Solar radiation in Port St Johns 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 2
Total: 3339 wh/m2Hours07:0031 w/m2
08:00147 w/m2
09:00341 w/m2
10:00467 w/m2
11:00703 w/m2
12:00519 w/m2
13:00407 w/m2
14:00372 w/m2
15:00214 w/m2
16:00104 w/m2
17:0034 w/m2
Tomorrow, April 3
Total: 1770 wh/m2Hours07:0024 w/m2
08:0076 w/m2
09:00128 w/m2
10:00168 w/m2
11:00232 w/m2
12:00319 w/m2
13:00374 w/m2
14:00190 w/m2
15:00135 w/m2
16:0094 w/m2
17:0030 w/m2
Friday, April 4
Total: 2234 wh/m2Hours07:0054 w/m2
08:00196 w/m2
09:00321 w/m2
10:00452 w/m2
11:00396 w/m2
12:00202 w/m2
13:00195 w/m2
14:00172 w/m2
15:00133 w/m2
16:0084 w/m2
17:0029 w/m2
Saturday, April 5
Total: 5312 wh/m2Hours07:0081 w/m2
08:00299 w/m2
09:00502 w/m2
10:00662 w/m2
11:00765 w/m2
12:00798 w/m2
13:00744 w/m2
14:00600 w/m2
15:00469 w/m2
16:00293 w/m2
17:0099 w/m2
Sunday, April 6
Total: 2178 wh/m2Hours07:0029 w/m2
08:0089 w/m2
09:00137 w/m2
10:00181 w/m2
11:00209 w/m2
12:00296 w/m2
13:00351 w/m2
14:00360 w/m2
15:00288 w/m2
16:00178 w/m2
17:0060 w/m2
Monday, April 7
Total: 3753 wh/m2Hours07:0074 w/m2
08:00292 w/m2
09:00492 w/m2
10:00639 w/m2
11:00705 w/m2
12:00648 w/m2
13:00472 w/m2
14:00184 w/m2
15:00142 w/m2
16:0080 w/m2
17:0025 w/m2
Tuesday, April 8
Total: 1347 wh/m2Hours07:0019 w/m2
08:0072 w/m2
09:00123 w/m2
10:00162 w/m2
11:00188 w/m2
12:00197 w/m2
13:00190 w/m2
14:00166 w/m2
15:00128 w/m2
16:0078 w/m2
17:0024 w/m2
Wednesday, April 9
Total: 3589 wh/m2Hours07:0065 w/m2
08:00280 w/m2
09:00458 w/m2
10:00554 w/m2
11:00535 w/m2
12:00496 w/m2
13:00415 w/m2
14:00286 w/m2
15:00260 w/m2
16:00180 w/m2
17:0060 w/m2
Thursday, April 10
Total: 1322 wh/m2Hours07:0019 w/m2
08:0070 w/m2
09:00121 w/m2
10:00160 w/m2
11:00185 w/m2
12:00194 w/m2
13:00187 w/m2
14:00163 w/m2
15:00125 w/m2
16:0076 w/m2
17:0022 w/m2
Friday, April 11
Total: 4464 wh/m2Hours07:0020 w/m2
08:0070 w/m2
09:00303 w/m2
10:00547 w/m2
11:00707 w/m2
12:00728 w/m2
13:00677 w/m2
14:00570 w/m2
15:00467 w/m2
16:00292 w/m2
17:0083 w/m2
Saturday, April 12
Total: 1889 wh/m2Hours07:0057 w/m2
08:00152 w/m2
09:00244 w/m2
10:00287 w/m2
11:00287 w/m2
12:00266 w/m2
13:00221 w/m2
14:00160 w/m2
15:00122 w/m2
16:0073 w/m2
17:0020 w/m2
Sunday, April 13
Total: 1612 wh/m2Hours07:0026 w/m2
08:00129 w/m2
09:00195 w/m2
10:00203 w/m2
11:00181 w/m2
12:00210 w/m2
13:00219 w/m2
14:00206 w/m2
15:00145 w/m2
16:0079 w/m2
17:0019 w/m2
Monday, April 14
Total: 1445 wh/m2Hours07:0015 w/m2
08:0067 w/m2
09:00117 w/m2
10:00155 w/m2
11:00180 w/m2
12:00208 w/m2
13:00235 w/m2
14:00219 w/m2
15:00154 w/m2
16:0077 w/m2
17:0018 w/m2
Tuesday, April 15
Total: 1257 wh/m2Hours07:0014 w/m2
08:0066 w/m2
09:00116 w/m2
10:00154 w/m2
11:00179 w/m2
12:00188 w/m2
13:00180 w/m2
14:00156 w/m2
15:00118 w/m2
16:0069 w/m2
17:0017 w/m2
Wednesday, April 16
Total: 4984 wh/m2Hours07:0056 w/m2
08:00262 w/m2
09:00459 w/m2
10:00613 w/m2
11:00712 w/m2
12:00746 w/m2
13:00715 w/m2
14:00619 w/m2
15:00467 w/m2
16:00271 w/m2
17:0064 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.
