Solar radiation in Washington Automatic Weather Observing / Reporting System 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: 1055 wh/m2Hours08:008 w/m2
09:0051 w/m2
10:0091 w/m2
11:00121 w/m2
12:00137 w/m2
13:00138 w/m2
14:00124 w/m2
15:00199 w/m2
16:00147 w/m2
17:0039 w/m2
Tomorrow, February 1
Total: 3299 wh/m2Hours08:0029 w/m2
09:00179 w/m2
10:00337 w/m2
11:00467 w/m2
12:00542 w/m2
13:00554 w/m2
14:00501 w/m2
15:00392 w/m2
16:00237 w/m2
17:0061 w/m2
Sunday, February 2
Total: 1959 wh/m2Hours08:0021 w/m2
09:00113 w/m2
10:00192 w/m2
11:00262 w/m2
12:00307 w/m2
13:00319 w/m2
14:00305 w/m2
15:00246 w/m2
16:00153 w/m2
17:0041 w/m2
Monday, February 3
Total: 2560 wh/m2Hours08:0026 w/m2
09:00140 w/m2
10:00256 w/m2
11:00351 w/m2
12:00410 w/m2
13:00434 w/m2
14:00393 w/m2
15:00308 w/m2
16:00189 w/m2
17:0053 w/m2
Tuesday, February 4
Total: 3357 wh/m2Hours08:0039 w/m2
09:00199 w/m2
10:00352 w/m2
11:00471 w/m2
12:00539 w/m2
13:00552 w/m2
14:00499 w/m2
15:00393 w/m2
16:00243 w/m2
17:0070 w/m2
Wednesday, February 5
Total: 2148 wh/m2Hours08:0026 w/m2
09:00124 w/m2
10:00220 w/m2
11:00288 w/m2
12:00335 w/m2
13:00348 w/m2
14:00323 w/m2
15:00262 w/m2
16:00170 w/m2
17:0052 w/m2
Thursday, February 6
Total: 2410 wh/m2Hours08:0030 w/m2
09:00142 w/m2
10:00249 w/m2
11:00332 w/m2
12:00383 w/m2
13:00387 w/m2
14:00358 w/m2
15:00289 w/m2
16:00184 w/m2
17:0056 w/m2
Friday, February 7
Total: 3011 wh/m2Hours08:0041 w/m2
09:00187 w/m2
10:00332 w/m2
11:00428 w/m2
12:00476 w/m2
13:00475 w/m2
14:00436 w/m2
15:00346 w/m2
16:00220 w/m2
17:0070 w/m2
Saturday, February 8
Total: 3024 wh/m2Hours08:0048 w/m2
09:00201 w/m2
10:00336 w/m2
11:00432 w/m2
12:00481 w/m2
13:00480 w/m2
14:00430 w/m2
15:00337 w/m2
16:00211 w/m2
17:0068 w/m2
Sunday, February 9
Total: 3093 wh/m2Hours08:0046 w/m2
09:00189 w/m2
10:00321 w/m2
11:00421 w/m2
12:00479 w/m2
13:00490 w/m2
14:00455 w/m2
15:00370 w/m2
16:00240 w/m2
17:0082 w/m2
Monday, February 10
Total: 3568 wh/m2Hours08:0060 w/m2
09:00230 w/m2
10:00379 w/m2
11:00484 w/m2
12:00536 w/m2
13:00533 w/m2
14:00531 w/m2
15:00437 w/m2
16:00281 w/m2
17:0097 w/m2
Tuesday, February 11
Total: 971 wh/m2Hours08:0017 w/m2
09:0063 w/m2
10:00105 w/m2
11:00135 w/m2
12:00151 w/m2
13:00153 w/m2
14:00139 w/m2
15:00111 w/m2
16:0072 w/m2
17:0025 w/m2
Wednesday, February 12
Total: 1005 wh/m2Hours08:0018 w/m2
09:0064 w/m2
10:00106 w/m2
11:00136 w/m2
12:00152 w/m2
13:00154 w/m2
14:00140 w/m2
15:00124 w/m2
16:0080 w/m2
17:0031 w/m2
Thursday, February 13
Total: 2878 wh/m2Hours08:0051 w/m2
09:00130 w/m2
10:00107 w/m2
11:00408 w/m2
12:00585 w/m2
13:00620 w/m2
14:00538 w/m2
15:00338 w/m2
16:0074 w/m2
17:0027 w/m2
Friday, February 14
Total: 1008 wh/m2Hours08:0020 w/m2
09:0067 w/m2
10:00109 w/m2
11:00139 w/m2
12:00155 w/m2
13:00157 w/m2
14:00143 w/m2
15:00115 w/m2
16:0075 w/m2
17:0028 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.
