What time of day are the sun's rays strongest?

1 Answer
Jul 16, 2016

Mid-time (Local Standard Time noon) between Sunrise and Sunset.

Explanation:

When the solar rays strike directly from over head, the angle of

incidence is #0^o#. So, the rays are strongest when this angle is a

minimum

The angle of incidence of solar rays has a day minimum at noon.

The year minimum is the minimum in the range

#|latitude+-23.4^o|#

The noon angle of incidence of solar rays varies between

#latitude+-23.4^o#.

These data would enable the reader to find when the Sun might

be right over head, in a year.

Do not expect precisely right-over-head Sun, in latitudes > 23.4^o

N/S#.,