Solar radiation in Sitka 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, February 18
Total: 854 wh/m2Hours08:0013 w/m2
09:0057 w/m2
10:00106 w/m2
11:00145 w/m2
12:00160 w/m2
13:00148 w/m2
14:00119 w/m2
15:0077 w/m2
16:0029 w/m2
Tomorrow, February 19
Total: 890 wh/m2Hours08:0013 w/m2
09:0060 w/m2
10:00104 w/m2
11:00141 w/m2
12:00156 w/m2
13:00151 w/m2
14:00133 w/m2
15:0092 w/m2
16:0039 w/m2
17:001 w/m2
Thursday, February 20
Total: 740 wh/m2Hours08:0011 w/m2
09:0050 w/m2
10:0085 w/m2
11:00117 w/m2
12:00129 w/m2
13:00125 w/m2
14:00112 w/m2
15:0078 w/m2
16:0032 w/m2
17:001 w/m2
Friday, February 21
Total: 688 wh/m2Hours08:0012 w/m2
09:0048 w/m2
10:0082 w/m2
11:00105 w/m2
12:00115 w/m2
13:00120 w/m2
14:00102 w/m2
15:0071 w/m2
16:0032 w/m2
17:001 w/m2
Saturday, February 22
Total: 683 wh/m2Hours08:0013 w/m2
09:0050 w/m2
10:0084 w/m2
11:00107 w/m2
12:00117 w/m2
13:00114 w/m2
14:0097 w/m2
15:0068 w/m2
16:0031 w/m2
17:002 w/m2
Sunday, February 23
Total: 668 wh/m2Hours08:0015 w/m2
09:0052 w/m2
10:0086 w/m2
11:00109 w/m2
12:00110 w/m2
13:00107 w/m2
14:0091 w/m2
15:0065 w/m2
16:0031 w/m2
17:002 w/m2
Monday, February 24
Total: 768 wh/m2Hours08:0018 w/m2
09:0058 w/m2
10:0094 w/m2
11:00119 w/m2
12:00130 w/m2
13:00126 w/m2
14:00108 w/m2
15:0077 w/m2
16:0035 w/m2
17:003 w/m2
Tuesday, February 25
Total: 914 wh/m2Hours08:0023 w/m2
09:0076 w/m2
10:00115 w/m2
11:00145 w/m2
12:00149 w/m2
13:00145 w/m2
14:00124 w/m2
15:0089 w/m2
16:0044 w/m2
17:004 w/m2
Wednesday, February 26
Total: 815 wh/m2Hours08:0020 w/m2
09:0058 w/m2
10:0092 w/m2
11:00124 w/m2
12:00135 w/m2
13:00131 w/m2
14:00120 w/m2
15:0086 w/m2
16:0044 w/m2
17:005 w/m2
Thursday, February 27
Total: 817 wh/m2Hours08:0027 w/m2
09:0077 w/m2
10:00114 w/m2
11:00134 w/m2
12:00137 w/m2
13:00124 w/m2
14:0099 w/m2
15:0066 w/m2
16:0034 w/m2
17:005 w/m2
Friday, February 28
Total: 856 wh/m2Hours08:0023 w/m2
09:0062 w/m2
10:0096 w/m2
11:00128 w/m2
12:00139 w/m2
13:00135 w/m2
14:00124 w/m2
15:0091 w/m2
16:0051 w/m2
17:007 w/m2
Saturday, March 1
Total: 1433 wh/m2Hours08:0027 w/m2
09:0078 w/m2
10:00162 w/m2
11:00244 w/m2
12:00307 w/m2
13:00262 w/m2
14:00188 w/m2
15:00104 w/m2
16:0053 w/m2
17:008 w/m2
Sunday, March 2
Total: 2567 wh/m2Hours07:001 w/m2
08:0083 w/m2
09:00206 w/m2
10:00311 w/m2
11:00382 w/m2
12:00413 w/m2
13:00402 w/m2
14:00348 w/m2
15:00257 w/m2
16:00140 w/m2
17:0024 w/m2
Monday, March 3
Total: 2629 wh/m2Hours07:002 w/m2
08:0089 w/m2
09:00213 w/m2
10:00318 w/m2
11:00389 w/m2
12:00420 w/m2
13:00408 w/m2
14:00354 w/m2
15:00263 w/m2
16:00145 w/m2
17:0028 w/m2
Tuesday, March 4
Total: 2685 wh/m2Hours07:003 w/m2
08:0095 w/m2
09:00219 w/m2
10:00324 w/m2
11:00395 w/m2
12:00425 w/m2
13:00414 w/m2
14:00360 w/m2
15:00269 w/m2
16:00150 w/m2
17:0031 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.
