surface surface surface surface 3.9°C surface surface surface https://hypertextbook.com/facts/2007/LilyLi.shtml surface surface http://hypertextbook.com/facts/2007/LilyLi.shtml surface surface surface Which average ocean temperature surface surface surface surface surface http://hypertextbook.com/facts/2007/LilyLi.shtml surface Diversas fuentes 3.9 °C http://hypertextbook.com/facts/2007/LilyLi.shtml Diversas fuentes 3.9 °C