Sun path diagram generator: 2D, 3D and globe views for any address

Three views of the sun's path

• A 3D view of the sky dome over the site, with rays from the sun's key positions to the site.
• A section view: a south-to-north cut through the sky dome, showing how high the sun climbs at midday and how low it stays in winter.
• A globe view: a polar projection of the sun's path over the map of the region, for reading solar altitude and azimuth.

Three key dates

Every view shows the summer solstice, the equinox and the winter solstice, with the date, the sun's altitude at 12:00, sunrise, sunset and the key hours, in local standard time.

The whole year in one diagram

Behind the highlighted day, light curves trace the sun's path in every month and at each hour of the year (the figure-of-eight analemmas), so any date and time can be read off it.

From solar geometry to design

Use the diagrams to orient the building, size overhangs and fins, see which facades take the low morning and evening sun, and find where courtyards and terraces stay in sun or shade. They are computed for the searched point, not the nearest city.

Cloud cover matters too

Geometry alone overstates the sun in cloudy climates. C4B pairs the sun path with a monthly overview of daytime cloud cover, and projects can overlay future climate scenarios on it.