Solar radiation in Napa, Napa County Airport 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 23
Total: 2519 wh/m2Hours08:0065 w/m2
09:00171 w/m2
10:00357 w/m2
11:00432 w/m2
12:00448 w/m2
13:00415 w/m2
14:00342 w/m2
15:00217 w/m2
16:0072 w/m2
Tomorrow, November 24
Total: 1771 wh/m2Hours08:0066 w/m2
09:00177 w/m2
10:00243 w/m2
11:00294 w/m2
12:00310 w/m2
13:00289 w/m2
14:00221 w/m2
15:00132 w/m2
16:0039 w/m2
Monday, November 25
Total: 1411 wh/m2Hours08:0045 w/m2
09:00122 w/m2
10:00193 w/m2
11:00234 w/m2
12:00247 w/m2
13:00230 w/m2
14:00186 w/m2
15:00117 w/m2
16:0037 w/m2
Tuesday, November 26
Total: 1936 wh/m2Hours08:0052 w/m2
09:00148 w/m2
10:00226 w/m2
11:00297 w/m2
12:00342 w/m2
13:00338 w/m2
14:00285 w/m2
15:00188 w/m2
16:0060 w/m2
Wednesday, November 27
Total: 2756 wh/m2Hours08:0086 w/m2
09:00242 w/m2
10:00372 w/m2
11:00455 w/m2
12:00482 w/m2
13:00452 w/m2
14:00365 w/m2
15:00231 w/m2
16:0071 w/m2
Thursday, November 28
Total: 2738 wh/m2Hours08:0085 w/m2
09:00243 w/m2
10:00373 w/m2
11:00455 w/m2
12:00480 w/m2
13:00447 w/m2
14:00360 w/m2
15:00226 w/m2
16:0069 w/m2
Friday, November 29
Total: 2543 wh/m2Hours08:0074 w/m2
09:00216 w/m2
10:00332 w/m2
11:00414 w/m2
12:00447 w/m2
13:00425 w/m2
14:00347 w/m2
15:00220 w/m2
16:0068 w/m2
Saturday, November 30
Total: 2731 wh/m2Hours08:0078 w/m2
09:00236 w/m2
10:00369 w/m2
11:00453 w/m2
12:00482 w/m2
13:00451 w/m2
14:00364 w/m2
15:00229 w/m2
16:0069 w/m2
Sunday, December 1
Total: 2700 wh/m2Hours08:0076 w/m2
09:00234 w/m2
10:00365 w/m2
11:00449 w/m2
12:00476 w/m2
13:00446 w/m2
14:00360 w/m2
15:00226 w/m2
16:0068 w/m2
Monday, December 2
Total: 2663 wh/m2Hours08:0073 w/m2
09:00228 w/m2
10:00356 w/m2
11:00441 w/m2
12:00471 w/m2
13:00442 w/m2
14:00358 w/m2
15:00226 w/m2
16:0068 w/m2
Tuesday, December 3
Total: 2625 wh/m2Hours08:0070 w/m2
09:00224 w/m2
10:00352 w/m2
11:00436 w/m2
12:00465 w/m2
13:00437 w/m2
14:00353 w/m2
15:00222 w/m2
16:0066 w/m2
Wednesday, December 4
Total: 745 wh/m2Hours08:0019 w/m2
09:0068 w/m2
10:00117 w/m2
11:00134 w/m2
12:00131 w/m2
13:00111 w/m2
14:0090 w/m2
15:0056 w/m2
16:0019 w/m2
Thursday, December 5
Total: 1842 wh/m2Hours08:0023 w/m2
09:0098 w/m2
10:00184 w/m2
11:00274 w/m2
12:00334 w/m2
13:00350 w/m2
14:00308 w/m2
15:00207 w/m2
16:0064 w/m2
Friday, December 6
Total: 888 wh/m2Hours08:0025 w/m2
09:0072 w/m2
10:0089 w/m2
11:00110 w/m2
12:00118 w/m2
13:00111 w/m2
14:00170 w/m2
15:00142 w/m2
16:0051 w/m2
Saturday, December 7
Total: 2626 wh/m2Hours08:0063 w/m2
09:00220 w/m2
10:00353 w/m2
11:00439 w/m2
12:00468 w/m2
13:00437 w/m2
14:00355 w/m2
15:00224 w/m2
16:0067 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.
