Solar radiation in Sammamish 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, April 4
Total: 5520 wh/m2Hours07:006 w/m2
08:00142 w/m2
09:00320 w/m2
10:00484 w/m2
11:00611 w/m2
12:00695 w/m2
13:00737 w/m2
14:00720 w/m2
15:00647 w/m2
16:00533 w/m2
17:00381 w/m2
18:00203 w/m2
19:0041 w/m2
Tomorrow, April 5
Total: 4465 wh/m2Hours07:008 w/m2
08:00130 w/m2
09:00283 w/m2
10:00417 w/m2
11:00538 w/m2
12:00508 w/m2
13:00561 w/m2
14:00587 w/m2
15:00504 w/m2
16:00360 w/m2
17:00343 w/m2
18:00188 w/m2
19:0038 w/m2
Sunday, April 6
Total: 2728 wh/m2Hours07:006 w/m2
08:0066 w/m2
09:00158 w/m2
10:00245 w/m2
11:00333 w/m2
12:00379 w/m2
13:00412 w/m2
14:00402 w/m2
15:00315 w/m2
16:00214 w/m2
17:00118 w/m2
18:0065 w/m2
19:0015 w/m2
Monday, April 7
Total: 2521 wh/m2Hours07:006 w/m2
08:0078 w/m2
09:00154 w/m2
10:00218 w/m2
11:00247 w/m2
12:00281 w/m2
13:00295 w/m2
14:00288 w/m2
15:00303 w/m2
16:00272 w/m2
17:00218 w/m2
18:00129 w/m2
19:0032 w/m2
Tuesday, April 8
Total: 2489 wh/m2Hours07:009 w/m2
08:0090 w/m2
09:00176 w/m2
10:00230 w/m2
11:00249 w/m2
12:00283 w/m2
13:00313 w/m2
14:00306 w/m2
15:00277 w/m2
16:00241 w/m2
17:00174 w/m2
18:00111 w/m2
19:0030 w/m2
Wednesday, April 9
Total: 4687 wh/m2Hours07:0014 w/m2
08:00135 w/m2
09:00277 w/m2
10:00402 w/m2
11:00504 w/m2
12:00578 w/m2
13:00606 w/m2
14:00600 w/m2
15:00544 w/m2
16:00456 w/m2
17:00334 w/m2
18:00189 w/m2
19:0048 w/m2
Thursday, April 10
Total: 4677 wh/m2Hours07:0017 w/m2
08:00144 w/m2
09:00288 w/m2
10:00421 w/m2
11:00520 w/m2
12:00582 w/m2
13:00610 w/m2
14:00588 w/m2
15:00526 w/m2
16:00436 w/m2
17:00312 w/m2
18:00183 w/m2
19:0050 w/m2
Friday, April 11
Total: 5050 wh/m2Hours07:0020 w/m2
08:00146 w/m2
09:00293 w/m2
10:00420 w/m2
11:00524 w/m2
12:00642 w/m2
13:00672 w/m2
14:00656 w/m2
15:00590 w/m2
16:00486 w/m2
17:00347 w/m2
18:00199 w/m2
19:0055 w/m2
Saturday, April 12
Total: 4550 wh/m2Hours07:0020 w/m2
08:00132 w/m2
09:00265 w/m2
10:00396 w/m2
11:00507 w/m2
12:00573 w/m2
13:00591 w/m2
14:00577 w/m2
15:00516 w/m2
16:00429 w/m2
17:00308 w/m2
18:00183 w/m2
19:0053 w/m2
Sunday, April 13
Total: 4921 wh/m2Hours07:0024 w/m2
08:00151 w/m2
09:00294 w/m2
10:00428 w/m2
11:00537 w/m2
12:00606 w/m2
13:00634 w/m2
14:00619 w/m2
15:00562 w/m2
16:00467 w/m2
17:00342 w/m2
18:00199 w/m2
19:0058 w/m2
Monday, April 14
Total: 4740 wh/m2Hours07:0028 w/m2
08:00157 w/m2
09:00298 w/m2
10:00421 w/m2
11:00507 w/m2
12:00571 w/m2
13:00605 w/m2
14:00591 w/m2
15:00537 w/m2
16:00447 w/m2
17:00328 w/m2
18:00192 w/m2
19:0058 w/m2
Tuesday, April 15
Total: 4356 wh/m2Hours07:0030 w/m2
08:00161 w/m2
09:00305 w/m2
10:00435 w/m2
11:00538 w/m2
12:00518 w/m2
13:00403 w/m2
14:00229 w/m2
15:00498 w/m2
16:00534 w/m2
17:00421 w/m2
18:00230 w/m2
19:0054 w/m2
Wednesday, April 16
Total: 2074 wh/m2Hours07:0034 w/m2
08:00171 w/m2
09:00270 w/m2
10:00279 w/m2
11:00167 w/m2
12:00188 w/m2
13:00216 w/m2
14:00211 w/m2
15:00192 w/m2
16:00145 w/m2
17:00107 w/m2
18:0070 w/m2
19:0024 w/m2
Thursday, April 17
Total: 1558 wh/m2Hours07:0011 w/m2
08:0052 w/m2
09:0097 w/m2
10:00137 w/m2
11:00168 w/m2
12:00189 w/m2
13:00197 w/m2
14:00193 w/m2
15:00175 w/m2
16:00146 w/m2
17:00108 w/m2
18:0064 w/m2
19:0021 w/m2
Friday, April 18
Total: 2158 wh/m2Hours07:0012 w/m2
08:0053 w/m2
09:0098 w/m2
10:00138 w/m2
11:00169 w/m2
12:00190 w/m2
13:00198 w/m2
14:00193 w/m2
15:00291 w/m2
16:00334 w/m2
17:00295 w/m2
18:00148 w/m2
19:0039 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.
