Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983–2020): Towards Climate Change Resilience and Adaptation

This study reveals rainfall variability and trends in the African continent using TAMSAT data from 1983 to 2020. In study, a Mann–Kendall (MK) test Sen’s slope estimator were used analyze their magnitude, respectively, under monthly, seasonal, annual timeframes as an indication of climate change different natural geographical contexts (i.e., sub-regions, zones, major river basins, countries). The finds that highest recorded Rwanda (11.97 mm/year), Gulf Guinea (river basin 8.71 tropical rainforest zone (8.21 Central region (6.84 while Mozambique (−0.437 subtropical northern desert (0.80 west coast South Africa (−0.360 Northern (1.07 mm/year) show lowest trends. There is statistically significant increase countries Africa’s central regions, there no southern eastern regions. terms climates, peninsulas, grasslands, over entire timeframe month, season, year. implies increased will have positive effect on food security those climatic zones. Since large percentage agriculture based only rain-fed agriculture), increasing can assist resilience adaptation, declining badly affect it. information be crucial for decision-makers concerned with effective crop planning water resource management. trend analysis this provide important need effectively mitigate drought flood risk.