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, November 22
Total: 3315 wh/m2Hours09:00108 w/m2
10:00285 w/m2
11:00430 w/m2
12:00522 w/m2
13:00550 w/m2
14:00532 w/m2
15:00447 w/m2
16:00304 w/m2
17:00136 w/m2
18:001 w/m2
Tomorrow, November 23
Total: 3140 wh/m2Hours09:00101 w/m2
10:00270 w/m2
11:00382 w/m2
12:00495 w/m2
13:00535 w/m2
14:00506 w/m2
15:00422 w/m2
16:00298 w/m2
17:00130 w/m2
18:001 w/m2
Sunday, November 24
Total: 3108 wh/m2Hours09:0098 w/m2
10:00274 w/m2
11:00421 w/m2
12:00511 w/m2
13:00508 w/m2
14:00488 w/m2
15:00412 w/m2
16:00284 w/m2
17:00112 w/m2
Monday, November 25
Total: 1890 wh/m2Hours09:0025 w/m2
10:0069 w/m2
11:00126 w/m2
12:00166 w/m2
13:00204 w/m2
14:00434 w/m2
15:00431 w/m2
16:00304 w/m2
17:00131 w/m2
Tuesday, November 26
Total: 1462 wh/m2Hours09:0051 w/m2
10:00112 w/m2
11:00181 w/m2
12:00233 w/m2
13:00260 w/m2
14:00227 w/m2
15:00182 w/m2
16:00112 w/m2
17:00104 w/m2
Wednesday, November 27
Total: 1296 wh/m2Hours09:0070 w/m2
10:00152 w/m2
11:00196 w/m2
12:00188 w/m2
13:00136 w/m2
14:00168 w/m2
15:00171 w/m2
16:00137 w/m2
17:0078 w/m2
Thursday, November 28
Total: 3191 wh/m2Hours09:0090 w/m2
10:00265 w/m2
11:00409 w/m2
12:00505 w/m2
13:00542 w/m2
14:00518 w/m2
15:00435 w/m2
16:00299 w/m2
17:00128 w/m2
Friday, November 29
Total: 796 wh/m2Hours09:0026 w/m2
10:0065 w/m2
11:00102 w/m2
12:00125 w/m2
13:00135 w/m2
14:00129 w/m2
15:00108 w/m2
16:0074 w/m2
17:0032 w/m2
Saturday, November 30
Total: 3147 wh/m2Hours09:0084 w/m2
10:00258 w/m2
11:00403 w/m2
12:00499 w/m2
13:00536 w/m2
14:00513 w/m2
15:00431 w/m2
16:00297 w/m2
17:00126 w/m2
Sunday, December 1
Total: 782 wh/m2Hours09:0020 w/m2
10:0064 w/m2
11:00100 w/m2
12:00124 w/m2
13:00134 w/m2
14:00128 w/m2
15:00107 w/m2
16:0074 w/m2
17:0031 w/m2
Monday, December 2
Total: 894 wh/m2Hours09:0022 w/m2
10:0069 w/m2
11:00109 w/m2
12:00123 w/m2
13:00133 w/m2
14:00140 w/m2
15:00128 w/m2
16:0095 w/m2
17:0075 w/m2
Tuesday, December 3
Total: 824 wh/m2Hours09:0019 w/m2
10:0062 w/m2
11:0099 w/m2
12:00123 w/m2
13:00132 w/m2
14:00127 w/m2
15:00107 w/m2
16:0073 w/m2
17:0082 w/m2
Wednesday, December 4
Total: 2509 wh/m2Hours09:0066 w/m2
10:00239 w/m2
11:00366 w/m2
12:00420 w/m2
13:00398 w/m2
14:00376 w/m2
15:00316 w/m2
16:00214 w/m2
17:00114 w/m2
Thursday, December 5
Total: 3058 wh/m2Hours09:0071 w/m2
10:00243 w/m2
11:00389 w/m2
12:00486 w/m2
13:00526 w/m2
14:00504 w/m2
15:00424 w/m2
16:00292 w/m2
17:00123 w/m2
Friday, December 6
Total: 2920 wh/m2Hours09:0068 w/m2
10:00240 w/m2
11:00386 w/m2
12:00484 w/m2
13:00524 w/m2
14:00503 w/m2
15:00423 w/m2
16:00292 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.