Solar radiation in Japons 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 14
Total: 1593 wh/m2Hours08:0034 w/m2
09:00143 w/m2
10:00247 w/m2
11:00328 w/m2
12:00319 w/m2
13:00271 w/m2
14:00167 w/m2
15:0082 w/m2
16:002 w/m2
Tomorrow, November 15
Total: 941 wh/m2Hours08:0015 w/m2
09:0051 w/m2
10:0074 w/m2
11:00143 w/m2
12:00224 w/m2
13:00222 w/m2
14:00143 w/m2
15:0067 w/m2
16:002 w/m2
Saturday, November 16
Total: 1155 wh/m2Hours08:0012 w/m2
09:0046 w/m2
10:00126 w/m2
11:00287 w/m2
12:00281 w/m2
13:00229 w/m2
14:00127 w/m2
15:0046 w/m2
16:001 w/m2
Sunday, November 17
Total: 1668 wh/m2Hours08:0044 w/m2
09:00162 w/m2
10:00261 w/m2
11:00319 w/m2
12:00326 w/m2
13:00283 w/m2
14:00193 w/m2
15:0078 w/m2
16:002 w/m2
Monday, November 18
Total: 497 wh/m2Hours08:0011 w/m2
09:0040 w/m2
10:0064 w/m2
11:0079 w/m2
12:0081 w/m2
13:0079 w/m2
14:0089 w/m2
15:0053 w/m2
16:001 w/m2
Tuesday, November 19
Total: 1594 wh/m2Hours08:0037 w/m2
09:00149 w/m2
10:00248 w/m2
11:00307 w/m2
12:00319 w/m2
13:00282 w/m2
14:00188 w/m2
15:0064 w/m2
Wednesday, November 20
Total: 1617 wh/m2Hours08:0037 w/m2
09:00150 w/m2
10:00246 w/m2
11:00305 w/m2
12:00317 w/m2
13:00280 w/m2
14:00197 w/m2
15:0084 w/m2
16:001 w/m2
Thursday, November 21
Total: 1406 wh/m2Hours08:0018 w/m2
09:00106 w/m2
10:00209 w/m2
11:00273 w/m2
12:00296 w/m2
13:00267 w/m2
14:00175 w/m2
15:0062 w/m2
Friday, November 22
Total: 681 wh/m2Hours08:008 w/m2
09:0036 w/m2
10:0060 w/m2
11:00104 w/m2
12:00142 w/m2
13:00146 w/m2
14:00125 w/m2
15:0059 w/m2
16:001 w/m2
Saturday, November 23
Total: 387 wh/m2Hours08:007 w/m2
09:0035 w/m2
10:0059 w/m2
11:0074 w/m2
12:0077 w/m2
13:0068 w/m2
14:0047 w/m2
15:0020 w/m2
Sunday, November 24
Total: 662 wh/m2Hours08:0013 w/m2
09:0077 w/m2
10:00152 w/m2
11:00161 w/m2
12:00126 w/m2
13:0067 w/m2
14:0047 w/m2
15:0019 w/m2
Monday, November 25
Total: 392 wh/m2Hours08:007 w/m2
09:0033 w/m2
10:0058 w/m2
11:0072 w/m2
12:0075 w/m2
13:0066 w/m2
14:0055 w/m2
15:0026 w/m2
Tuesday, November 26
Total: 518 wh/m2Hours08:006 w/m2
09:0032 w/m2
10:0057 w/m2
11:0092 w/m2
12:00117 w/m2
13:00119 w/m2
14:0071 w/m2
15:0024 w/m2
Wednesday, November 27
Total: 1336 wh/m2Hours08:0011 w/m2
09:0091 w/m2
10:00190 w/m2
11:00262 w/m2
12:00287 w/m2
13:00257 w/m2
14:00174 w/m2
15:0064 w/m2
Thursday, November 28
Total: 765 wh/m2Hours08:005 w/m2
09:0037 w/m2
10:0076 w/m2
11:00138 w/m2
12:00180 w/m2
13:00184 w/m2
14:00110 w/m2
15:0035 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.
