39th parallel south
The 39th parallel south is a circle of latitude that is 39 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America.
Daylight along the 39th parallel south falls under 10 hours a day starting on May 17 and returns to over ten hours a day beginning July 29. Crops and other plant growth is considerably slowed during this period of reduced sunlight.
Starting at the Prime Meridian and heading eastwards, the parallel 39° south passes through:
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See also