Solar radiation in Saint Helens 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, December 18
Total: 319 wh/m2Hours09:004 w/m2
10:0026 w/m2
11:0081 w/m2
12:00126 w/m2
13:0043 w/m2
14:0031 w/m2
15:008 w/m2
Tomorrow, December 19
Total: 616 wh/m2Hours09:0010 w/m2
10:0070 w/m2
11:0089 w/m2
12:00166 w/m2
13:00149 w/m2
14:00102 w/m2
15:0030 w/m2
Friday, December 20
Total: 192 wh/m2Hours09:003 w/m2
10:0021 w/m2
11:0037 w/m2
12:0043 w/m2
13:0040 w/m2
14:0026 w/m2
15:0022 w/m2
Saturday, December 21
Total: 361 wh/m2Hours09:006 w/m2
10:0044 w/m2
11:00122 w/m2
12:00110 w/m2
13:0044 w/m2
14:0027 w/m2
15:008 w/m2
Sunday, December 22
Total: 294 wh/m2Hours09:0010 w/m2
10:0052 w/m2
11:0067 w/m2
12:0043 w/m2
13:0055 w/m2
14:0049 w/m2
15:0018 w/m2
Monday, December 23
Total: 245 wh/m2Hours09:009 w/m2
10:0048 w/m2
11:0064 w/m2
12:0048 w/m2
13:0040 w/m2
14:0027 w/m2
15:009 w/m2
Tuesday, December 24
Total: 303 wh/m2Hours09:003 w/m2
10:0023 w/m2
11:0040 w/m2
12:0052 w/m2
13:0083 w/m2
14:0074 w/m2
15:0028 w/m2
Wednesday, December 25
Total: 404 wh/m2Hours09:0012 w/m2
10:0075 w/m2
11:00107 w/m2
12:0076 w/m2
13:0070 w/m2
14:0048 w/m2
15:0016 w/m2
Thursday, December 26
Total: 731 wh/m2Hours09:0012 w/m2
10:0084 w/m2
11:00147 w/m2
12:00176 w/m2
13:00163 w/m2
14:00112 w/m2
15:0037 w/m2
Friday, December 27
Total: 737 wh/m2Hours09:0012 w/m2
10:0084 w/m2
11:00148 w/m2
12:00177 w/m2
13:00164 w/m2
14:00114 w/m2
15:0038 w/m2
Saturday, December 28
Total: 741 wh/m2Hours09:0012 w/m2
10:0084 w/m2
11:00148 w/m2
12:00177 w/m2
13:00165 w/m2
14:00115 w/m2
15:0040 w/m2
Sunday, December 29
Total: 500 wh/m2Hours09:0012 w/m2
10:0083 w/m2
11:00125 w/m2
12:0074 w/m2
13:0095 w/m2
14:0079 w/m2
15:0032 w/m2
Monday, December 30
Total: 251 wh/m2Hours09:003 w/m2
10:0021 w/m2
11:0038 w/m2
12:0045 w/m2
13:0063 w/m2
14:0057 w/m2
15:0024 w/m2
Tuesday, December 31
Total: 192 wh/m2Hours09:003 w/m2
10:0022 w/m2
11:0038 w/m2
12:0045 w/m2
13:0043 w/m2
14:0030 w/m2
15:0011 w/m2
Wednesday, January 1
Total: 195 wh/m2Hours09:003 w/m2
10:0022 w/m2
11:0038 w/m2
12:0046 w/m2
13:0043 w/m2
14:0031 w/m2
15:0012 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.
