Solar radiation in Viseu 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, February 20
Total: 1207 wh/m2Hours08:0018 w/m2
09:0063 w/m2
10:00105 w/m2
11:00240 w/m2
12:00156 w/m2
13:00160 w/m2
14:00149 w/m2
15:00172 w/m2
16:00103 w/m2
17:0040 w/m2
18:001 w/m2
Tomorrow, February 21
Total: 1056 wh/m2Hours08:0017 w/m2
09:0064 w/m2
10:00107 w/m2
11:00139 w/m2
12:00158 w/m2
13:00162 w/m2
14:00151 w/m2
15:00125 w/m2
16:0087 w/m2
17:0041 w/m2
18:005 w/m2
Saturday, February 22
Total: 3188 wh/m2Hours08:0018 w/m2
09:0072 w/m2
10:00316 w/m2
11:00388 w/m2
12:00432 w/m2
13:00514 w/m2
14:00502 w/m2
15:00445 w/m2
16:00330 w/m2
17:00164 w/m2
18:007 w/m2
Sunday, February 23
Total: 3905 wh/m2Hours08:0076 w/m2
09:00267 w/m2
10:00438 w/m2
11:00567 w/m2
12:00642 w/m2
13:00658 w/m2
14:00612 w/m2
15:00484 w/m2
16:00116 w/m2
17:0043 w/m2
18:002 w/m2
Monday, February 24
Total: 1945 wh/m2Hours08:0075 w/m2
09:00269 w/m2
10:00410 w/m2
11:00404 w/m2
12:00162 w/m2
13:00166 w/m2
14:00170 w/m2
15:00142 w/m2
16:00100 w/m2
17:0044 w/m2
18:003 w/m2
Tuesday, February 25
Total: 2995 wh/m2Hours08:0046 w/m2
09:00176 w/m2
10:00231 w/m2
11:00227 w/m2
12:00163 w/m2
13:00526 w/m2
14:00605 w/m2
15:00519 w/m2
16:00357 w/m2
17:00142 w/m2
18:003 w/m2
Wednesday, February 26
Total: 2209 wh/m2Hours08:0047 w/m2
09:0071 w/m2
10:00114 w/m2
11:00161 w/m2
12:00181 w/m2
13:00359 w/m2
14:00442 w/m2
15:00438 w/m2
16:00276 w/m2
17:00114 w/m2
18:006 w/m2
Thursday, February 27
Total: 4518 wh/m2Hours08:0095 w/m2
09:00288 w/m2
10:00461 w/m2
11:00589 w/m2
12:00664 w/m2
13:00679 w/m2
14:00633 w/m2
15:00529 w/m2
16:00376 w/m2
17:00189 w/m2
18:0015 w/m2
Friday, February 28
Total: 2925 wh/m2Hours08:00100 w/m2
09:00289 w/m2
10:00443 w/m2
11:00529 w/m2
12:00527 w/m2
13:00454 w/m2
14:00303 w/m2
15:00133 w/m2
16:0095 w/m2
17:0048 w/m2
18:004 w/m2
Saturday, March 1
Total: 1156 wh/m2Hours08:0026 w/m2
09:0075 w/m2
10:00118 w/m2
11:00150 w/m2
12:00169 w/m2
13:00172 w/m2
14:00161 w/m2
15:00135 w/m2
16:0096 w/m2
17:0049 w/m2
18:005 w/m2
Sunday, March 2
Total: 3520 wh/m2Hours08:0048 w/m2
09:0076 w/m2
10:00198 w/m2
11:00334 w/m2
12:00451 w/m2
13:00622 w/m2
14:00636 w/m2
15:00543 w/m2
16:00389 w/m2
17:00201 w/m2
18:0022 w/m2
Monday, March 3
Total: 2173 wh/m2Hours08:0029 w/m2
09:0078 w/m2
10:00121 w/m2
11:00153 w/m2
12:00171 w/m2
13:00319 w/m2
14:00403 w/m2
15:00407 w/m2
16:00306 w/m2
17:00166 w/m2
18:0020 w/m2
Tuesday, March 4
Total: 4342 wh/m2Hours08:00120 w/m2
09:00316 w/m2
10:00479 w/m2
11:00576 w/m2
12:00571 w/m2
13:00601 w/m2
14:00571 w/m2
15:00491 w/m2
16:00383 w/m2
17:00208 w/m2
18:0026 w/m2
Wednesday, March 5
Total: 3222 wh/m2Hours08:00105 w/m2
09:00160 w/m2
10:00367 w/m2
11:00554 w/m2
12:00671 w/m2
13:00611 w/m2
14:00430 w/m2
15:00153 w/m2
16:00111 w/m2
17:0053 w/m2
18:007 w/m2
Thursday, March 6
Total: 3249 wh/m2Hours08:0072 w/m2
09:0082 w/m2
10:00150 w/m2
11:00218 w/m2
12:00275 w/m2
13:00585 w/m2
14:00649 w/m2
15:00562 w/m2
16:00407 w/m2
17:00218 w/m2
18:0031 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.
