Solar radiation in Saint-Nazaire 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, December 19
Total: 1306 wh/m2Hours09:001 w/m2
10:0066 w/m2
11:00171 w/m2
12:00253 w/m2
13:00265 w/m2
14:00254 w/m2
15:00196 w/m2
16:0094 w/m2
17:006 w/m2
Tomorrow, December 20
Total: 557 wh/m2Hours10:0058 w/m2
11:00140 w/m2
12:00142 w/m2
13:0072 w/m2
14:0067 w/m2
15:0051 w/m2
16:0025 w/m2
17:002 w/m2
Saturday, December 21
Total: 413 wh/m2Hours10:0024 w/m2
11:0063 w/m2
12:0095 w/m2
13:0086 w/m2
14:0067 w/m2
15:0051 w/m2
16:0025 w/m2
17:002 w/m2
Sunday, December 22
Total: 1000 wh/m2Hours10:0018 w/m2
11:00114 w/m2
12:00214 w/m2
13:00272 w/m2
14:00224 w/m2
15:00129 w/m2
16:0025 w/m2
17:004 w/m2
Monday, December 23
Total: 1165 wh/m2Hours10:0072 w/m2
11:00177 w/m2
12:00229 w/m2
13:00163 w/m2
14:00222 w/m2
15:00193 w/m2
16:00102 w/m2
17:007 w/m2
Tuesday, December 24
Total: 604 wh/m2Hours10:0020 w/m2
11:0058 w/m2
12:0094 w/m2
13:00112 w/m2
14:00133 w/m2
15:00116 w/m2
16:0065 w/m2
17:006 w/m2
Wednesday, December 25
Total: 874 wh/m2Hours10:0047 w/m2
11:00101 w/m2
12:00111 w/m2
13:0086 w/m2
14:00217 w/m2
15:00200 w/m2
16:00104 w/m2
17:008 w/m2
Thursday, December 26
Total: 1378 wh/m2Hours10:0070 w/m2
11:00177 w/m2
12:00254 w/m2
13:00286 w/m2
14:00270 w/m2
15:00206 w/m2
16:00106 w/m2
17:009 w/m2
Friday, December 27
Total: 1143 wh/m2Hours10:0069 w/m2
11:00176 w/m2
12:00249 w/m2
13:00265 w/m2
14:00218 w/m2
15:00128 w/m2
16:0032 w/m2
17:006 w/m2
Saturday, December 28
Total: 1383 wh/m2Hours10:0069 w/m2
11:00176 w/m2
12:00254 w/m2
13:00287 w/m2
14:00271 w/m2
15:00208 w/m2
16:00108 w/m2
17:0010 w/m2
Sunday, December 29
Total: 1389 wh/m2Hours10:0068 w/m2
11:00176 w/m2
12:00254 w/m2
13:00288 w/m2
14:00272 w/m2
15:00210 w/m2
16:00110 w/m2
17:0011 w/m2
Monday, December 30
Total: 1390 wh/m2Hours10:0068 w/m2
11:00176 w/m2
12:00254 w/m2
13:00288 w/m2
14:00273 w/m2
15:00210 w/m2
16:00110 w/m2
17:0011 w/m2
Tuesday, December 31
Total: 1095 wh/m2Hours10:0068 w/m2
11:00169 w/m2
12:00201 w/m2
13:00100 w/m2
14:00224 w/m2
15:00208 w/m2
16:00113 w/m2
17:0012 w/m2
Wednesday, January 1
Total: 1408 wh/m2Hours10:0068 w/m2
11:00176 w/m2
12:00256 w/m2
13:00290 w/m2
14:00276 w/m2
15:00214 w/m2
16:00115 w/m2
17:0013 w/m2
Thursday, January 2
Total: 395 wh/m2Hours10:0028 w/m2
11:0061 w/m2
12:0077 w/m2
13:0073 w/m2
14:0069 w/m2
15:0054 w/m2
16:0029 w/m2
17:004 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.
