Solar radiation in Sapporo-shi 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, September 17
Total: 2718 wh/m2Hours06:0018 w/m2
07:0062 w/m2
08:00150 w/m2
09:00162 w/m2
10:00192 w/m2
11:00477 w/m2
12:00530 w/m2
13:00272 w/m2
14:00311 w/m2
15:00349 w/m2
16:00141 w/m2
17:0054 w/m2
Tomorrow, September 18
Total: 5485 wh/m2Hours06:0059 w/m2
07:00245 w/m2
08:00430 w/m2
09:00584 w/m2
10:00693 w/m2
11:00750 w/m2
12:00748 w/m2
13:00689 w/m2
14:00578 w/m2
15:00422 w/m2
16:00236 w/m2
17:0051 w/m2
Thursday, September 19
Total: 5437 wh/m2Hours06:0056 w/m2
07:00242 w/m2
08:00427 w/m2
09:00581 w/m2
10:00690 w/m2
11:00746 w/m2
12:00744 w/m2
13:00685 w/m2
14:00573 w/m2
15:00417 w/m2
16:00230 w/m2
17:0046 w/m2
Friday, September 20
Total: 1561 wh/m2Hours06:0031 w/m2
07:00136 w/m2
08:00226 w/m2
09:00144 w/m2
10:00172 w/m2
11:00185 w/m2
12:00185 w/m2
13:00170 w/m2
14:00142 w/m2
15:00103 w/m2
16:0056 w/m2
17:0011 w/m2
Saturday, September 21
Total: 4495 wh/m2Hours06:0028 w/m2
07:00169 w/m2
08:00407 w/m2
09:00433 w/m2
10:00376 w/m2
11:00539 w/m2
12:00686 w/m2
13:00644 w/m2
14:00551 w/m2
15:00405 w/m2
16:00219 w/m2
17:0038 w/m2
Sunday, September 22
Total: 4996 wh/m2Hours06:0049 w/m2
07:00233 w/m2
08:00417 w/m2
09:00571 w/m2
10:00679 w/m2
11:00733 w/m2
12:00730 w/m2
13:00655 w/m2
14:00488 w/m2
15:00248 w/m2
16:00164 w/m2
17:0029 w/m2
Monday, September 23
Total: 5236 wh/m2Hours06:0046 w/m2
07:00229 w/m2
08:00413 w/m2
09:00567 w/m2
10:00675 w/m2
11:00729 w/m2
12:00726 w/m2
13:00666 w/m2
14:00552 w/m2
15:00395 w/m2
16:00208 w/m2
17:0030 w/m2
Tuesday, September 24
Total: 5144 wh/m2Hours06:0043 w/m2
07:00222 w/m2
08:00401 w/m2
09:00551 w/m2
10:00662 w/m2
11:00719 w/m2
12:00719 w/m2
13:00660 w/m2
14:00547 w/m2
15:00390 w/m2
16:00203 w/m2
17:0027 w/m2
Wednesday, September 25
Total: 2605 wh/m2Hours06:0011 w/m2
07:0072 w/m2
08:00150 w/m2
09:00232 w/m2
10:00318 w/m2
11:00384 w/m2
12:00420 w/m2
13:00373 w/m2
14:00308 w/m2
15:00212 w/m2
16:00112 w/m2
17:0013 w/m2
Thursday, September 26
Total: 3492 wh/m2Hours06:0039 w/m2
07:00219 w/m2
08:00403 w/m2
09:00556 w/m2
10:00648 w/m2
11:00599 w/m2
12:00310 w/m2
13:00255 w/m2
14:00186 w/m2
15:00113 w/m2
16:00145 w/m2
17:0019 w/m2
Friday, September 27
Total: 4978 wh/m2Hours06:0036 w/m2
07:00216 w/m2
08:00399 w/m2
09:00553 w/m2
10:00659 w/m2
11:00712 w/m2
12:00708 w/m2
13:00643 w/m2
14:00521 w/m2
15:00354 w/m2
16:00164 w/m2
17:0013 w/m2
Saturday, September 28
Total: 1636 wh/m2Hours06:0033 w/m2
07:00186 w/m2
08:00268 w/m2
09:00165 w/m2
10:00180 w/m2
11:00195 w/m2
12:00176 w/m2
13:00160 w/m2
14:00132 w/m2
15:0092 w/m2
16:0045 w/m2
17:004 w/m2
Sunday, September 29
Total: 4523 wh/m2Hours06:008 w/m2
07:00111 w/m2
08:00287 w/m2
09:00469 w/m2
10:00598 w/m2
11:00671 w/m2
12:00682 w/m2
13:00629 w/m2
14:00519 w/m2
15:00362 w/m2
16:00175 w/m2
17:0012 w/m2
Monday, September 30
Total: 3314 wh/m2Hours06:007 w/m2
07:0051 w/m2
08:00107 w/m2
09:00149 w/m2
10:00356 w/m2
11:00519 w/m2
12:00602 w/m2
13:00561 w/m2
14:00468 w/m2
15:00329 w/m2
16:00157 w/m2
17:008 w/m2
Tuesday, October 1
Total: 1979 wh/m2Hours06:0027 w/m2
07:00197 w/m2
08:00303 w/m2
09:00134 w/m2
10:00161 w/m2
11:00174 w/m2
12:00172 w/m2
13:00245 w/m2
14:00262 w/m2
15:00217 w/m2
16:0084 w/m2
17:003 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.
