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, November 22
Total: 2271 wh/m2Hours06:0026 w/m2
07:0086 w/m2
08:00147 w/m2
09:00201 w/m2
10:00242 w/m2
11:00269 w/m2
12:00278 w/m2
13:00271 w/m2
14:00246 w/m2
15:00226 w/m2
16:00153 w/m2
17:0093 w/m2
18:0033 w/m2
Tomorrow, November 23
Total: 3147 wh/m2Hours06:0033 w/m2
07:00103 w/m2
08:00162 w/m2
09:00201 w/m2
10:00242 w/m2
11:00269 w/m2
12:00279 w/m2
13:00652 w/m2
14:00560 w/m2
15:00324 w/m2
16:00170 w/m2
17:00112 w/m2
18:0040 w/m2
Sunday, November 24
Total: 6167 wh/m2Hours06:0085 w/m2
07:00301 w/m2
08:00498 w/m2
09:00685 w/m2
10:00670 w/m2
11:00512 w/m2
12:00387 w/m2
13:00494 w/m2
14:00744 w/m2
15:00746 w/m2
16:00561 w/m2
17:00360 w/m2
18:00124 w/m2
Monday, November 25
Total: 8915 wh/m2Hours06:0063 w/m2
07:00336 w/m2
08:00578 w/m2
09:00803 w/m2
10:00970 w/m2
11:001076 w/m2
12:001116 w/m2
13:001086 w/m2
14:00988 w/m2
15:00829 w/m2
16:00621 w/m2
17:00379 w/m2
18:0070 w/m2
Tuesday, November 26
Total: 2811 wh/m2Hours06:0024 w/m2
07:00103 w/m2
08:00458 w/m2
09:00221 w/m2
10:00267 w/m2
11:00269 w/m2
12:00279 w/m2
13:00299 w/m2
14:00297 w/m2
15:00269 w/m2
16:00187 w/m2
17:00105 w/m2
18:0033 w/m2
Wednesday, November 27
Total: 2935 wh/m2Hours06:0031 w/m2
07:00111 w/m2
08:00191 w/m2
09:00260 w/m2
10:00337 w/m2
11:00399 w/m2
12:00438 w/m2
13:00378 w/m2
14:00297 w/m2
15:00208 w/m2
16:00156 w/m2
17:0096 w/m2
18:0033 w/m2
Thursday, November 28
Total: 2518 wh/m2Hours06:0049 w/m2
07:00150 w/m2
08:00218 w/m2
09:00241 w/m2
10:00267 w/m2
11:00296 w/m2
12:00280 w/m2
13:00272 w/m2
14:00248 w/m2
15:00209 w/m2
16:00157 w/m2
17:0097 w/m2
18:0034 w/m2
Friday, November 29
Total: 2782 wh/m2Hours06:0031 w/m2
07:00127 w/m2
08:00244 w/m2
09:00349 w/m2
10:00381 w/m2
11:00349 w/m2
12:00280 w/m2
13:00273 w/m2
14:00249 w/m2
15:00209 w/m2
16:00158 w/m2
17:0097 w/m2
18:0035 w/m2
Saturday, November 30
Total: 2447 wh/m2Hours06:0024 w/m2
07:0086 w/m2
08:00147 w/m2
09:00221 w/m2
10:00267 w/m2
11:00297 w/m2
12:00308 w/m2
13:00300 w/m2
14:00249 w/m2
15:00210 w/m2
16:00174 w/m2
17:00118 w/m2
18:0046 w/m2
Sunday, December 1
Total: 2990 wh/m2Hours06:0024 w/m2
07:0086 w/m2
08:00147 w/m2
09:00201 w/m2
10:00242 w/m2
11:00297 w/m2
12:00308 w/m2
13:00379 w/m2
14:00413 w/m2
15:00400 w/m2
16:00276 w/m2
17:00164 w/m2
18:0053 w/m2
Monday, December 2
Total: 7408 wh/m2Hours06:0052 w/m2
07:00292 w/m2
08:00571 w/m2
09:00801 w/m2
10:00940 w/m2
11:00901 w/m2
12:00555 w/m2
13:00709 w/m2
14:00753 w/m2
15:00712 w/m2
16:00589 w/m2
17:00387 w/m2
18:00146 w/m2
Tuesday, December 3
Total: 5880 wh/m2Hours06:0024 w/m2
07:00103 w/m2
08:00204 w/m2
09:00314 w/m2
10:00773 w/m2
11:001036 w/m2
12:001119 w/m2
13:001044 w/m2
14:00755 w/m2
15:00211 w/m2
16:00160 w/m2
17:00100 w/m2
18:0037 w/m2
Wednesday, December 4
Total: 2395 wh/m2Hours06:0043 w/m2
07:00134 w/m2
08:00190 w/m2
09:00200 w/m2
10:00242 w/m2
11:00270 w/m2
12:00280 w/m2
13:00274 w/m2
14:00250 w/m2
15:00212 w/m2
16:00161 w/m2
17:00101 w/m2
18:0038 w/m2
Thursday, December 5
Total: 2285 wh/m2Hours06:0023 w/m2
07:0085 w/m2
08:00146 w/m2
09:00200 w/m2
10:00242 w/m2
11:00270 w/m2
12:00280 w/m2
13:00274 w/m2
14:00251 w/m2
15:00212 w/m2
16:00161 w/m2
17:00102 w/m2
18:0039 w/m2
Friday, December 6
Total: 2288 wh/m2Hours06:0023 w/m2
07:0085 w/m2
08:00146 w/m2
09:00200 w/m2
10:00242 w/m2
11:00270 w/m2
12:00281 w/m2
13:00274 w/m2
14:00251 w/m2
15:00213 w/m2
16:00162 w/m2
17:00102 w/m2
18:0039 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.
