Solar radiation in Leiden 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, September 21
Total: 3984 wh/m2Hours08:0016 w/m2
09:00143 w/m2
10:00291 w/m2
11:00420 w/m2
12:00514 w/m2
13:00565 w/m2
14:00568 w/m2
15:00524 w/m2
16:00436 w/m2
17:00312 w/m2
18:00165 w/m2
19:0030 w/m2
Tomorrow, September 22
Total: 1954 wh/m2Hours08:005 w/m2
09:00111 w/m2
10:00257 w/m2
11:00366 w/m2
12:00330 w/m2
13:00140 w/m2
14:00141 w/m2
15:00130 w/m2
16:00221 w/m2
17:00194 w/m2
18:0040 w/m2
19:0019 w/m2
Monday, September 23
Total: 2414 wh/m2Hours08:003 w/m2
09:0034 w/m2
10:0078 w/m2
11:00211 w/m2
12:00278 w/m2
13:00324 w/m2
14:00407 w/m2
15:00441 w/m2
16:00241 w/m2
17:00239 w/m2
18:00136 w/m2
19:0022 w/m2
Tuesday, September 24
Total: 2355 wh/m2Hours08:008 w/m2
09:00100 w/m2
10:00224 w/m2
11:00339 w/m2
12:00376 w/m2
13:00348 w/m2
14:00263 w/m2
15:00251 w/m2
16:00215 w/m2
17:00157 w/m2
18:0067 w/m2
19:007 w/m2
Wednesday, September 25
Total: 1710 wh/m2Hours08:002 w/m2
09:0032 w/m2
10:0068 w/m2
11:00100 w/m2
12:00123 w/m2
13:00136 w/m2
14:00137 w/m2
15:00325 w/m2
16:00361 w/m2
17:00279 w/m2
18:00133 w/m2
19:0014 w/m2
Thursday, September 26
Total: 2563 wh/m2Hours08:002 w/m2
09:0043 w/m2
10:00117 w/m2
11:00204 w/m2
12:00369 w/m2
13:00482 w/m2
14:00524 w/m2
15:00434 w/m2
16:00270 w/m2
17:0077 w/m2
18:0037 w/m2
19:004 w/m2
Friday, September 27
Total: 1726 wh/m2Hours08:002 w/m2
09:0038 w/m2
10:00109 w/m2
11:00186 w/m2
12:00200 w/m2
13:00173 w/m2
14:00134 w/m2
15:00252 w/m2
16:00282 w/m2
17:00230 w/m2
18:00111 w/m2
19:009 w/m2
Saturday, September 28
Total: 3566 wh/m2Hours08:004 w/m2
09:00108 w/m2
10:00257 w/m2
11:00386 w/m2
12:00478 w/m2
13:00527 w/m2
14:00529 w/m2
15:00483 w/m2
16:00394 w/m2
17:00269 w/m2
18:00123 w/m2
19:008 w/m2
Sunday, September 29
Total: 3517 wh/m2Hours08:004 w/m2
09:00108 w/m2
10:00253 w/m2
11:00381 w/m2
12:00473 w/m2
13:00522 w/m2
14:00523 w/m2
15:00477 w/m2
16:00388 w/m2
17:00263 w/m2
18:00119 w/m2
19:006 w/m2
Monday, September 30
Total: 3055 wh/m2Hours08:003 w/m2
09:0097 w/m2
10:00237 w/m2
11:00367 w/m2
12:00460 w/m2
13:00511 w/m2
14:00514 w/m2
15:00438 w/m2
16:00274 w/m2
17:0064 w/m2
18:0085 w/m2
19:005 w/m2
Tuesday, October 1
Total: 2878 wh/m2Hours08:002 w/m2
09:00102 w/m2
10:00245 w/m2
11:00371 w/m2
12:00456 w/m2
13:00447 w/m2
14:00273 w/m2
15:00334 w/m2
16:00317 w/m2
17:00231 w/m2
18:0097 w/m2
19:003 w/m2
Wednesday, October 2
Total: 1308 wh/m2Hours09:0025 w/m2
10:0060 w/m2
11:0092 w/m2
12:00114 w/m2
13:00126 w/m2
14:00127 w/m2
15:00228 w/m2
16:00245 w/m2
17:00195 w/m2
18:0094 w/m2
19:002 w/m2
Thursday, October 3
Total: 3291 wh/m2Hours08:001 w/m2
09:0090 w/m2
10:00235 w/m2
11:00361 w/m2
12:00452 w/m2
13:00500 w/m2
14:00500 w/m2
15:00454 w/m2
16:00363 w/m2
17:00238 w/m2
18:0096 w/m2
19:001 w/m2
Friday, October 4
Total: 812 wh/m2Hours09:0023 w/m2
10:0058 w/m2
11:0089 w/m2
12:00112 w/m2
13:00124 w/m2
14:00124 w/m2
15:00112 w/m2
16:0089 w/m2
17:0058 w/m2
18:0023 w/m2
Saturday, October 5
Total: 1623 wh/m2Hours09:0075 w/m2
10:00201 w/m2
11:00319 w/m2
12:00348 w/m2
13:00278 w/m2
14:00122 w/m2
15:00110 w/m2
16:0088 w/m2
17:0056 w/m2
18:0026 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.
