The sun is directly overhead at solar noon at the equator on the equinoxes ; at Tropic of Cancer ( latitude 23 Â 1\/2 Â N ) on the summer solstice in June ; and at Tropic of Capricorn ( 23 Â 1\/2 Â S ) on the winter solstice in December . The Sun is directly overhead at solar noon at the equator on the equinoxes ; at Tropic of Cancer ( latitude 23 Â 26 â 22 â N ) on the June solstice ; and at Tropic of Capricorn ( 23 Â 26 â 22 â S ) on the December solstice .