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, January 28
Total: 2616 wh/m2Hours08:0071 w/m2
09:00214 w/m2
10:00349 w/m2
11:00439 w/m2
12:00468 w/m2
13:00438 w/m2
14:00352 w/m2
15:00220 w/m2
16:0065 w/m2
Tomorrow, January 29
Total: 1107 wh/m2Hours08:0027 w/m2
09:0076 w/m2
10:00113 w/m2
11:00168 w/m2
12:00207 w/m2
13:00219 w/m2
14:00170 w/m2
15:0098 w/m2
16:0029 w/m2
Thursday, January 30
Total: 2789 wh/m2Hours08:00101 w/m2
09:00256 w/m2
10:00381 w/m2
11:00458 w/m2
12:00481 w/m2
13:00448 w/m2
14:00361 w/m2
15:00230 w/m2
16:0073 w/m2
Friday, January 31
Total: 1927 wh/m2Hours08:00103 w/m2
09:00252 w/m2
10:00363 w/m2
11:00398 w/m2
12:00342 w/m2
13:00215 w/m2
14:00152 w/m2
15:0081 w/m2
16:0021 w/m2
Saturday, February 1
Total: 2862 wh/m2Hours08:00107 w/m2
09:00263 w/m2
10:00388 w/m2
11:00466 w/m2
12:00490 w/m2
13:00457 w/m2
14:00371 w/m2
15:00239 w/m2
16:0081 w/m2
Sunday, February 2
Total: 2161 wh/m2Hours08:0097 w/m2
09:00227 w/m2
10:00322 w/m2
11:00372 w/m2
12:00368 w/m2
13:00326 w/m2
14:00250 w/m2
15:00151 w/m2
16:0048 w/m2
Monday, February 3
Total: 2033 wh/m2Hours08:0065 w/m2
09:00164 w/m2
10:00253 w/m2
11:00316 w/m2
12:00346 w/m2
13:00336 w/m2
14:00288 w/m2
15:00193 w/m2
16:0072 w/m2
Tuesday, February 4
Total: 2978 wh/m2Hours07:001 w/m2
08:00118 w/m2
09:00276 w/m2
10:00401 w/m2
11:00479 w/m2
12:00504 w/m2
13:00471 w/m2
14:00384 w/m2
15:00252 w/m2
16:0092 w/m2
Wednesday, February 5
Total: 2947 wh/m2Hours07:001 w/m2
08:00120 w/m2
09:00277 w/m2
10:00401 w/m2
11:00477 w/m2
12:00498 w/m2
13:00462 w/m2
14:00375 w/m2
15:00245 w/m2
16:0091 w/m2
Thursday, February 6
Total: 2686 wh/m2Hours07:001 w/m2
08:00106 w/m2
09:00242 w/m2
10:00352 w/m2
11:00427 w/m2
12:00452 w/m2
13:00426 w/m2
14:00353 w/m2
15:00236 w/m2
16:0091 w/m2
Friday, February 7
Total: 2521 wh/m2Hours07:002 w/m2
08:00106 w/m2
09:00235 w/m2
10:00338 w/m2
11:00402 w/m2
12:00421 w/m2
13:00395 w/m2
14:00325 w/m2
15:00214 w/m2
16:0083 w/m2
Saturday, February 8
Total: 2711 wh/m2Hours07:002 w/m2
08:00108 w/m2
09:00236 w/m2
10:00342 w/m2
11:00411 w/m2
12:00435 w/m2
13:00408 w/m2
14:00387 w/m2
15:00272 w/m2
16:00110 w/m2
Sunday, February 9
Total: 3216 wh/m2Hours07:004 w/m2
08:00140 w/m2
09:00301 w/m2
10:00429 w/m2
11:00508 w/m2
12:00532 w/m2
13:00498 w/m2
14:00412 w/m2
15:00278 w/m2
16:00114 w/m2
Monday, February 10
Total: 815 wh/m2Hours07:001 w/m2
08:0036 w/m2
09:0077 w/m2
10:00108 w/m2
11:00128 w/m2
12:00134 w/m2
13:00126 w/m2
14:00104 w/m2
15:0071 w/m2
16:0030 w/m2
Tuesday, February 11
Total: 829 wh/m2Hours07:002 w/m2
08:0037 w/m2
09:0078 w/m2
10:00110 w/m2
11:00130 w/m2
12:00136 w/m2
13:00127 w/m2
14:00106 w/m2
15:0072 w/m2
16:0031 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.
