Solar radiation in Portland, Portland-Troutdale 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 21
Total: 1044 wh/m2Hours08:0018 w/m2
09:0072 w/m2
10:00132 w/m2
11:00187 w/m2
12:00205 w/m2
13:00176 w/m2
14:00150 w/m2
15:0094 w/m2
16:0010 w/m2
Tomorrow, November 22
Total: 853 wh/m2Hours08:009 w/m2
09:0044 w/m2
10:00113 w/m2
11:00143 w/m2
12:00152 w/m2
13:00174 w/m2
14:00134 w/m2
15:0073 w/m2
16:0011 w/m2
Saturday, November 23
Total: 772 wh/m2Hours08:0012 w/m2
09:0061 w/m2
10:00112 w/m2
11:00142 w/m2
12:00151 w/m2
13:00131 w/m2
14:00101 w/m2
15:0055 w/m2
16:007 w/m2
Sunday, November 24
Total: 1339 wh/m2Hours08:0021 w/m2
09:00108 w/m2
10:00191 w/m2
11:00243 w/m2
12:00254 w/m2
13:00234 w/m2
14:00179 w/m2
15:0097 w/m2
16:0012 w/m2
Monday, November 25
Total: 1218 wh/m2Hours08:0017 w/m2
09:0092 w/m2
10:00162 w/m2
11:00212 w/m2
12:00232 w/m2
13:00223 w/m2
14:00173 w/m2
15:0095 w/m2
16:0012 w/m2
Tuesday, November 26
Total: 1446 wh/m2Hours08:0019 w/m2
09:00113 w/m2
10:00198 w/m2
11:00257 w/m2
12:00279 w/m2
13:00259 w/m2
14:00200 w/m2
15:00108 w/m2
16:0013 w/m2
Wednesday, November 27
Total: 1482 wh/m2Hours08:0018 w/m2
09:00113 w/m2
10:00200 w/m2
11:00264 w/m2
12:00286 w/m2
13:00269 w/m2
14:00207 w/m2
15:00112 w/m2
16:0013 w/m2
Thursday, November 28
Total: 1783 wh/m2Hours08:0021 w/m2
09:00138 w/m2
10:00250 w/m2
11:00323 w/m2
12:00347 w/m2
13:00319 w/m2
14:00243 w/m2
15:00128 w/m2
16:0014 w/m2
Friday, November 29
Total: 1751 wh/m2Hours08:0019 w/m2
09:00135 w/m2
10:00246 w/m2
11:00317 w/m2
12:00341 w/m2
13:00313 w/m2
14:00240 w/m2
15:00126 w/m2
16:0014 w/m2
Saturday, November 30
Total: 1598 wh/m2Hours08:0015 w/m2
09:00115 w/m2
10:00217 w/m2
11:00287 w/m2
12:00315 w/m2
13:00294 w/m2
14:00225 w/m2
15:00118 w/m2
16:0012 w/m2
Sunday, December 1
Total: 1628 wh/m2Hours08:009 w/m2
09:00100 w/m2
10:00212 w/m2
11:00301 w/m2
12:00336 w/m2
13:00311 w/m2
14:00234 w/m2
15:00115 w/m2
16:0010 w/m2
Monday, December 2
Total: 1650 wh/m2Hours08:0014 w/m2
09:00125 w/m2
10:00237 w/m2
11:00310 w/m2
12:00332 w/m2
13:00300 w/m2
14:00218 w/m2
15:00105 w/m2
16:009 w/m2
Tuesday, December 3
Total: 1664 wh/m2Hours08:0012 w/m2
09:00122 w/m2
10:00234 w/m2
11:00307 w/m2
12:00333 w/m2
13:00307 w/m2
14:00230 w/m2
15:00111 w/m2
16:008 w/m2
Wednesday, December 4
Total: 1662 wh/m2Hours08:0011 w/m2
09:00119 w/m2
10:00231 w/m2
11:00305 w/m2
12:00330 w/m2
13:00305 w/m2
14:00231 w/m2
15:00119 w/m2
16:0011 w/m2
Thursday, December 5
Total: 1646 wh/m2Hours08:0010 w/m2
09:00117 w/m2
10:00228 w/m2
11:00302 w/m2
12:00328 w/m2
13:00303 w/m2
14:00229 w/m2
15:00118 w/m2
16:0011 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.
