Umar Saleh Anka
Delayed Harmattan in Northern Nigeria:
A Climate Signal and a Call to Action
Across Northern Nigeria from Yobe, Benue, and Adamawa to Sokoto, Katsina, Kebbi, Kano, Kaduna, and Jigawa many communities in 2025 experienced the familiar Harmattan winds arriving late, with less intensity or subdued dust. For generations, the dry, dusty Harmattan carried by northeasterly trade winds from the Sahara Desert has marked the seasonal shift between late November and mid-March. This dependable rhythm is now being disrupted, offering a vivid signal of changing climatic patterns that affect both nature and human livelihoods.
At its core, the Harmattan’s timing depends on the balance between moist and dry atmospheric forces namely, the retreat of moist monsoon air and the advance of dry Saharan air. Historically, this transition followed a reliable cycle. In recent years, however, rising global temperatures and changing atmospheric circulation have weakened the pressure gradients that drive dry winds, making the southward progression of the Harmattan less predictable and less intense.
In 2025, substantial rainfall persisted late into the typical early dry season in some parts of the North, leaving residual moisture in the atmosphere. This dampened the dryness that usually promotes the onset of Harmattan winds, delaying the season’s arrival. At the same time, environmental changes including vegetation loss, land degradation, and changing land surface temperatures have altered local atmospheric behavior, further contributing to the shift in seasonal patterns. These combined influences reflect the growing variability of regional climate systems and challenge long-held assumptions about weather behavior in the sub-region.
For smallholder farmers, who produce the majority of Nigeria’s staple foods and rely on predictable seasonal cues, these shifts are not abstract. They are practical, day-to-day challenges. Erratic rainfall and delayed dry seasons disrupt planting and harvesting schedules, increasing the risk of crop damage, reducing yields, and contributing to food insecurity. Many farmers in states like Sokoto and Yobe now face diminished surface water availability, making irrigation harder and more costly. The resulting economic strains are felt in rural households and throughout local food markets.
Yet, while we cannot immediately stop climate change, there are practical and actionable strategies that can help communities adapt and build resilience. Climate-smart agriculture must be embraced widely. This includes the use of drought-tolerant and early maturing crop varieties, crop diversification, soil conservation, and integrated pest management all of which help stabilize yields in the face of erratic weather. These approaches are not hypothetical: they are proven practices that help smallholder farmers manage risk and protect their livelihoods.
Investment in water harvesting and efficient irrigation is equally crucial. Rainwater harvesting systems, community reservoirs, and micro-irrigation techniques such as drip systems enable farmers to make the most of unpredictable rainfall and reduce dependence on shrinking natural water sources. Strengthening climate information services, including accurate localized forecasts and early warning systems, empowers farmers with the knowledge they need to make informed decisions about planting, harvesting, and protecting livestock.
At the policy level, integrating climate adaptation planning into agricultural development frameworks is essential. This includes creating incentives for climate risk-sharing instruments such as agricultural insurance, expanding rural infrastructure like water storage facilities, and ensuring that national and state policies reflect the lived realities of northern farmers.
Civil society organizations also play a vital role. Groups such as the Women Farmers Advancement Network (WOFAN), the Centre for Dryland Agriculture (CDA), and the Centre for Environment and Rural Development (CERD), Green Legacy, Sustainable Action for Nature (SAN) are already working on the ground to train farmers in climate resilient practices and advocate for policies that support vulnerable communities. Their efforts help bridge the gap between policymakers and rural farmers, ensuring that adaptation strategies reach those who need them most.
The delayed 2025 Harmattan season is more than a meteorological oddity. It is a clear indication of a changing climate that demands thoughtful adaptation, sustained support, and collective action. Northern Nigeria’s communities have a long history of resilience. With the right tools from climate-smart agriculture to improved water management and supportive policies they can adapt to these new climatic realities, protecting their livelihoods and contributing to a more resilient future.