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, March 17
Total: 4718 wh/m2Hours08:0017 w/m2
09:00175 w/m2
10:00341 w/m2
11:00501 w/m2
12:00618 w/m2
13:00680 w/m2
14:00680 w/m2
15:00598 w/m2
16:00501 w/m2
17:00379 w/m2
18:00198 w/m2
19:0030 w/m2
Tomorrow, March 18
Total: 4528 wh/m2Hours08:0019 w/m2
09:00166 w/m2
10:00329 w/m2
11:00466 w/m2
12:00570 w/m2
13:00625 w/m2
14:00630 w/m2
15:00585 w/m2
16:00503 w/m2
17:00375 w/m2
18:00213 w/m2
19:0047 w/m2
Wednesday, March 19
Total: 4989 wh/m2Hours08:0024 w/m2
09:00192 w/m2
10:00370 w/m2
11:00522 w/m2
12:00633 w/m2
13:00692 w/m2
14:00697 w/m2
15:00648 w/m2
16:00544 w/m2
17:00397 w/m2
18:00221 w/m2
19:0049 w/m2
Thursday, March 20
Total: 3703 wh/m2Hours08:0021 w/m2
09:00149 w/m2
10:00284 w/m2
11:00392 w/m2
12:00474 w/m2
13:00510 w/m2
14:00514 w/m2
15:00469 w/m2
16:00397 w/m2
17:00288 w/m2
18:00164 w/m2
19:0041 w/m2
Friday, March 21
Total: 4130 wh/m2Hours08:0029 w/m2
09:00185 w/m2
10:00340 w/m2
11:00463 w/m2
12:00549 w/m2
13:00581 w/m2
14:00565 w/m2
15:00512 w/m2
16:00414 w/m2
17:00291 w/m2
18:00160 w/m2
19:0041 w/m2
Saturday, March 22
Total: 4438 wh/m2Hours08:0030 w/m2
09:00171 w/m2
10:00317 w/m2
11:00441 w/m2
12:00531 w/m2
13:00592 w/m2
14:00613 w/m2
15:00580 w/m2
16:00503 w/m2
17:00381 w/m2
18:00222 w/m2
19:0057 w/m2
Sunday, March 23
Total: 4138 wh/m2Hours08:0036 w/m2
09:00191 w/m2
10:00348 w/m2
11:00473 w/m2
12:00558 w/m2
13:00596 w/m2
14:00565 w/m2
15:00496 w/m2
16:00399 w/m2
17:00279 w/m2
18:00155 w/m2
19:0042 w/m2
Monday, March 24
Total: 3928 wh/m2Hours08:0030 w/m2
09:00143 w/m2
10:00265 w/m2
11:00381 w/m2
12:00474 w/m2
13:00525 w/m2
14:00545 w/m2
15:00514 w/m2
16:00449 w/m2
17:00343 w/m2
18:00203 w/m2
19:0056 w/m2
Tuesday, March 25
Total: 4503 wh/m2Hours08:0042 w/m2
09:00191 w/m2
10:00342 w/m2
11:00469 w/m2
12:00561 w/m2
13:00610 w/m2
14:00614 w/m2
15:00565 w/m2
16:00480 w/m2
17:00358 w/m2
18:00211 w/m2
19:0060 w/m2
Wednesday, March 26
Total: 4689 wh/m2Hours08:0047 w/m2
09:00204 w/m2
10:00360 w/m2
11:00495 w/m2
12:00591 w/m2
13:00637 w/m2
14:00635 w/m2
15:00585 w/m2
16:00493 w/m2
17:00365 w/m2
18:00214 w/m2
19:0063 w/m2
Thursday, March 27
Total: 3327 wh/m2Hours08:0053 w/m2
09:00215 w/m2
10:00376 w/m2
11:00511 w/m2
12:00613 w/m2
13:00577 w/m2
14:00431 w/m2
15:00188 w/m2
16:00160 w/m2
17:00109 w/m2
18:0065 w/m2
19:0029 w/m2
Friday, March 28
Total: 4776 wh/m2Hours08:0017 w/m2
09:0061 w/m2
10:00268 w/m2
11:00488 w/m2
12:00651 w/m2
13:00688 w/m2
14:00672 w/m2
15:00598 w/m2
16:00555 w/m2
17:00433 w/m2
18:00263 w/m2
19:0082 w/m2
Saturday, March 29
Total: 3051 wh/m2Hours08:0068 w/m2
09:00250 w/m2
10:00415 w/m2
11:00461 w/m2
12:00205 w/m2
13:00204 w/m2
14:00205 w/m2
15:00173 w/m2
16:00365 w/m2
17:00368 w/m2
18:00253 w/m2
19:0084 w/m2
Sunday, March 30
Total: 4632 wh/m2Hours08:0073 w/m2
09:00255 w/m2
10:00433 w/m2
11:00580 w/m2
12:00675 w/m2
13:00664 w/m2
14:00507 w/m2
15:00192 w/m2
16:00462 w/m2
17:00431 w/m2
18:00272 w/m2
19:0088 w/m2
Monday, March 31
Total: 5177 wh/m2Hours08:0063 w/m2
09:00197 w/m2
10:00341 w/m2
11:00475 w/m2
12:00580 w/m2
13:00686 w/m2
14:00726 w/m2
15:00693 w/m2
16:00596 w/m2
17:00452 w/m2
18:00276 w/m2
19:0092 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.
