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: 3918 wh/m2Hours07:0043 w/m2
08:00232 w/m2
09:00411 w/m2
10:00545 w/m2
11:00621 w/m2
12:00632 w/m2
13:00577 w/m2
14:00461 w/m2
15:00295 w/m2
16:00101 w/m2
Tomorrow, November 22
Total: 3894 wh/m2Hours07:0041 w/m2
08:00229 w/m2
09:00408 w/m2
10:00542 w/m2
11:00618 w/m2
12:00629 w/m2
13:00575 w/m2
14:00459 w/m2
15:00293 w/m2
16:00100 w/m2
Saturday, November 23
Total: 3870 wh/m2Hours07:0039 w/m2
08:00226 w/m2
09:00405 w/m2
10:00539 w/m2
11:00615 w/m2
12:00626 w/m2
13:00572 w/m2
14:00457 w/m2
15:00292 w/m2
16:0099 w/m2
Sunday, November 24
Total: 3841 wh/m2Hours07:0036 w/m2
08:00222 w/m2
09:00401 w/m2
10:00535 w/m2
11:00611 w/m2
12:00623 w/m2
13:00570 w/m2
14:00455 w/m2
15:00290 w/m2
16:0098 w/m2
Monday, November 25
Total: 3693 wh/m2Hours07:0033 w/m2
08:00208 w/m2
09:00381 w/m2
10:00512 w/m2
11:00587 w/m2
12:00600 w/m2
13:00552 w/m2
14:00442 w/m2
15:00283 w/m2
16:0095 w/m2
Tuesday, November 26
Total: 3540 wh/m2Hours07:0031 w/m2
08:00203 w/m2
09:00369 w/m2
10:00495 w/m2
11:00563 w/m2
12:00572 w/m2
13:00526 w/m2
14:00422 w/m2
15:00269 w/m2
16:0090 w/m2
Wednesday, November 27
Total: 3491 wh/m2Hours07:0028 w/m2
08:00195 w/m2
09:00360 w/m2
10:00487 w/m2
11:00561 w/m2
12:00576 w/m2
13:00524 w/m2
14:00414 w/m2
15:00260 w/m2
16:0086 w/m2
Thursday, November 28
Total: 1402 wh/m2Hours07:0011 w/m2
08:00100 w/m2
09:00207 w/m2
10:00249 w/m2
11:00236 w/m2
12:00199 w/m2
13:00169 w/m2
14:00124 w/m2
15:0072 w/m2
16:0035 w/m2
Friday, November 29
Total: 3738 wh/m2Hours07:0027 w/m2
08:00207 w/m2
09:00386 w/m2
10:00521 w/m2
11:00599 w/m2
12:00612 w/m2
13:00561 w/m2
14:00448 w/m2
15:00284 w/m2
16:0093 w/m2
Saturday, November 30
Total: 1875 wh/m2Hours07:0013 w/m2
08:0093 w/m2
09:00150 w/m2
10:00203 w/m2
11:00221 w/m2
12:00226 w/m2
13:00327 w/m2
14:00332 w/m2
15:00240 w/m2
16:0070 w/m2
Sunday, December 1
Total: 2422 wh/m2Hours07:006 w/m2
08:0050 w/m2
09:0095 w/m2
10:00214 w/m2
11:00327 w/m2
12:00404 w/m2
13:00506 w/m2
14:00442 w/m2
15:00284 w/m2
16:0094 w/m2
Monday, December 2
Total: 3690 wh/m2Hours07:0022 w/m2
08:00199 w/m2
09:00378 w/m2
10:00513 w/m2
11:00592 w/m2
12:00607 w/m2
13:00556 w/m2
14:00445 w/m2
15:00284 w/m2
16:0094 w/m2
Tuesday, December 3
Total: 3674 wh/m2Hours07:0020 w/m2
08:00196 w/m2
09:00375 w/m2
10:00511 w/m2
11:00590 w/m2
12:00605 w/m2
13:00555 w/m2
14:00445 w/m2
15:00283 w/m2
16:0094 w/m2
Wednesday, December 4
Total: 3352 wh/m2Hours07:008 w/m2
08:00107 w/m2
09:00247 w/m2
10:00445 w/m2
11:00571 w/m2
12:00602 w/m2
13:00553 w/m2
14:00443 w/m2
15:00282 w/m2
16:0094 w/m2
Thursday, December 5
Total: 3249 wh/m2Hours07:0018 w/m2
08:00191 w/m2
09:00370 w/m2
10:00506 w/m2
11:00584 w/m2
12:00593 w/m2
13:00505 w/m2
14:00318 w/m2
15:0092 w/m2
16:0072 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.
