Solar radiation in Cologne 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 3
Total: 1606 wh/m2Hours09:0062 w/m2
10:00180 w/m2
11:00271 w/m2
12:00317 w/m2
13:00313 w/m2
14:00258 w/m2
15:00161 w/m2
16:0044 w/m2
Tomorrow, January 4
Total: 1337 wh/m2Hours09:0043 w/m2
10:00122 w/m2
11:00188 w/m2
12:00247 w/m2
13:00285 w/m2
14:00253 w/m2
15:00157 w/m2
16:0042 w/m2
Sunday, January 5
Total: 407 wh/m2Hours09:0016 w/m2
10:0045 w/m2
11:0068 w/m2
12:0080 w/m2
13:0079 w/m2
14:0066 w/m2
15:0041 w/m2
16:0012 w/m2
Monday, January 6
Total: 411 wh/m2Hours09:0016 w/m2
10:0046 w/m2
11:0069 w/m2
12:0080 w/m2
13:0080 w/m2
14:0066 w/m2
15:0042 w/m2
16:0012 w/m2
Tuesday, January 7
Total: 438 wh/m2Hours09:0016 w/m2
10:0046 w/m2
11:0069 w/m2
12:0089 w/m2
13:0088 w/m2
14:0074 w/m2
15:0043 w/m2
16:0013 w/m2
Wednesday, January 8
Total: 1583 wh/m2Hours09:0065 w/m2
10:00184 w/m2
11:00277 w/m2
12:00324 w/m2
13:00318 w/m2
14:00250 w/m2
15:00137 w/m2
16:0028 w/m2
Thursday, January 9
Total: 421 wh/m2Hours09:0016 w/m2
10:0046 w/m2
11:0070 w/m2
12:0082 w/m2
13:0081 w/m2
14:0068 w/m2
15:0044 w/m2
16:0014 w/m2
Friday, January 10
Total: 1706 wh/m2Hours09:0066 w/m2
10:00187 w/m2
11:00281 w/m2
12:00330 w/m2
13:00328 w/m2
14:00276 w/m2
15:00179 w/m2
16:0059 w/m2
Saturday, January 11
Total: 1130 wh/m2Hours09:0019 w/m2
10:0047 w/m2
11:00135 w/m2
12:00220 w/m2
13:00261 w/m2
14:00233 w/m2
15:00160 w/m2
16:0055 w/m2
Sunday, January 12
Total: 579 wh/m2Hours09:0022 w/m2
10:0048 w/m2
11:0078 w/m2
12:0092 w/m2
13:00100 w/m2
14:00111 w/m2
15:0092 w/m2
16:0036 w/m2
Monday, January 13
Total: 1762 wh/m2Hours09:0070 w/m2
10:00192 w/m2
11:00287 w/m2
12:00337 w/m2
13:00336 w/m2
14:00285 w/m2
15:00189 w/m2
16:0066 w/m2
Tuesday, January 14
Total: 1783 wh/m2Hours09:0071 w/m2
10:00194 w/m2
11:00289 w/m2
12:00340 w/m2
13:00340 w/m2
14:00288 w/m2
15:00192 w/m2
16:0069 w/m2
Wednesday, January 15
Total: 1795 wh/m2Hours09:0072 w/m2
10:00195 w/m2
11:00291 w/m2
12:00340 w/m2
13:00339 w/m2
14:00291 w/m2
15:00195 w/m2
16:0072 w/m2
Thursday, January 16
Total: 1675 wh/m2Hours09:0048 w/m2
10:00119 w/m2
11:00255 w/m2
12:00338 w/m2
13:00346 w/m2
14:00295 w/m2
15:00199 w/m2
16:0075 w/m2
Friday, January 17
Total: 784 wh/m2Hours09:0019 w/m2
10:0050 w/m2
11:0082 w/m2
12:00104 w/m2
13:00113 w/m2
14:00184 w/m2
15:00161 w/m2
16:0071 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.