In October 2023, County Cork was struck by two days of extreme rainfall from Storm Babet that fell on already saturated soils. Swollen rivers led to severe flooding in Midleton.
In late November, countries bordering the Black Sea including Romania, Bulgaria, Moldova, Ukraine, Türkiye and Russia, witnessed exceptionally high rainfall and snowfall, and hurricane-force winds due to Storm Bettina.
After years of drought the short rainy season (October to December, OND) in the Horn of Africa brought exceptionally heavy rains, particularly in November, leading to severe flooding in the South of Ethiopia, Eastern Kenya and many regions in southern and central Somalia.
During the first two weeks of September 2023 torrential rain fell in several countries across the Mediterranean, caused by low-pressure systems forming around a blocking high centred over the Netherlands.
At the beginning of May severe flooding around Lake Kivu devastated communities in Rwanda and the Democratic Republic of Congo (DRC). Flooding and landslides led to at least 595 fatalities with 460 reported deaths in the DRC and 135 in Rwanda.