Solar radiation in Helena 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, November 21
Total: 3634 wh/m2Hours08:0090 w/m2
09:00275 w/m2
10:00436 w/m2
11:00547 w/m2
12:00597 w/m2
13:00584 w/m2
14:00507 w/m2
15:00374 w/m2
16:00199 w/m2
17:0025 w/m2
Tomorrow, November 22
Total: 3607 wh/m2Hours08:0087 w/m2
09:00272 w/m2
10:00432 w/m2
11:00543 w/m2
12:00594 w/m2
13:00581 w/m2
14:00505 w/m2
15:00372 w/m2
16:00197 w/m2
17:0024 w/m2
Saturday, November 23
Total: 3586 wh/m2Hours08:0084 w/m2
09:00269 w/m2
10:00429 w/m2
11:00540 w/m2
12:00591 w/m2
13:00579 w/m2
14:00503 w/m2
15:00371 w/m2
16:00196 w/m2
17:0024 w/m2
Sunday, November 24
Total: 3564 wh/m2Hours08:0082 w/m2
09:00266 w/m2
10:00426 w/m2
11:00537 w/m2
12:00589 w/m2
13:00576 w/m2
14:00501 w/m2
15:00369 w/m2
16:00195 w/m2
17:0023 w/m2
Monday, November 25
Total: 3537 wh/m2Hours08:0079 w/m2
09:00262 w/m2
10:00422 w/m2
11:00534 w/m2
12:00586 w/m2
13:00574 w/m2
14:00498 w/m2
15:00367 w/m2
16:00193 w/m2
17:0022 w/m2
Tuesday, November 26
Total: 3293 wh/m2Hours08:0071 w/m2
09:00241 w/m2
10:00390 w/m2
11:00493 w/m2
12:00544 w/m2
13:00533 w/m2
14:00468 w/m2
15:00348 w/m2
16:00184 w/m2
17:0021 w/m2
Wednesday, November 27
Total: 3445 wh/m2Hours08:0072 w/m2
09:00252 w/m2
10:00409 w/m2
11:00520 w/m2
12:00571 w/m2
13:00561 w/m2
14:00489 w/m2
15:00360 w/m2
16:00189 w/m2
17:0022 w/m2
Thursday, November 28
Total: 1090 wh/m2Hours08:0018 w/m2
09:0063 w/m2
10:00103 w/m2
11:00131 w/m2
12:00145 w/m2
13:00142 w/m2
14:00183 w/m2
15:00180 w/m2
16:00112 w/m2
17:0013 w/m2
Friday, November 29
Total: 3458 wh/m2Hours08:0069 w/m2
09:00250 w/m2
10:00410 w/m2
11:00523 w/m2
12:00576 w/m2
13:00565 w/m2
14:00492 w/m2
15:00362 w/m2
16:00190 w/m2
17:0021 w/m2
Saturday, November 30
Total: 2656 wh/m2Hours08:0066 w/m2
09:00221 w/m2
10:00264 w/m2
11:00398 w/m2
12:00489 w/m2
13:00514 w/m2
14:00396 w/m2
15:00229 w/m2
16:0070 w/m2
17:009 w/m2
Sunday, December 1
Total: 865 wh/m2Hours08:0016 w/m2
09:0061 w/m2
10:00101 w/m2
11:00129 w/m2
12:00143 w/m2
13:00140 w/m2
14:00122 w/m2
15:0090 w/m2
16:0047 w/m2
17:0016 w/m2
Monday, December 2
Total: 3406 wh/m2Hours08:0062 w/m2
09:00241 w/m2
10:00402 w/m2
11:00515 w/m2
12:00569 w/m2
13:00560 w/m2
14:00488 w/m2
15:00359 w/m2
16:00189 w/m2
17:0021 w/m2
Tuesday, December 3
Total: 3391 wh/m2Hours08:0060 w/m2
09:00239 w/m2
10:00399 w/m2
11:00513 w/m2
12:00567 w/m2
13:00558 w/m2
14:00487 w/m2
15:00359 w/m2
16:00188 w/m2
17:0021 w/m2
Wednesday, December 4
Total: 2676 wh/m2Hours08:0058 w/m2
09:00236 w/m2
10:00397 w/m2
11:00502 w/m2
12:00467 w/m2
13:00167 w/m2
14:00329 w/m2
15:00316 w/m2
16:00183 w/m2
17:0021 w/m2
Thursday, December 5
Total: 3360 wh/m2Hours08:0055 w/m2
09:00233 w/m2
10:00394 w/m2
11:00508 w/m2
12:00563 w/m2
13:00555 w/m2
14:00485 w/m2
15:00358 w/m2
16:00188 w/m2
17:0021 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.
