During the last deglacial transition, orbitally forced changes in the Northern Hemisphere temperature seasonality resulted in the change of global mean climate conditions. Despite its importance, the evolution of the annual cycle of environmental conditions at the Earth's surface is not well constrained. Fossil shallow-water corals provide a unique but relatively rare climate archive for the tropical ocean that can be sampled at high resolution. Here we present monthly resolved geochemical proxy data (Sr/Ca, Mg/Ca, δ¹⁸O, δ¹³C) extracted along the growth axes of Porites skeletons recovered during IODP Expedition 310 “Tahiti Sea Level”. These coral colonies have been U-Th dated and cover an age between 9.06 and 15.15 ka BP. Furthermore, this data set contains annual linear extension rates for the deglacial Porites corals.

For coral 310-20A-23R-1 (0-78 cm) base, only transects 1 and 3 were used for paleoclimate reconstructions. However, all transects were used for quantification of coral intra-colony variability of geochemical proxies.