Solar radiation in Gray/Portland 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: 839 wh/m2Hours07:002 w/m2
08:0051 w/m2
09:0099 w/m2
10:00136 w/m2
11:00155 w/m2
12:00145 w/m2
13:00125 w/m2
14:0088 w/m2
15:0037 w/m2
16:001 w/m2
Tomorrow, November 22
Total: 1889 wh/m2Hours07:003 w/m2
08:0094 w/m2
09:00202 w/m2
10:00291 w/m2
11:00340 w/m2
12:00349 w/m2
13:00307 w/m2
14:00210 w/m2
15:0092 w/m2
16:001 w/m2
Saturday, November 23
Total: 1279 wh/m2Hours07:002 w/m2
08:0063 w/m2
09:00138 w/m2
10:00192 w/m2
11:00227 w/m2
12:00226 w/m2
13:00201 w/m2
14:00154 w/m2
15:0075 w/m2
16:001 w/m2
Sunday, November 24
Total: 2029 wh/m2Hours07:002 w/m2
08:00100 w/m2
09:00218 w/m2
10:00312 w/m2
11:00366 w/m2
12:00371 w/m2
13:00326 w/m2
14:00231 w/m2
15:00102 w/m2
16:001 w/m2
Monday, November 25
Total: 2171 wh/m2Hours07:002 w/m2
08:00114 w/m2
09:00247 w/m2
10:00344 w/m2
11:00394 w/m2
12:00391 w/m2
13:00337 w/m2
14:00237 w/m2
15:00104 w/m2
16:001 w/m2
Tuesday, November 26
Total: 1861 wh/m2Hours07:002 w/m2
08:0093 w/m2
09:00206 w/m2
10:00293 w/m2
11:00336 w/m2
12:00338 w/m2
13:00292 w/m2
14:00208 w/m2
15:0092 w/m2
16:001 w/m2
Wednesday, November 27
Total: 2048 wh/m2Hours07:001 w/m2
08:00104 w/m2
09:00233 w/m2
10:00325 w/m2
11:00371 w/m2
12:00368 w/m2
13:00314 w/m2
14:00231 w/m2
15:00100 w/m2
16:001 w/m2
Thursday, November 28
Total: 2078 wh/m2Hours07:001 w/m2
08:00104 w/m2
09:00236 w/m2
10:00331 w/m2
11:00381 w/m2
12:00377 w/m2
13:00324 w/m2
14:00227 w/m2
15:0097 w/m2
Friday, November 29
Total: 1879 wh/m2Hours07:001 w/m2
08:0090 w/m2
09:00209 w/m2
10:00298 w/m2
11:00344 w/m2
12:00344 w/m2
13:00297 w/m2
14:00207 w/m2
15:0089 w/m2
Saturday, November 30
Total: 2069 wh/m2Hours08:0096 w/m2
09:00227 w/m2
10:00326 w/m2
11:00380 w/m2
12:00381 w/m2
13:00330 w/m2
14:00231 w/m2
15:0098 w/m2
Sunday, December 1
Total: 2006 wh/m2Hours08:0096 w/m2
09:00228 w/m2
10:00328 w/m2
11:00379 w/m2
12:00378 w/m2
13:00326 w/m2
14:00206 w/m2
15:0065 w/m2
Monday, December 2
Total: 1347 wh/m2Hours08:0087 w/m2
09:00216 w/m2
10:00315 w/m2
11:00325 w/m2
12:00239 w/m2
13:0083 w/m2
14:0058 w/m2
15:0024 w/m2
Tuesday, December 3
Total: 2003 wh/m2Hours08:0092 w/m2
09:00222 w/m2
10:00304 w/m2
11:00364 w/m2
12:00371 w/m2
13:00325 w/m2
14:00229 w/m2
15:0096 w/m2
Wednesday, December 4
Total: 536 wh/m2Hours08:0022 w/m2
09:0056 w/m2
10:0082 w/m2
11:0095 w/m2
12:0096 w/m2
13:0083 w/m2
14:0069 w/m2
15:0033 w/m2
Thursday, December 5
Total: 2045 wh/m2Hours08:0087 w/m2
09:00222 w/m2
10:00324 w/m2
11:00379 w/m2
12:00380 w/m2
13:00329 w/m2
14:00229 w/m2
15:0095 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.
