Monthly outlook of 11 September 2026

A 30-day climate outlook for Guadeloupe and the northern islands of Saint Martin and Saint Barthélemy, prepared on 11 September 2026. For the period from 14 September to 11 October 2026, it forecasts rainfall totals clearly below normal across the Leeward Islands of the Lesser Antilles. Rainfall during the week of 14-20 September is expected to be near or slightly below the 1991-2020 normal, followed by three weeks of generally moderate rainfall deficits. Temperatures are expected to be approximately 0.5 °C above normal in Guadeloupe and between 0.5 °C and 1.5 °C above normal in the northern islands. The week of 5-11 October is projected to be the warmest relative to normal.