Solar radiation in Helsinki-Malmi 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, April 22
Total: 1453 wh/m2Hours06:003 w/m2
07:0022 w/m2
08:0055 w/m2
09:0089 w/m2
10:00119 w/m2
11:00143 w/m2
12:00160 w/m2
13:00168 w/m2
14:00166 w/m2
15:00155 w/m2
16:00135 w/m2
17:00108 w/m2
18:0076 w/m2
19:0042 w/m2
20:0012 w/m2
Tomorrow, April 23
Total: 1737 wh/m2Hours06:002 w/m2
07:0048 w/m2
08:00103 w/m2
09:00125 w/m2
10:00156 w/m2
11:00159 w/m2
12:00161 w/m2
13:00186 w/m2
14:00167 w/m2
15:00172 w/m2
16:00136 w/m2
17:00120 w/m2
18:00107 w/m2
19:0068 w/m2
20:0027 w/m2
Thursday, April 24
Total: 5365 wh/m2Hours06:003 w/m2
07:0064 w/m2
08:00227 w/m2
09:00365 w/m2
10:00486 w/m2
11:00584 w/m2
12:00646 w/m2
13:00668 w/m2
14:00632 w/m2
15:00519 w/m2
16:00408 w/m2
17:00352 w/m2
18:00233 w/m2
19:00130 w/m2
20:0048 w/m2
Friday, April 25
Total: 4580 wh/m2Hours06:006 w/m2
07:0097 w/m2
08:00235 w/m2
09:00371 w/m2
10:00484 w/m2
11:00511 w/m2
12:00312 w/m2
13:00389 w/m2
14:00429 w/m2
15:00446 w/m2
16:00424 w/m2
17:00369 w/m2
18:00277 w/m2
19:00173 w/m2
20:0057 w/m2
Saturday, April 26
Total: 5217 wh/m2Hours06:005 w/m2
07:0092 w/m2
08:00238 w/m2
09:00376 w/m2
10:00496 w/m2
11:00583 w/m2
12:00613 w/m2
13:00644 w/m2
14:00640 w/m2
15:00600 w/m2
16:00466 w/m2
17:00285 w/m2
18:0097 w/m2
19:0061 w/m2
20:0021 w/m2
Sunday, April 27
Total: 5532 wh/m2Hours06:0013 w/m2
07:00113 w/m2
08:00247 w/m2
09:00381 w/m2
10:00502 w/m2
11:00598 w/m2
12:00664 w/m2
13:00689 w/m2
14:00649 w/m2
15:00524 w/m2
16:00437 w/m2
17:00327 w/m2
18:00217 w/m2
19:00127 w/m2
20:0044 w/m2
Monday, April 28
Total: 1853 wh/m2Hours06:004 w/m2
07:0033 w/m2
08:0082 w/m2
09:00134 w/m2
10:00176 w/m2
11:00209 w/m2
12:00232 w/m2
13:00226 w/m2
14:00190 w/m2
15:00161 w/m2
16:00142 w/m2
17:00115 w/m2
18:0083 w/m2
19:0049 w/m2
20:0017 w/m2
Tuesday, April 29
Total: 2894 wh/m2Hours06:005 w/m2
07:0040 w/m2
08:00107 w/m2
09:00186 w/m2
10:00212 w/m2
11:00211 w/m2
12:00185 w/m2
13:00193 w/m2
14:00174 w/m2
15:00162 w/m2
16:00395 w/m2
17:00418 w/m2
18:00331 w/m2
19:00200 w/m2
20:0073 w/m2
21:002 w/m2
Wednesday, April 30
Total: 4063 wh/m2Hours06:0021 w/m2
07:00128 w/m2
08:00262 w/m2
09:00396 w/m2
10:00500 w/m2
11:00475 w/m2
12:00169 w/m2
13:00194 w/m2
14:00192 w/m2
15:00196 w/m2
16:00452 w/m2
17:00453 w/m2
18:00341 w/m2
19:00205 w/m2
20:0077 w/m2
21:002 w/m2
Thursday, May 1
Total: 2985 wh/m2Hours06:0024 w/m2
07:00133 w/m2
08:00267 w/m2
09:00401 w/m2
10:00506 w/m2
11:00485 w/m2
12:00170 w/m2
13:00178 w/m2
14:00176 w/m2
15:00164 w/m2
16:00145 w/m2
17:00118 w/m2
18:0086 w/m2
19:0087 w/m2
20:0043 w/m2
21:002 w/m2
Friday, May 2
Total: 2098 wh/m2Hours06:0015 w/m2
07:0063 w/m2
08:00101 w/m2
09:00101 w/m2
10:00131 w/m2
11:00171 w/m2
12:00189 w/m2
13:00214 w/m2
14:00229 w/m2
15:00230 w/m2
16:00216 w/m2
17:00187 w/m2
18:00145 w/m2
19:0079 w/m2
20:0026 w/m2
21:001 w/m2
Saturday, May 3
Total: 6524 wh/m2Hours06:0030 w/m2
07:00142 w/m2
08:00277 w/m2
09:00410 w/m2
10:00529 w/m2
11:00624 w/m2
12:00689 w/m2
13:00718 w/m2
14:00710 w/m2
15:00665 w/m2
16:00586 w/m2
17:00479 w/m2
18:00353 w/m2
19:00218 w/m2
20:0089 w/m2
21:005 w/m2
Sunday, May 4
Total: 4405 wh/m2Hours06:0034 w/m2
07:00147 w/m2
08:00281 w/m2
09:00414 w/m2
10:00531 w/m2
11:00607 w/m2
12:00611 w/m2
13:00553 w/m2
14:00418 w/m2
15:00216 w/m2
16:00191 w/m2
17:00168 w/m2
18:00132 w/m2
19:0072 w/m2
20:0028 w/m2
21:002 w/m2
Monday, May 5
Total: 2846 wh/m2Hours06:009 w/m2
07:0038 w/m2
08:0071 w/m2
09:00105 w/m2
10:00134 w/m2
11:00158 w/m2
12:00174 w/m2
13:00285 w/m2
14:00355 w/m2
15:00394 w/m2
16:00367 w/m2
17:00324 w/m2
18:00250 w/m2
19:00133 w/m2
20:0046 w/m2
21:003 w/m2
Tuesday, May 6
Total: 4198 wh/m2Hours06:0011 w/m2
07:0064 w/m2
08:00160 w/m2
09:00281 w/m2
10:00415 w/m2
11:00542 w/m2
12:00640 w/m2
13:00596 w/m2
14:00478 w/m2
15:00294 w/m2
16:00247 w/m2
17:00193 w/m2
18:00143 w/m2
19:0090 w/m2
20:0040 w/m2
21:004 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.
