Solar radiation in Keelung 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 21
Total: 1448 wh/m2Hours07:0016 w/m2
08:0074 w/m2
09:00129 w/m2
10:00173 w/m2
11:00201 w/m2
12:00213 w/m2
13:00206 w/m2
14:00181 w/m2
15:00140 w/m2
16:0087 w/m2
17:0028 w/m2
Tomorrow, February 22
Total: 1457 wh/m2Hours07:0017 w/m2
08:0075 w/m2
09:00130 w/m2
10:00174 w/m2
11:00202 w/m2
12:00213 w/m2
13:00206 w/m2
14:00182 w/m2
15:00141 w/m2
16:0088 w/m2
17:0029 w/m2
Sunday, February 23
Total: 1467 wh/m2Hours07:0018 w/m2
08:0076 w/m2
09:00131 w/m2
10:00175 w/m2
11:00203 w/m2
12:00214 w/m2
13:00207 w/m2
14:00182 w/m2
15:00142 w/m2
16:0089 w/m2
17:0030 w/m2
Monday, February 24
Total: 1474 wh/m2Hours07:0018 w/m2
08:0077 w/m2
09:00132 w/m2
10:00176 w/m2
11:00204 w/m2
12:00215 w/m2
13:00208 w/m2
14:00183 w/m2
15:00142 w/m2
16:0089 w/m2
17:0030 w/m2
Tuesday, February 25
Total: 3026 wh/m2Hours07:0023 w/m2
08:0093 w/m2
09:00197 w/m2
10:00292 w/m2
11:00520 w/m2
12:00476 w/m2
13:00346 w/m2
14:00364 w/m2
15:00371 w/m2
16:00253 w/m2
17:0091 w/m2
Wednesday, February 26
Total: 2651 wh/m2Hours07:0054 w/m2
08:00130 w/m2
09:00210 w/m2
10:00246 w/m2
11:00247 w/m2
12:00359 w/m2
13:00415 w/m2
14:00419 w/m2
15:00317 w/m2
16:00193 w/m2
17:0061 w/m2
Thursday, February 27
Total: 1942 wh/m2Hours07:0025 w/m2
08:0095 w/m2
09:00174 w/m2
10:00264 w/m2
11:00324 w/m2
12:00302 w/m2
13:00252 w/m2
14:00185 w/m2
15:00159 w/m2
16:00118 w/m2
17:0044 w/m2
Friday, February 28
Total: 2389 wh/m2Hours07:0037 w/m2
08:00165 w/m2
09:00279 w/m2
10:00369 w/m2
11:00411 w/m2
12:00380 w/m2
13:00293 w/m2
14:00186 w/m2
15:00145 w/m2
16:0092 w/m2
17:0032 w/m2
Saturday, March 1
Total: 1516 wh/m2Hours07:0022 w/m2
08:0081 w/m2
09:00137 w/m2
10:00180 w/m2
11:00208 w/m2
12:00219 w/m2
13:00212 w/m2
14:00187 w/m2
15:00146 w/m2
16:0092 w/m2
17:0032 w/m2
Sunday, March 2
Total: 5916 wh/m2Hours07:0064 w/m2
08:00236 w/m2
09:00505 w/m2
10:00716 w/m2
11:00837 w/m2
12:00880 w/m2
13:00848 w/m2
14:00745 w/m2
15:00583 w/m2
16:00370 w/m2
17:00132 w/m2
Monday, March 3
Total: 4710 wh/m2Hours07:0093 w/m2
08:00332 w/m2
09:00549 w/m2
10:00706 w/m2
11:00777 w/m2
12:00753 w/m2
13:00623 w/m2
14:00427 w/m2
15:00279 w/m2
16:00138 w/m2
17:0033 w/m2
Tuesday, March 4
Total: 1603 wh/m2Hours07:0025 w/m2
08:0084 w/m2
09:00139 w/m2
10:00201 w/m2
11:00232 w/m2
12:00244 w/m2
13:00214 w/m2
14:00189 w/m2
15:00147 w/m2
16:0094 w/m2
17:0034 w/m2
Wednesday, March 5
Total: 3646 wh/m2Hours07:0028 w/m2
08:0094 w/m2
09:00195 w/m2
10:00320 w/m2
11:00420 w/m2
12:00521 w/m2
13:00570 w/m2
14:00553 w/m2
15:00484 w/m2
16:00333 w/m2
17:00128 w/m2
Thursday, March 6
Total: 1558 wh/m2Hours07:0026 w/m2
08:0086 w/m2
09:00141 w/m2
10:00185 w/m2
11:00213 w/m2
12:00223 w/m2
13:00215 w/m2
14:00190 w/m2
15:00149 w/m2
16:0095 w/m2
17:0035 w/m2
Friday, March 7
Total: 2492 wh/m2Hours07:0045 w/m2
08:00166 w/m2
09:00271 w/m2
10:00338 w/m2
11:00372 w/m2
12:00371 w/m2
13:00320 w/m2
14:00247 w/m2
15:00193 w/m2
16:00123 w/m2
17:0046 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.
