Solar radiation in Viana do Castelo 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 22
Total: 2070 wh/m2Hours08:0018 w/m2
09:00132 w/m2
10:00299 w/m2
11:00387 w/m2
12:00281 w/m2
13:00335 w/m2
14:00323 w/m2
15:00201 w/m2
16:0093 w/m2
17:001 w/m2
Tomorrow, November 23
Total: 1591 wh/m2Hours08:005 w/m2
09:0043 w/m2
10:00178 w/m2
11:00104 w/m2
12:00327 w/m2
13:00359 w/m2
14:00317 w/m2
15:00213 w/m2
16:0044 w/m2
17:001 w/m2
Sunday, November 24
Total: 660 wh/m2Hours08:005 w/m2
09:0042 w/m2
10:0085 w/m2
11:00103 w/m2
12:00115 w/m2
13:00113 w/m2
14:0097 w/m2
15:0069 w/m2
16:0031 w/m2
Monday, November 25
Total: 1789 wh/m2Hours08:0014 w/m2
09:00148 w/m2
10:00269 w/m2
11:00341 w/m2
12:00365 w/m2
13:00311 w/m2
14:00206 w/m2
15:0095 w/m2
16:0040 w/m2
Tuesday, November 26
Total: 2550 wh/m2Hours08:0015 w/m2
09:00155 w/m2
10:00299 w/m2
11:00403 w/m2
12:00454 w/m2
13:00447 w/m2
14:00383 w/m2
15:00271 w/m2
16:00122 w/m2
17:001 w/m2
Wednesday, November 27
Total: 2493 wh/m2Hours08:0013 w/m2
09:00148 w/m2
10:00287 w/m2
11:00389 w/m2
12:00442 w/m2
13:00441 w/m2
14:00381 w/m2
15:00270 w/m2
16:00121 w/m2
17:001 w/m2
Thursday, November 28
Total: 1325 wh/m2Hours08:009 w/m2
09:00111 w/m2
10:00205 w/m2
11:00259 w/m2
12:00270 w/m2
13:00219 w/m2
14:00149 w/m2
15:0067 w/m2
16:0036 w/m2
Friday, November 29
Total: 973 wh/m2Hours08:003 w/m2
09:0038 w/m2
10:0088 w/m2
11:00128 w/m2
12:00165 w/m2
13:00172 w/m2
14:00157 w/m2
15:00121 w/m2
16:00100 w/m2
17:001 w/m2
Saturday, November 30
Total: 1727 wh/m2Hours08:005 w/m2
09:0082 w/m2
10:00212 w/m2
11:00335 w/m2
12:00414 w/m2
13:00358 w/m2
14:00226 w/m2
15:0066 w/m2
16:0029 w/m2
Sunday, December 1
Total: 615 wh/m2Hours08:002 w/m2
09:0036 w/m2
10:0072 w/m2
11:0097 w/m2
12:00110 w/m2
13:00109 w/m2
14:0094 w/m2
15:0066 w/m2
16:0029 w/m2
Monday, December 2
Total: 822 wh/m2Hours08:005 w/m2
09:0094 w/m2
10:00157 w/m2
11:00160 w/m2
12:00110 w/m2
13:00108 w/m2
14:0093 w/m2
15:0066 w/m2
16:0029 w/m2
Tuesday, December 3
Total: 655 wh/m2Hours08:002 w/m2
09:0035 w/m2
10:0070 w/m2
11:00106 w/m2
12:00120 w/m2
13:00119 w/m2
14:00102 w/m2
15:0072 w/m2
16:0029 w/m2
Wednesday, December 4
Total: 2141 wh/m2Hours08:006 w/m2
09:00137 w/m2
10:00279 w/m2
11:00382 w/m2
12:00434 w/m2
13:00421 w/m2
14:00312 w/m2
15:00113 w/m2
16:0057 w/m2
Thursday, December 5
Total: 2399 wh/m2Hours08:005 w/m2
09:00134 w/m2
10:00277 w/m2
11:00380 w/m2
12:00432 w/m2
13:00428 w/m2
14:00369 w/m2
15:00260 w/m2
16:00113 w/m2
17:001 w/m2
Friday, December 6
Total: 670 wh/m2Hours08:003 w/m2
09:0054 w/m2
10:00101 w/m2
11:00113 w/m2
12:00107 w/m2
13:00107 w/m2
14:0092 w/m2
15:0065 w/m2
16:0028 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.
