Solar radiation in Porto 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 30
Total: 1622 wh/m2Hours09:004 w/m2
10:0098 w/m2
11:00194 w/m2
12:00294 w/m2
13:00349 w/m2
14:00158 w/m2
15:00122 w/m2
16:00195 w/m2
17:00166 w/m2
18:0042 w/m2
Tomorrow, January 31
Total: 2884 wh/m2Hours09:007 w/m2
10:00143 w/m2
11:00296 w/m2
12:00414 w/m2
13:00482 w/m2
14:00493 w/m2
15:00447 w/m2
16:00348 w/m2
17:00206 w/m2
18:0048 w/m2
Saturday, February 1
Total: 1481 wh/m2Hours09:002 w/m2
10:0044 w/m2
11:0075 w/m2
12:00105 w/m2
13:00121 w/m2
14:00237 w/m2
15:00381 w/m2
16:00322 w/m2
17:00181 w/m2
18:0013 w/m2
Sunday, February 2
Total: 2204 wh/m2Hours09:002 w/m2
10:0037 w/m2
11:00151 w/m2
12:00209 w/m2
13:00318 w/m2
14:00428 w/m2
15:00437 w/m2
16:00355 w/m2
17:00213 w/m2
18:0054 w/m2
Monday, February 3
Total: 2975 wh/m2Hours09:0011 w/m2
10:00153 w/m2
11:00308 w/m2
12:00427 w/m2
13:00495 w/m2
14:00505 w/m2
15:00455 w/m2
16:00349 w/m2
17:00215 w/m2
18:0057 w/m2
Tuesday, February 4
Total: 1034 wh/m2Hours09:007 w/m2
10:0094 w/m2
11:00155 w/m2
12:00169 w/m2
13:00125 w/m2
14:00141 w/m2
15:00140 w/m2
16:00119 w/m2
17:0067 w/m2
18:0017 w/m2
Wednesday, February 5
Total: 770 wh/m2Hours09:003 w/m2
10:0040 w/m2
11:0079 w/m2
12:00109 w/m2
13:00126 w/m2
14:00129 w/m2
15:00118 w/m2
16:0093 w/m2
17:0057 w/m2
18:0016 w/m2
Thursday, February 6
Total: 2320 wh/m2Hours09:0013 w/m2
10:00150 w/m2
11:00283 w/m2
12:00372 w/m2
13:00406 w/m2
14:00381 w/m2
15:00308 w/m2
16:00200 w/m2
17:00154 w/m2
18:0053 w/m2
Friday, February 7
Total: 2253 wh/m2Hours09:0013 w/m2
10:0054 w/m2
11:00148 w/m2
12:00245 w/m2
13:00333 w/m2
14:00414 w/m2
15:00420 w/m2
16:00357 w/m2
17:00210 w/m2
18:0059 w/m2
Saturday, February 8
Total: 1065 wh/m2Hours09:005 w/m2
10:0043 w/m2
11:0082 w/m2
12:00112 w/m2
13:00143 w/m2
14:00172 w/m2
15:00179 w/m2
16:00159 w/m2
17:00124 w/m2
18:0046 w/m2
Sunday, February 9
Total: 1513 wh/m2Hours09:0018 w/m2
10:00127 w/m2
11:00222 w/m2
12:00274 w/m2
13:00279 w/m2
14:00244 w/m2
15:00170 w/m2
16:0098 w/m2
17:0061 w/m2
18:0020 w/m2
Monday, February 10
Total: 1976 wh/m2Hours09:007 w/m2
10:0045 w/m2
11:00148 w/m2
12:00269 w/m2
13:00366 w/m2
14:00359 w/m2
15:00314 w/m2
16:00238 w/m2
17:00169 w/m2
18:0061 w/m2
Tuesday, February 11
Total: 3339 wh/m2Hours09:0025 w/m2
10:00185 w/m2
11:00344 w/m2
12:00464 w/m2
13:00534 w/m2
14:00546 w/m2
15:00500 w/m2
16:00400 w/m2
17:00255 w/m2
18:0086 w/m2
Wednesday, February 12
Total: 3271 wh/m2Hours09:0021 w/m2
10:00138 w/m2
11:00312 w/m2
12:00456 w/m2
13:00537 w/m2
14:00550 w/m2
15:00504 w/m2
16:00404 w/m2
17:00259 w/m2
18:0090 w/m2
Thursday, February 13
Total: 1325 wh/m2Hours09:0030 w/m2
10:00168 w/m2
11:00263 w/m2
12:00261 w/m2
13:00136 w/m2
14:00139 w/m2
15:00127 w/m2
16:00102 w/m2
17:0073 w/m2
18:0026 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.
