DTM Yemen - Flow Monitoring Datasets - November 2021


Public Dataset


  • Flow Monitoring Survey
  • Flow Monitoring
Period Covered
Nov 12 2021 -
Nov 30 2021
IOM Yemen DTM’s Flow Monitoring Registry (FMR) monitors migrant arrival on the southern coastal border and Yemeni return locations on Yemen's northern border with the Kingdom of Saudi Arabia (KSA). Enumerators placed at Flow Monitoring Points (FMPs) record arrivals of migrants and returning Yemeni nationals in order to identify different patterns of migration, and to provide quantitative estimates to help define the population of irregular migrants entering the country. FMR is not representative of all flows in Yemen and should be understood as only indicative of the individuals recorded at FMPs during the time frame indicated. Access constraints limit the ability to collect data at some migrant arrival points. In November 2021, IOM Yemen DTM estimates that 3,622 migrants entered Yemen, compared to 4,300 migrants in October 2021. The decrease in the number of migrants in November comparing to October is due to tight restrictions on maritime borders on Yemen. DTM estimates that 5,802 Yemeni nationals returned from KSA during the month of November 2021, compared to 6,158 in October and 4,228 Yemenis in September 2021. During the period between 1 January and 30 November 2021, an estimated 24,002 migrants and 22,010 Yemenis arrived in Yemen.
Population Groups

Survey Methodology

Unit of Analysis Or Observation

Type of Survey or Assessment


Geographical Scope

Administrative boundaries with available data

The current dataset covers the following administrative boundaries