Haiti Seasonal Monitor: Flooding hazard, 30 October 2026

FEWS NET's Haiti seasonal monitor of 30 October 2026, reporting on flooding hazard and vegetation health.

The key messages are two. An abnormal increase in rainfall is expected over the next 15 days, which may lead to localized flooding and infrastructure damage. And vegetation health conditions have improved across most of the country, with the most significant changes observed in southern areas.

On vegetation, a general increase in healthy vegetation has been observed across Haiti over the last 30 days, shown as NDVI as a percent of the 2003-2022 mean for 11 to 20 October 2026. Conditions in Nippes, Sud and Sud-Est are improving despite below-average rainfall in the period, while Centre, Nord, Nord-Est and Artibonite have moved from average to above-average conditions after increased rainfall in recent weeks.

On rainfall, the forecast for the next 15 days indicates an abnormal increase. Forecast totals exceed 100 mm across the country, with localized accumulations above 300 mm. Counting rainfall from 11 to 20 October and the forecast for 21 October to 5 November, most of Haiti is expected to receive between 200 and 300 mm, and areas above 300 mm, mainly the western parts of Ouest and Artibonite, may face the highest risks. The rain will help reduce the long-term seasonal deficit but could damage roads and irrigation systems, and bean crops may be vulnerable to excessive moisture over a short period. Over the medium term the rain is expected to replenish surface water and contribute to groundwater recharge, and temperatures are expected to decrease slightly, reducing evapotranspiration.