Marsabit County experiences arid and semi-arid climates reflecting its location in Kenya's extreme northern pastoral belt. Rainfall is the primary climatic concern, as water availability shapes all aspects of human settlement and livestock production.
Annual rainfall averages approximately 300,500 millimeters, with significant variation between areas and years. Mount Marsabit's elevation generates higher rainfall, supporting forest vegetation and springs. Lowland areas including the Chalbi Desert receive minimal rainfall, sometimes less than 250 millimeters annually.
Rainfall is highly seasonal and unreliable, with significant year-to-year variation creating adaptation challenges. Long rains typically occur between March and May. Short rains fall between October and December. Failure of either rainy season creates hardship for pastoral and agricultural communities.
Temperatures are high year-round, with average daily maxima often exceeding 30 degrees Celsius in lowland areas. Mount Marsabit's elevation creates cooler conditions than surrounding regions. Diurnal temperature variation can be substantial, with cool nights and hot days.
Evaporation rates are high, making water retention and storage challenging. Lake Turkana's salinity gradually increases due to net evaporation. River flows decrease significantly during dry seasons.
Drought represents the most significant climatic threat. Multi-year droughts (1984,1985 and 2010,2011 and ongoing conditions in recent years) devastate pastoral production as livestock die and pasture and water disappear.
Climate variability affects water availability through its impact on rainfall. Seasonal water availability dramatically shapes pastoral movement and settlement patterns. Perennial water sources remain limited.
Climate change is intensifying precipitation variability and increasing aridity. Scientific projections suggest continued warming and potential rainfall reduction in northern Kenya, with significant implications for pastoral production and food security.
See Also
Sources
- Kenya Meteorological Department: Climate Records and Analysis, Northern Kenya. https://www.meteo.go.ke/
- IPCC: Climate Change Impact Assessment for East Africa. https://www.ipcc.ch/
- CARE International: Climate Variability and Pastoralism in Northern Kenya. https://www.care.org/