Solar radiation in Waltham 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, March 31
Total: 4709 wh/m2Hours07:008 w/m2
08:00128 w/m2
09:00283 w/m2
10:00425 w/m2
11:00536 w/m2
12:00608 w/m2
13:00635 w/m2
14:00614 w/m2
15:00549 w/m2
16:00443 w/m2
17:00307 w/m2
18:00153 w/m2
19:0020 w/m2
Tomorrow, April 1
Total: 4500 wh/m2Hours07:0011 w/m2
08:00126 w/m2
09:00242 w/m2
10:00413 w/m2
11:00453 w/m2
12:00514 w/m2
13:00620 w/m2
14:00621 w/m2
15:00556 w/m2
16:00450 w/m2
17:00313 w/m2
18:00158 w/m2
19:0023 w/m2
Wednesday, April 2
Total: 4763 wh/m2Hours07:0013 w/m2
08:00140 w/m2
09:00295 w/m2
10:00438 w/m2
11:00549 w/m2
12:00620 w/m2
13:00635 w/m2
14:00611 w/m2
15:00539 w/m2
16:00431 w/m2
17:00308 w/m2
18:00158 w/m2
19:0026 w/m2
Thursday, April 3
Total: 4926 wh/m2Hours07:0017 w/m2
08:00147 w/m2
09:00303 w/m2
10:00444 w/m2
11:00555 w/m2
12:00626 w/m2
13:00653 w/m2
14:00633 w/m2
15:00567 w/m2
16:00461 w/m2
17:00323 w/m2
18:00168 w/m2
19:0029 w/m2
Friday, April 4
Total: 3624 wh/m2Hours07:0020 w/m2
08:00151 w/m2
09:00306 w/m2
10:00447 w/m2
11:00539 w/m2
12:00566 w/m2
13:00504 w/m2
14:00423 w/m2
15:00305 w/m2
16:00183 w/m2
17:00114 w/m2
18:0056 w/m2
19:0010 w/m2
Saturday, April 5
Total: 4979 wh/m2Hours07:0023 w/m2
08:00158 w/m2
09:00305 w/m2
10:00412 w/m2
11:00547 w/m2
12:00633 w/m2
13:00664 w/m2
14:00643 w/m2
15:00577 w/m2
16:00471 w/m2
17:00333 w/m2
18:00178 w/m2
19:0035 w/m2
Sunday, April 6
Total: 5119 wh/m2Hours07:0027 w/m2
08:00166 w/m2
09:00322 w/m2
10:00463 w/m2
11:00573 w/m2
12:00643 w/m2
13:00668 w/m2
14:00646 w/m2
15:00580 w/m2
16:00473 w/m2
17:00337 w/m2
18:00182 w/m2
19:0039 w/m2
Monday, April 7
Total: 5199 wh/m2Hours07:0031 w/m2
08:00172 w/m2
09:00329 w/m2
10:00469 w/m2
11:00579 w/m2
12:00650 w/m2
13:00675 w/m2
14:00654 w/m2
15:00587 w/m2
16:00481 w/m2
17:00343 w/m2
18:00187 w/m2
19:0042 w/m2
Tuesday, April 8
Total: 5265 wh/m2Hours07:0035 w/m2
08:00178 w/m2
09:00335 w/m2
10:00475 w/m2
11:00585 w/m2
12:00655 w/m2
13:00680 w/m2
14:00659 w/m2
15:00592 w/m2
16:00486 w/m2
17:00348 w/m2
18:00192 w/m2
19:0045 w/m2
Wednesday, April 9
Total: 4394 wh/m2Hours07:0040 w/m2
08:00184 w/m2
09:00341 w/m2
10:00481 w/m2
11:00591 w/m2
12:00661 w/m2
13:00686 w/m2
14:00649 w/m2
15:00477 w/m2
16:00135 w/m2
17:0088 w/m2
18:0049 w/m2
19:0012 w/m2
Thursday, April 10
Total: 3474 wh/m2Hours07:0044 w/m2
08:00190 w/m2
09:00346 w/m2
10:00481 w/m2
11:00562 w/m2
12:00557 w/m2
13:00438 w/m2
14:00344 w/m2
15:00236 w/m2
16:00124 w/m2
17:0089 w/m2
18:0050 w/m2
19:0013 w/m2
Friday, April 11
Total: 1757 wh/m2Hours07:0013 w/m2
08:0059 w/m2
09:00106 w/m2
10:00160 w/m2
11:00195 w/m2
12:00217 w/m2
13:00225 w/m2
14:00218 w/m2
15:00182 w/m2
16:00150 w/m2
17:00126 w/m2
18:0081 w/m2
19:0025 w/m2
Saturday, April 12
Total: 2730 wh/m2Hours07:0045 w/m2
08:00169 w/m2
09:00304 w/m2
10:00421 w/m2
11:00436 w/m2
12:00361 w/m2
13:00193 w/m2
14:00187 w/m2
15:00168 w/m2
16:00139 w/m2
17:00152 w/m2
18:00116 w/m2
19:0039 w/m2
Sunday, April 13
Total: 1400 wh/m2Hours07:0015 w/m2
08:0052 w/m2
09:0091 w/m2
10:00126 w/m2
11:00153 w/m2
12:00171 w/m2
13:00177 w/m2
14:00171 w/m2
15:00154 w/m2
16:00127 w/m2
17:0093 w/m2
18:0054 w/m2
19:0016 w/m2
Monday, April 14
Total: 3310 wh/m2Hours07:0016 w/m2
08:0064 w/m2
09:00129 w/m2
10:00200 w/m2
11:00269 w/m2
12:00327 w/m2
13:00366 w/m2
14:00436 w/m2
15:00461 w/m2
16:00421 w/m2
17:00342 w/m2
18:00212 w/m2
19:0067 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.
