Sinnamary Rainfall At Sinnamary in French Guiana, for a period of record spanning 1971 – 2014 average annual rainfall sum = 2746 mm wettest year on record = 4020.2 mm of rainfall in 2002 driest year on record = 1626.5 mm of rainfall in 2003 wettest month on average = 470.1 mm of rainfall in May … Continue reading Sinnamary Rainfall