Solar radiation in Greenwich 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 22
Total: 2168 wh/m2Hours07:0031 w/m2
08:00124 w/m2
09:00213 w/m2
10:00281 w/m2
11:00309 w/m2
12:00320 w/m2
13:00302 w/m2
14:00245 w/m2
15:00178 w/m2
16:00153 w/m2
17:0012 w/m2
Tomorrow, April 23
Total: 3328 wh/m2Hours07:0039 w/m2
08:00137 w/m2
09:00287 w/m2
10:00412 w/m2
11:00405 w/m2
12:00605 w/m2
13:00446 w/m2
14:00476 w/m2
15:00296 w/m2
16:00204 w/m2
17:0021 w/m2
Thursday, April 24
Total: 4251 wh/m2Hours07:0046 w/m2
08:00240 w/m2
09:00423 w/m2
10:00536 w/m2
11:00609 w/m2
12:00624 w/m2
13:00623 w/m2
14:00533 w/m2
15:00393 w/m2
16:00204 w/m2
17:0020 w/m2
Friday, April 25
Total: 4395 wh/m2Hours07:0048 w/m2
08:00241 w/m2
09:00430 w/m2
10:00575 w/m2
11:00655 w/m2
12:00671 w/m2
13:00626 w/m2
14:00538 w/m2
15:00390 w/m2
16:00203 w/m2
17:0018 w/m2
Saturday, April 26
Total: 2571 wh/m2Hours07:0035 w/m2
08:00122 w/m2
09:00273 w/m2
10:00283 w/m2
11:00503 w/m2
12:00481 w/m2
13:00330 w/m2
14:00258 w/m2
15:00185 w/m2
16:0094 w/m2
17:007 w/m2
Sunday, April 27
Total: 3518 wh/m2Hours07:0019 w/m2
08:00161 w/m2
09:00360 w/m2
10:00534 w/m2
11:00584 w/m2
12:00565 w/m2
13:00481 w/m2
14:00392 w/m2
15:00276 w/m2
16:00134 w/m2
17:0012 w/m2
Monday, April 28
Total: 3130 wh/m2Hours07:0038 w/m2
08:00186 w/m2
09:00292 w/m2
10:00329 w/m2
11:00400 w/m2
12:00436 w/m2
13:00437 w/m2
14:00454 w/m2
15:00359 w/m2
16:00187 w/m2
17:0012 w/m2
Tuesday, April 29
Total: 4279 wh/m2Hours07:0043 w/m2
08:00235 w/m2
09:00418 w/m2
10:00558 w/m2
11:00643 w/m2
12:00667 w/m2
13:00627 w/m2
14:00527 w/m2
15:00372 w/m2
16:00179 w/m2
17:0010 w/m2
Wednesday, April 30
Total: 4133 wh/m2Hours07:0039 w/m2
08:00223 w/m2
09:00401 w/m2
10:00542 w/m2
11:00627 w/m2
12:00652 w/m2
13:00615 w/m2
14:00509 w/m2
15:00352 w/m2
16:00165 w/m2
17:008 w/m2
Thursday, May 1
Total: 3284 wh/m2Hours07:0024 w/m2
08:00122 w/m2
09:00178 w/m2
10:00178 w/m2
11:00485 w/m2
12:00624 w/m2
13:00615 w/m2
14:00514 w/m2
15:00362 w/m2
16:00174 w/m2
17:008 w/m2
Friday, May 2
Total: 2306 wh/m2Hours07:0037 w/m2
08:00223 w/m2
09:00384 w/m2
10:00460 w/m2
11:00451 w/m2
12:00335 w/m2
13:00153 w/m2
14:00128 w/m2
15:0090 w/m2
16:0043 w/m2
17:002 w/m2
Saturday, May 3
Total: 4116 wh/m2Hours07:0035 w/m2
08:00222 w/m2
09:00402 w/m2
10:00540 w/m2
11:00624 w/m2
12:00647 w/m2
13:00607 w/m2
14:00508 w/m2
15:00357 w/m2
16:00169 w/m2
17:005 w/m2
Sunday, May 4
Total: 4073 wh/m2Hours07:0033 w/m2
08:00218 w/m2
09:00398 w/m2
10:00536 w/m2
11:00619 w/m2
12:00642 w/m2
13:00603 w/m2
14:00503 w/m2
15:00352 w/m2
16:00165 w/m2
17:004 w/m2
Monday, May 5
Total: 4035 wh/m2Hours07:0031 w/m2
08:00215 w/m2
09:00394 w/m2
10:00531 w/m2
11:00615 w/m2
12:00638 w/m2
13:00598 w/m2
14:00499 w/m2
15:00348 w/m2
16:00162 w/m2
17:004 w/m2
Tuesday, May 6
Total: 1713 wh/m2Hours07:007 w/m2
08:0053 w/m2
09:0098 w/m2
10:00132 w/m2
11:00168 w/m2
12:00174 w/m2
13:00178 w/m2
14:00404 w/m2
15:00338 w/m2
16:00158 w/m2
17:003 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.
