Solar radiation in Colombo 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 2
Total: 4449 wh/m2Hours07:0019 w/m2
08:00155 w/m2
09:00300 w/m2
10:00576 w/m2
11:00759 w/m2
12:00635 w/m2
13:00516 w/m2
14:00764 w/m2
15:00494 w/m2
16:00158 w/m2
17:0072 w/m2
18:001 w/m2
Tomorrow, April 3
Total: 2394 wh/m2Hours07:0047 w/m2
08:00100 w/m2
09:00183 w/m2
10:00204 w/m2
11:00510 w/m2
12:00492 w/m2
13:00316 w/m2
14:00231 w/m2
15:00156 w/m2
16:00106 w/m2
17:0048 w/m2
18:001 w/m2
Friday, April 4
Total: 2848 wh/m2Hours07:0029 w/m2
08:00170 w/m2
09:00204 w/m2
10:00169 w/m2
11:00221 w/m2
12:00215 w/m2
13:00482 w/m2
14:00603 w/m2
15:00466 w/m2
16:00223 w/m2
17:0065 w/m2
18:001 w/m2
Saturday, April 5
Total: 2823 wh/m2Hours07:0020 w/m2
08:0080 w/m2
09:00135 w/m2
10:00446 w/m2
11:00529 w/m2
12:00390 w/m2
13:00349 w/m2
14:00377 w/m2
15:00267 w/m2
16:00162 w/m2
17:0067 w/m2
18:001 w/m2
Sunday, April 6
Total: 2989 wh/m2Hours07:0011 w/m2
08:0073 w/m2
09:00146 w/m2
10:00277 w/m2
11:00362 w/m2
12:00513 w/m2
13:00669 w/m2
14:00442 w/m2
15:00252 w/m2
16:00169 w/m2
17:0074 w/m2
18:001 w/m2
Monday, April 7
Total: 5137 wh/m2Hours07:0020 w/m2
08:00165 w/m2
09:00365 w/m2
10:00577 w/m2
11:00737 w/m2
12:00826 w/m2
13:00789 w/m2
14:00677 w/m2
15:00504 w/m2
16:00334 w/m2
17:00142 w/m2
18:001 w/m2
Tuesday, April 8
Total: 3489 wh/m2Hours07:0025 w/m2
08:00172 w/m2
09:00345 w/m2
10:00429 w/m2
11:00460 w/m2
12:00418 w/m2
13:00427 w/m2
14:00397 w/m2
15:00340 w/m2
16:00318 w/m2
17:00157 w/m2
18:001 w/m2
Wednesday, April 9
Total: 3929 wh/m2Hours07:0032 w/m2
08:00190 w/m2
09:00302 w/m2
10:00481 w/m2
11:00624 w/m2
12:00721 w/m2
13:00632 w/m2
14:00469 w/m2
15:00270 w/m2
16:00155 w/m2
17:0053 w/m2
Thursday, April 10
Total: 4309 wh/m2Hours07:0013 w/m2
08:00100 w/m2
09:00206 w/m2
10:00361 w/m2
11:00504 w/m2
12:00620 w/m2
13:00705 w/m2
14:00687 w/m2
15:00573 w/m2
16:00382 w/m2
17:00158 w/m2
Friday, April 11
Total: 1633 wh/m2Hours07:0017 w/m2
08:00109 w/m2
09:00174 w/m2
10:00226 w/m2
11:00232 w/m2
12:00207 w/m2
13:00204 w/m2
14:00183 w/m2
15:00146 w/m2
16:0096 w/m2
17:0039 w/m2
Saturday, April 12
Total: 2928 wh/m2Hours07:0025 w/m2
08:00212 w/m2
09:00435 w/m2
10:00523 w/m2
11:00463 w/m2
12:00227 w/m2
13:00243 w/m2
14:00235 w/m2
15:00201 w/m2
16:00241 w/m2
17:00123 w/m2
Sunday, April 13
Total: 2296 wh/m2Hours07:008 w/m2
08:0062 w/m2
09:00116 w/m2
10:00161 w/m2
11:00191 w/m2
12:00205 w/m2
13:00333 w/m2
14:00397 w/m2
15:00380 w/m2
16:00307 w/m2
17:00136 w/m2
Monday, April 14
Total: 2343 wh/m2Hours07:0020 w/m2
08:00187 w/m2
09:00401 w/m2
10:00475 w/m2
11:00406 w/m2
12:00204 w/m2
13:00200 w/m2
14:00179 w/m2
15:00142 w/m2
16:0093 w/m2
17:0036 w/m2
Tuesday, April 15
Total: 2172 wh/m2Hours07:008 w/m2
08:0060 w/m2
09:00115 w/m2
10:00159 w/m2
11:00189 w/m2
12:00203 w/m2
13:00312 w/m2
14:00352 w/m2
15:00339 w/m2
16:00302 w/m2
17:00133 w/m2
Wednesday, April 16
Total: 2584 wh/m2Hours07:0010 w/m2
08:0078 w/m2
09:00148 w/m2
10:00234 w/m2
11:00312 w/m2
12:00368 w/m2
13:00407 w/m2
14:00414 w/m2
15:00363 w/m2
16:00193 w/m2
17:0057 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.
