Solar radiation in Jan Smuts 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, July 7
Total: 4049 wh/m2Hours07:001 w/m2
08:00145 w/m2
09:00336 w/m2
10:00493 w/m2
11:00598 w/m2
12:00643 w/m2
13:00624 w/m2
14:00543 w/m2
15:00405 w/m2
16:00225 w/m2
17:0036 w/m2
Tomorrow, July 8
Total: 4062 wh/m2Hours07:001 w/m2
08:00145 w/m2
09:00337 w/m2
10:00494 w/m2
11:00600 w/m2
12:00645 w/m2
13:00626 w/m2
14:00544 w/m2
15:00407 w/m2
16:00226 w/m2
17:0037 w/m2
Tuesday, July 9
Total: 4076 wh/m2Hours07:001 w/m2
08:00146 w/m2
09:00338 w/m2
10:00495 w/m2
11:00601 w/m2
12:00646 w/m2
13:00628 w/m2
14:00546 w/m2
15:00409 w/m2
16:00228 w/m2
17:0038 w/m2
Wednesday, July 10
Total: 4092 wh/m2Hours07:001 w/m2
08:00147 w/m2
09:00339 w/m2
10:00497 w/m2
11:00603 w/m2
12:00648 w/m2
13:00629 w/m2
14:00548 w/m2
15:00411 w/m2
16:00230 w/m2
17:0039 w/m2
Thursday, July 11
Total: 4107 wh/m2Hours07:001 w/m2
08:00147 w/m2
09:00340 w/m2
10:00498 w/m2
11:00604 w/m2
12:00650 w/m2
13:00631 w/m2
14:00550 w/m2
15:00413 w/m2
16:00232 w/m2
17:0041 w/m2
Friday, July 12
Total: 4124 wh/m2Hours07:001 w/m2
08:00148 w/m2
09:00341 w/m2
10:00500 w/m2
11:00606 w/m2
12:00652 w/m2
13:00633 w/m2
14:00552 w/m2
15:00415 w/m2
16:00234 w/m2
17:0042 w/m2
Saturday, July 13
Total: 4143 wh/m2Hours07:001 w/m2
08:00149 w/m2
09:00343 w/m2
10:00501 w/m2
11:00608 w/m2
12:00654 w/m2
13:00636 w/m2
14:00555 w/m2
15:00417 w/m2
16:00236 w/m2
17:0043 w/m2
Sunday, July 14
Total: 4160 wh/m2Hours07:001 w/m2
08:00150 w/m2
09:00344 w/m2
10:00503 w/m2
11:00610 w/m2
12:00656 w/m2
13:00638 w/m2
14:00557 w/m2
15:00419 w/m2
16:00238 w/m2
17:0044 w/m2
Monday, July 15
Total: 4181 wh/m2Hours07:001 w/m2
08:00152 w/m2
09:00346 w/m2
10:00505 w/m2
11:00612 w/m2
12:00658 w/m2
13:00640 w/m2
14:00559 w/m2
15:00422 w/m2
16:00240 w/m2
17:0046 w/m2
Tuesday, July 16
Total: 4202 wh/m2Hours07:001 w/m2
08:00153 w/m2
09:00348 w/m2
10:00507 w/m2
11:00614 w/m2
12:00661 w/m2
13:00643 w/m2
14:00562 w/m2
15:00424 w/m2
16:00242 w/m2
17:0047 w/m2
Wednesday, July 17
Total: 4227 wh/m2Hours07:001 w/m2
08:00155 w/m2
09:00350 w/m2
10:00509 w/m2
11:00617 w/m2
12:00664 w/m2
13:00646 w/m2
14:00565 w/m2
15:00427 w/m2
16:00244 w/m2
17:0049 w/m2
Thursday, July 18
Total: 4249 wh/m2Hours07:001 w/m2
08:00156 w/m2
09:00352 w/m2
10:00512 w/m2
11:00620 w/m2
12:00666 w/m2
13:00649 w/m2
14:00567 w/m2
15:00429 w/m2
16:00247 w/m2
17:0050 w/m2
Friday, July 19
Total: 4276 wh/m2Hours07:002 w/m2
08:00158 w/m2
09:00354 w/m2
10:00515 w/m2
11:00623 w/m2
12:00669 w/m2
13:00652 w/m2
14:00570 w/m2
15:00432 w/m2
16:00249 w/m2
17:0052 w/m2
Saturday, July 20
Total: 4301 wh/m2Hours07:002 w/m2
08:00160 w/m2
09:00356 w/m2
10:00517 w/m2
11:00625 w/m2
12:00672 w/m2
13:00655 w/m2
14:00573 w/m2
15:00435 w/m2
16:00252 w/m2
17:0054 w/m2
Sunday, July 21
Total: 2969 wh/m2Hours07:001 w/m2
08:0049 w/m2
09:00108 w/m2
10:00156 w/m2
11:00173 w/m2
12:00525 w/m2
13:00634 w/m2
14:00576 w/m2
15:00438 w/m2
16:00254 w/m2
17:0055 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.