Solar radiation in San Francisco 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, December 19
Total: 2117 wh/m2Hours07:0066 w/m2
08:00105 w/m2
09:00153 w/m2
10:00198 w/m2
11:00227 w/m2
12:00285 w/m2
13:00230 w/m2
14:00320 w/m2
15:00344 w/m2
16:00137 w/m2
17:0052 w/m2
Tomorrow, December 20
Total: 2668 wh/m2Hours07:0084 w/m2
08:00274 w/m2
09:00183 w/m2
10:00274 w/m2
11:00484 w/m2
12:00374 w/m2
13:00381 w/m2
14:00302 w/m2
15:00162 w/m2
16:00106 w/m2
17:0044 w/m2
Saturday, December 21
Total: 2924 wh/m2Hours07:00115 w/m2
08:00222 w/m2
09:00301 w/m2
10:00712 w/m2
11:00413 w/m2
12:00374 w/m2
13:00230 w/m2
14:00205 w/m2
15:00178 w/m2
16:00107 w/m2
17:0066 w/m2
18:001 w/m2
Sunday, December 22
Total: 5361 wh/m2Hours07:00121 w/m2
08:00340 w/m2
09:00394 w/m2
10:00556 w/m2
11:00833 w/m2
12:00889 w/m2
13:00814 w/m2
14:00609 w/m2
15:00450 w/m2
16:00244 w/m2
17:00111 w/m2
Monday, December 23
Total: 4038 wh/m2Hours07:0052 w/m2
08:00179 w/m2
09:00323 w/m2
10:00474 w/m2
11:00574 w/m2
12:00618 w/m2
13:00626 w/m2
14:00520 w/m2
15:00371 w/m2
16:00222 w/m2
17:0079 w/m2
Tuesday, December 24
Total: 4000 wh/m2Hours07:0077 w/m2
08:00248 w/m2
09:00426 w/m2
10:00584 w/m2
11:00614 w/m2
12:00573 w/m2
13:00475 w/m2
14:00407 w/m2
15:00311 w/m2
16:00189 w/m2
17:0095 w/m2
18:001 w/m2
Wednesday, December 25
Total: 2881 wh/m2Hours07:0053 w/m2
08:00191 w/m2
09:00353 w/m2
10:00509 w/m2
11:00499 w/m2
12:00415 w/m2
13:00277 w/m2
14:00247 w/m2
15:00181 w/m2
16:00109 w/m2
17:0047 w/m2
Thursday, December 26
Total: 3608 wh/m2Hours07:0085 w/m2
08:00287 w/m2
09:00497 w/m2
10:00687 w/m2
11:00672 w/m2
12:00525 w/m2
13:00255 w/m2
14:00227 w/m2
15:00181 w/m2
16:00121 w/m2
17:0070 w/m2
18:001 w/m2
Friday, December 27
Total: 4487 wh/m2Hours07:0096 w/m2
08:00278 w/m2
09:00423 w/m2
10:00496 w/m2
11:00573 w/m2
12:00604 w/m2
13:00587 w/m2
14:00536 w/m2
15:00447 w/m2
16:00310 w/m2
17:00135 w/m2
18:002 w/m2
Saturday, December 28
Total: 5966 wh/m2Hours07:00110 w/m2
08:00342 w/m2
09:00558 w/m2
10:00727 w/m2
11:00849 w/m2
12:00907 w/m2
13:00889 w/m2
14:00736 w/m2
15:00507 w/m2
16:00244 w/m2
17:0096 w/m2
18:001 w/m2
Sunday, December 29
Total: 1786 wh/m2Hours07:0040 w/m2
08:00118 w/m2
09:00164 w/m2
10:00195 w/m2
11:00226 w/m2
12:00239 w/m2
13:00232 w/m2
14:00207 w/m2
15:00183 w/m2
16:00122 w/m2
17:0059 w/m2
18:001 w/m2
Monday, December 30
Total: 3582 wh/m2Hours07:0068 w/m2
08:00218 w/m2
09:00349 w/m2
10:00457 w/m2
11:00482 w/m2
12:00454 w/m2
13:00385 w/m2
14:00412 w/m2
15:00367 w/m2
16:00269 w/m2
17:00119 w/m2
18:002 w/m2
Tuesday, December 31
Total: 4958 wh/m2Hours07:0028 w/m2
08:00157 w/m2
09:00348 w/m2
10:00540 w/m2
11:00661 w/m2
12:00721 w/m2
13:00724 w/m2
14:00673 w/m2
15:00552 w/m2
16:00379 w/m2
17:00172 w/m2
18:003 w/m2
Wednesday, January 1
Total: 5603 wh/m2Hours07:0092 w/m2
08:00306 w/m2
09:00515 w/m2
10:00683 w/m2
11:00747 w/m2
12:00732 w/m2
13:00645 w/m2
14:00674 w/m2
15:00600 w/m2
16:00429 w/m2
17:00177 w/m2
18:003 w/m2
Thursday, January 2
Total: 5875 wh/m2Hours07:0099 w/m2
08:00334 w/m2
09:00562 w/m2
10:00753 w/m2
11:00852 w/m2
12:00869 w/m2
13:00796 w/m2
14:00699 w/m2
15:00549 w/m2
16:00362 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.
