The 43rd parallel south is a circle of latitude that is 43 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America. On December solstice the sun is at 70.83 degrees in the sky and on June solstice it is at 23.17 degrees. At this latitude the sun is visible for 15 hours, 22 minutes during the Summer Solstice and 9 hours, 0 minutes during the Winter Solstice.

Around the world

Starting at the Prime Meridian and heading eastwards, the parallel 43° south passes through: ! scope="col" width="125" | Coordinates ! scope="col" | Country, territory or ocean ! scope="col" | Notes ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" | 🇦🇺 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | 🇳🇿 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | ! scope="row" | 🇦🇷 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean