Solar radiation in Singapore / Changi Airport 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: 1660 wh/m2Hours07:001 w/m2
08:0084 w/m2
09:00104 w/m2
10:00158 w/m2
11:00200 w/m2
12:00225 w/m2
13:00231 w/m2
14:00219 w/m2
15:00188 w/m2
16:00142 w/m2
17:0084 w/m2
18:0024 w/m2
Tomorrow, November 23
Total: 1613 wh/m2Hours08:0042 w/m2
09:00103 w/m2
10:00158 w/m2
11:00199 w/m2
12:00224 w/m2
13:00231 w/m2
14:00218 w/m2
15:00188 w/m2
16:00142 w/m2
17:0084 w/m2
18:0024 w/m2
Sunday, November 24
Total: 1678 wh/m2Hours08:0042 w/m2
09:00103 w/m2
10:00157 w/m2
11:00199 w/m2
12:00224 w/m2
13:00231 w/m2
14:00262 w/m2
15:00188 w/m2
16:00142 w/m2
17:0084 w/m2
18:0046 w/m2
Monday, November 25
Total: 1997 wh/m2Hours08:0046 w/m2
09:00151 w/m2
10:00286 w/m2
11:00219 w/m2
12:00224 w/m2
13:00230 w/m2
14:00218 w/m2
15:00188 w/m2
16:00156 w/m2
17:00255 w/m2
18:0024 w/m2
Tuesday, November 26
Total: 2144 wh/m2Hours08:0041 w/m2
09:00112 w/m2
10:00188 w/m2
11:00257 w/m2
12:00268 w/m2
13:00253 w/m2
14:00218 w/m2
15:00278 w/m2
16:00270 w/m2
17:00198 w/m2
18:0061 w/m2
Wednesday, November 27
Total: 1680 wh/m2Hours08:0045 w/m2
09:00112 w/m2
10:00172 w/m2
11:00218 w/m2
12:00245 w/m2
13:00230 w/m2
14:00218 w/m2
15:00188 w/m2
16:00142 w/m2
17:0085 w/m2
18:0025 w/m2
Thursday, November 28
Total: 1604 wh/m2Hours08:0040 w/m2
09:00101 w/m2
10:00155 w/m2
11:00197 w/m2
12:00223 w/m2
13:00230 w/m2
14:00218 w/m2
15:00188 w/m2
16:00142 w/m2
17:0085 w/m2
18:0025 w/m2
Friday, November 29
Total: 4433 wh/m2Hours08:0072 w/m2
09:00228 w/m2
10:00402 w/m2
11:00565 w/m2
12:00615 w/m2
13:00622 w/m2
14:00564 w/m2
15:00548 w/m2
16:00453 w/m2
17:00290 w/m2
18:0074 w/m2
Saturday, November 30
Total: 3063 wh/m2Hours08:0055 w/m2
09:00157 w/m2
10:00269 w/m2
11:00374 w/m2
12:00422 w/m2
13:00436 w/m2
14:00414 w/m2
15:00386 w/m2
16:00303 w/m2
17:00194 w/m2
18:0053 w/m2
Sunday, December 1
Total: 4660 wh/m2Hours08:0099 w/m2
09:00275 w/m2
10:00457 w/m2
11:00617 w/m2
12:00658 w/m2
13:00633 w/m2
14:00550 w/m2
15:00548 w/m2
16:00454 w/m2
17:00292 w/m2
18:0077 w/m2
Monday, December 2
Total: 2883 wh/m2Hours08:0057 w/m2
09:00155 w/m2
10:00254 w/m2
11:00324 w/m2
12:00327 w/m2
13:00296 w/m2
14:00239 w/m2
15:00413 w/m2
16:00430 w/m2
17:00303 w/m2
18:0085 w/m2
Tuesday, December 3
Total: 3446 wh/m2Hours08:0038 w/m2
09:00108 w/m2
10:00183 w/m2
11:00252 w/m2
12:00366 w/m2
13:00435 w/m2
14:00478 w/m2
15:00606 w/m2
16:00535 w/m2
17:00340 w/m2
18:00105 w/m2
Wednesday, December 4
Total: 1808 wh/m2Hours08:0037 w/m2
09:00108 w/m2
10:00183 w/m2
11:00252 w/m2
12:00264 w/m2
13:00251 w/m2
14:00217 w/m2
15:00207 w/m2
16:00157 w/m2
17:0095 w/m2
18:0037 w/m2
Thursday, December 5
Total: 2014 wh/m2Hours08:0037 w/m2
09:00117 w/m2
10:00211 w/m2
11:00305 w/m2
12:00306 w/m2
13:00295 w/m2
14:00260 w/m2
15:00207 w/m2
16:00157 w/m2
17:0087 w/m2
18:0032 w/m2
Friday, December 6
Total: 1589 wh/m2Hours08:0037 w/m2
09:0097 w/m2
10:00151 w/m2
11:00194 w/m2
12:00220 w/m2
13:00228 w/m2
14:00217 w/m2
15:00188 w/m2
16:00143 w/m2
17:0087 w/m2
18:0027 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.
