesday, April 30
Total: 5224 wh/m2Hours07:003 w/m2
08:00139 w/m2
09:00338 w/m2
10:00527 w/m2
11:00676 w/m2
12:00759 w/m2
13:00757 w/m2
14:00661 w/m2
15:00493 w/m2
16:00257 w/m2
17:00257 w/m2
18:00210 w/m2
19:00121 w/m2
20:0026 w/m2
Thursday, May 1
Total: 7143 wh/m2Hours07:004 w/m2
08:00142 w/m2
09:00342 w/m2
10:00534 w/m2
11:00696 w/m2
12:00815 w/m2
13:00883 w/m2
14:00892 w/m2
15:00845 w/m2
16:00742 w/m2
17:00594 w/m2
18:00410 w/m2
19:00210 w/m2
20:0034 w/m2
Friday, May 2
Total: 7179 wh/m2Hours07:005 w/m2
08:00146 w/m2
09:00345 w/m2
10:00537 w/m2
11:00699 w/m2
12:00818 w/m2
13:00885 w/m2
14:00894 w/m2
15:00847 w/m2
16:00745 w/m2
17:00596 w/m2
18:00413 w/m2
19:00213 w/m2
20:0036 w/m2
To carry out the solar radiation forecast, the angle of incidence of solar radiation is taken into account, which depends, among others, on the declination, latitude, inclination and hour angle. The weather forecast is also taken into account, since, for example, on a cloudy day we would only have diffuse radiation, much less than direct radiation.
