The decade long conflict between the government and the Houthi movement escalated in 2015. The crisis has exacerbated historic vulnerabilities including chronic poverty, weak governance, corruption, over-dependence on imports, dwindling oil revenues, and water scarcity.? After President Hadi fled the capital Sana’a to the southern port city of Aden, an international coalition led by Saudi Arabia and the UAE began bombing Houthi-controlled areas. At least 24.1 million people in Yemen need humanitarian assistance.? In January 2019, some 64,000 people were in Catastrophe (IPC-5) levels of food insecurity, nearly 5 million people in Emergency (IPC-4) and 10.9 million in Crisis (IPC-3).?

Approximately 19.7 million people lack adequate healthcare, of whom 14 million are in acute need of assistance.? Around 300,000 suspected cholera cases and 578 deaths (CFR 0.19%) have been reported since the start of 2019.? From January to June 2019, there were 517,020 suspected cases and 755 deaths (CFR 0.15%) from cholera, which is already more suspected cases and deaths than what was recorded for the whole of 2018.? All governorates are affected, with 2,500 suspected cases reported daily. 17.8 million people lack access to WASH services, exacerbating the situation.? Fighting and bureaucracy restrict access to affected areas and the rainy season (April to August) will likely accelerate the spread of the disease. In Yemen, both rainy and dry conditions aggravate the spread of disease.

Widespread violations of international humanitarian law, including the targeting of civilians and civilian infrastructure by airstrikes and shelling, have resulted in loss of life, displacement, and destruction of infrastructure.? From the beginning of 2018 to the end of June 2019, approximately 6,850 civilian causalities and 2,650 civilian deaths have been recorded as a direct result of the fighting.? A UN-brokered ceasefire in December 2018 reduced violence in Al Hudaydah, however, fighting has continued on numerous active frontlines across the country. In 2019 an additional 300,000 people have been displaced bringing the total number of internally displaced people (IDPs) to an estimated 4 million people dispersed across all governorates. The majority having been displaced since March 2015.? Migrants and refugees, mostly from Ethiopia, continue to arrive in southern Yemen. April and May 2019 have seen some of the highest monthly averages of arrivals. IOM estimates that 18,320 refugees and migrants arrived in April 2019 and 18,904 people arrived in May 2019.? This is despite voluntary humanitarian return (VHR) flights coordinated by the Mixed Migration Working Group throughout May and June 2019 for migrants detained in informal detention centres with little to no services.

INFORM measures Yemen's risk of humanitarian crisis and disaster to be very high, at 7.8/10.?

Latest Developments

10/08: Heavy rain and flash floods have reportedly killed 130 people and caused severe damage to civilian houses and public infrastructure in 12 governorates across Yemen between 22 July and 5 August. Al Qanawis, Al Luhayah and Az Zuhrah district of Al Hodeidah governorate and Bani Qays district in Hajjah governorate were the most affected with around 187 houses damaged or destroyed displacing an estimated 160,000 people. In Sana’a city 111 houses were partially or completely destroyed. Marib dam flooded severely destroying nearby makeshift homes of IDPs. The heavy downpour of water affected Dhamar, Ibb and Taiz governorates and the highway connecting them. Further flooding is likely to exacerbate health risks for a vulnerable population who is already experiencing the effects of previous flooding and a COVID-19 outbreak.? Read acaps briefing note on flooding 

6/08: 22 civilians including seven children were killed in an airstrike on three houses in the Khub wa Ash Shaf district of Al Jawf governorate. Airstrike incidents have increased by 139% in the first six months of 2020, compared to last six months of 2019. Further airstrikes are expected, as the Saudi-led Coalition announced a new air campaign against the Houthis on 1 July in retaliation for an increase in cross-border missile and drone attacks on Saudi territory. Airstrike incidents since May targeted predominantly Marib, Sa'ada, Al-Jawf, Hajjah, and Al Bayda governorates, with Marib governorate most affected. Even though the total number of civilian casualties has been decreasing since May 2020, civilian casualties caused by airstrikes have doubled.  ??

ACAPS' team is daily monitoring the impact of the COVID-19 pandemic. For more information related to COVID-19 in Yemen, see content below.

Key Figures

Total population
People affected
People in Need
Key figures are for the entire response and are not CCCM-specific.

INFORM Global Crisis Severity Index

Crisis Severity: 4.5

Impact: 4.7

Humanitarian Conditions: 4.5

Complexity: 4.5

Access Constraints: 5

The above scale is from 0 (Very low) to 5 (Very high)
Information courtesy of ACAPS.
Response Overview

Key Figures - 2020 HPC

in need
People targeted
Funding required


  1. Provide safe, appropriate shelter and essential household items to displaced and highly vulnerable families
  2. Coordinate the delivery of a Minimum Service Package (MSP) in under-served emergency and IDP settlements

HDX datasets

12 Common Operating Datasets or CCCM-tagged datsets are on the Humanitarian Data Exchange: