Vanuatu North : Sub-national Historical and Projected Climate Overview

Abstract

Variability in rainfall and cyclone activity is strongly a􀄫ected by the South Pacific Convergence 􀁿one (SPC􀁿) and the El Ni􀅹o Southern Oscillation (ENSO). In El Ni􀅹o years, the SPC􀁿 moves north-east in the western tropical Pacific, leading to drier conditions and fewer cyclones over Vanuatu. In La Ni􀅹a years, the SPC􀁿 moves south-west, leading to wetter conditions and more cyclones over Vanuatu.