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, January 31
Total: 4052 wh/m2Hours08:0045 w/m2
09:00238 w/m2
10:00419 w/m2
11:00555 w/m2
12:00630 w/m2
13:00640 w/m2
14:00588 w/m2
15:00482 w/m2
16:00327 w/m2
17:00128 w/m2
Tomorrow, February 1
Total: 4199 wh/m2Hours08:0046 w/m2
09:00240 w/m2
10:00426 w/m2
11:00566 w/m2
12:00648 w/m2
13:00666 w/m2
14:00617 w/m2
15:00505 w/m2
16:00341 w/m2
17:00143 w/m2
18:001 w/m2
Sunday, February 2
Total: 4255 wh/m2Hours08:0049 w/m2
09:00245 w/m2
10:00431 w/m2
11:00572 w/m2
12:00655 w/m2
13:00672 w/m2
14:00623 w/m2
15:00512 w/m2
16:00347 w/m2
17:00148 w/m2
18:001 w/m2
Monday, February 3
Total: 4289 wh/m2Hours08:0050 w/m2
09:00247 w/m2
10:00433 w/m2
11:00575 w/m2
12:00659 w/m2
13:00677 w/m2
14:00628 w/m2
15:00516 w/m2
16:00351 w/m2
17:00152 w/m2
18:001 w/m2
Tuesday, February 4
Total: 4327 wh/m2Hours08:0053 w/m2
09:00252 w/m2
10:00439 w/m2
11:00580 w/m2
12:00662 w/m2
13:00680 w/m2
14:00631 w/m2
15:00519 w/m2
16:00355 w/m2
17:00155 w/m2
18:001 w/m2
Wednesday, February 5
Total: 4298 wh/m2Hours08:0054 w/m2
09:00250 w/m2
10:00433 w/m2
11:00573 w/m2
12:00656 w/m2
13:00675 w/m2
14:00627 w/m2
15:00517 w/m2
16:00354 w/m2
17:00157 w/m2
18:002 w/m2
Thursday, February 6
Total: 4290 wh/m2Hours08:0054 w/m2
09:00239 w/m2
10:00413 w/m2
11:00560 w/m2
12:00652 w/m2
13:00678 w/m2
14:00637 w/m2
15:00528 w/m2
16:00364 w/m2
17:00163 w/m2
18:002 w/m2
Friday, February 7
Total: 4195 wh/m2Hours08:0053 w/m2
09:00230 w/m2
10:00398 w/m2
11:00542 w/m2
12:00632 w/m2
13:00663 w/m2
14:00624 w/m2
15:00522 w/m2
16:00363 w/m2
17:00165 w/m2
18:003 w/m2
Saturday, February 8
Total: 4418 wh/m2Hours08:0061 w/m2
09:00259 w/m2
10:00444 w/m2
11:00585 w/m2
12:00669 w/m2
13:00689 w/m2
14:00641 w/m2
15:00531 w/m2
16:00367 w/m2
17:00168 w/m2
18:004 w/m2
Sunday, February 9
Total: 4332 wh/m2Hours08:0059 w/m2
09:00247 w/m2
10:00427 w/m2
11:00568 w/m2
12:00652 w/m2
13:00676 w/m2
14:00633 w/m2
15:00527 w/m2
16:00368 w/m2
17:00170 w/m2
18:005 w/m2
Monday, February 10
Total: 4440 wh/m2Hours08:0063 w/m2
09:00254 w/m2
10:00435 w/m2
11:00577 w/m2
12:00663 w/m2
13:00687 w/m2
14:00652 w/m2
15:00546 w/m2
16:00380 w/m2
17:00177 w/m2
18:006 w/m2
Tuesday, February 11
Total: 4617 wh/m2Hours08:0072 w/m2
09:00279 w/m2
10:00468 w/m2
11:00611 w/m2
12:00693 w/m2
13:00708 w/m2
14:00662 w/m2
15:00551 w/m2
16:00385 w/m2
17:00181 w/m2
18:007 w/m2
Wednesday, February 12
Total: 2855 wh/m2Hours08:0075 w/m2
09:00283 w/m2
10:00473 w/m2
11:00607 w/m2
12:00591 w/m2
13:00282 w/m2
14:00232 w/m2
15:00167 w/m2
16:0097 w/m2
17:0046 w/m2
18:002 w/m2
Thursday, February 13
Total: 1603 wh/m2Hours08:0052 w/m2
09:00142 w/m2
10:00131 w/m2
11:00201 w/m2
12:00245 w/m2
13:00283 w/m2
14:00234 w/m2
15:00168 w/m2
16:0098 w/m2
17:0047 w/m2
18:002 w/m2
Friday, February 14
Total: 1185 wh/m2Hours08:0020 w/m2
09:0073 w/m2
10:00120 w/m2
11:00156 w/m2
12:00177 w/m2
13:00182 w/m2
14:00169 w/m2
15:00141 w/m2
16:0099 w/m2
17:0048 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.
