For many years, December through February has meant one thing in Nigeria: harmattan. This season features dry, dusty winds from the Sahara, chilly mornings, and hazy skies. It has shaped everything from farming schedules to cultural traditions.
But as 2025 gave way to 2026, many Nigerians began to wonder: “Where’s the harmattan?”
Harmattan typically occurs from late November to mid-March. It’s marked by a dry, cool northeast wind that sweeps in from the Sahara. This year, though, instead of the expected chill, Nigerians are facing unusual heat. From the northern to southern regions, the air feels stifling. Fans whirl non-stop, air conditioners strain to keep up, and complaints about heat rashes replace the usual cold-related woes. This shift isn’t just uncomfortable; it’s a cause for concern.
Is this lack of harmattan a fluke or a sign of a larger issue? Climate change is one possibility. While many still think of climate change as a distant threat, it’s already making its presence felt. Global warming is disrupting weather patterns worldwide, including Nigeria’s seasonal rhythms. Harmattan relies on specific weather conditions—pressure systems, wind patterns, and temperature differences. When these conditions change, harmattan can fade away.
Globally, scientists are witnessing erratic weather trends: longer heatwaves, delayed rains, and unexpected flooding. Nigeria is not exempt. As temperatures rise, traditional weather patterns like harmattan may become weaker or more unpredictable.
Another factor is environmental degradation. Desertification and deforestation in the Sahel affect the Sahara’s weather patterns. When vegetation is lost, it changes how heat interacts with the atmosphere, further disrupting harmattan winds.
Urbanization also plays a role. Nigeria’s cities are growing rapidly, replacing green spaces with concrete. This leads to “urban heat islands,” where natural cooling effects are diminished. Such environments can make any cooling winds feel ineffective, leading to persistent warmth even in seasons that typically bring relief.
The disappearance of harmattan has real social and economic implications. Farmers depend on seasonal patterns to plan their crops. Without harmattan, soil moisture levels, pest behaviors, and yields can suffer. Extreme heat can also worsen health issues, notably dehydration and heat-related conditions, particularly for the elderly and vulnerable populations.
Furthermore, a prolonged absence of harmattan threatens water availability. Increased evaporation rates can dry up surface water faster, which is critical in a country where clean water is already scarce.
The problem is not just the fading of harmattan; it also reveals how unprepared Nigeria is for these changes. Current climate policies are often weak and poorly enforced. Many Nigerians lack environmental education, and long-term planning often gets overshadowed by immediate political concerns.
If harmattan can disappear, we must ask ourselves: “What else might we lose?”
This situation should motivate action. Government agencies, environmental experts, and academic institutions need to investigate these changes seriously, not treat them as mere coincidences. It’s crucial for Nigerians to receive clear, data-backed explanations. More importantly, the country must invest in climate adaptation and mitigation, like reforestation and improved urban planning.
The absence of harmattan isn’t just a minor inconvenience; it’s a clear message from nature. Ignoring this warning could cost us much more than just a cool December morning.
The pressing question is no longer “Why is it hot?” but “What kind of climate future are we stepping into, and are we ready for it?”
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