Solar radiation in Harpenden 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 15
Total: 978 wh/m2Hours08:0019 w/m2
09:0093 w/m2
10:00142 w/m2
11:00193 w/m2
12:00234 w/m2
13:00208 w/m2
14:0072 w/m2
15:0017 w/m2
Tomorrow, November 16
Total: 472 wh/m2Hours08:004 w/m2
09:0028 w/m2
10:0087 w/m2
11:0064 w/m2
12:0087 w/m2
13:0076 w/m2
14:0089 w/m2
15:0037 w/m2
Sunday, November 17
Total: 1205 wh/m2Hours08:0015 w/m2
09:00106 w/m2
10:00193 w/m2
11:00233 w/m2
12:00238 w/m2
13:00216 w/m2
14:00145 w/m2
15:0059 w/m2
Monday, November 18
Total: 317 wh/m2Hours08:003 w/m2
09:0028 w/m2
10:0048 w/m2
11:0062 w/m2
12:0065 w/m2
13:0057 w/m2
14:0039 w/m2
15:0015 w/m2
Tuesday, November 19
Total: 1007 wh/m2Hours08:004 w/m2
09:0025 w/m2
10:00117 w/m2
11:00204 w/m2
12:00241 w/m2
13:00214 w/m2
14:00147 w/m2
15:0055 w/m2
Wednesday, November 20
Total: 1208 wh/m2Hours08:0010 w/m2
09:0096 w/m2
10:00185 w/m2
11:00240 w/m2
12:00253 w/m2
13:00221 w/m2
14:00149 w/m2
15:0054 w/m2
Thursday, November 21
Total: 1183 wh/m2Hours08:009 w/m2
09:0093 w/m2
10:00181 w/m2
11:00236 w/m2
12:00249 w/m2
13:00217 w/m2
14:00146 w/m2
15:0052 w/m2
Friday, November 22
Total: 1159 wh/m2Hours08:007 w/m2
09:0090 w/m2
10:00177 w/m2
11:00233 w/m2
12:00245 w/m2
13:00214 w/m2
14:00143 w/m2
15:0050 w/m2
Saturday, November 23
Total: 285 wh/m2Hours08:002 w/m2
09:0022 w/m2
10:0043 w/m2
11:0057 w/m2
12:0061 w/m2
13:0053 w/m2
14:0035 w/m2
15:0012 w/m2
Sunday, November 24
Total: 280 wh/m2Hours08:001 w/m2
09:0021 w/m2
10:0043 w/m2
11:0056 w/m2
12:0060 w/m2
13:0052 w/m2
14:0035 w/m2
15:0012 w/m2
Monday, November 25
Total: 321 wh/m2Hours08:002 w/m2
09:0020 w/m2
10:0046 w/m2
11:0067 w/m2
12:0076 w/m2
13:0062 w/m2
14:0037 w/m2
15:0011 w/m2
Tuesday, November 26
Total: 1015 wh/m2Hours08:004 w/m2
09:0077 w/m2
10:00164 w/m2
11:00219 w/m2
12:00233 w/m2
13:00199 w/m2
14:00108 w/m2
15:0011 w/m2
Wednesday, November 27
Total: 894 wh/m2Hours08:001 w/m2
09:0022 w/m2
10:00104 w/m2
11:00186 w/m2
12:00220 w/m2
13:00193 w/m2
14:00128 w/m2
15:0040 w/m2
Thursday, November 28
Total: 259 wh/m2Hours08:001 w/m2
09:0018 w/m2
10:0039 w/m2
11:0053 w/m2
12:0057 w/m2
13:0049 w/m2
14:0032 w/m2
15:0010 w/m2
Friday, November 29
Total: 291 wh/m2Hours09:0017 w/m2
10:0039 w/m2
11:0052 w/m2
12:0056 w/m2
13:0063 w/m2
14:0047 w/m2
15:0017 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.
