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Review Article Volume 13 Issue 1
The impact of seasonal weather variations on cardiovascular-related illnesses in tropical regions
Chinago Budnukaeku Alexander
Received: March 03, 2026 | Published: March 31, 2026
Citation: Alexander CB. The impact of seasonal weather variations on cardiovascular-related illnesses in tropical regions. J Lung Pulm Respir Res. 2026;13(1):14-17. DOI: 10.15406/jlprr.2026.13.00338
Abstract
Tropical regions endure pronounced seasonal shifts between heavy rainy periods and intense dry spells, profoundly affecting cardiovascular disease (CVD) incidence and severity through mechanisms like temperature fluctuations, elevated humidity, and secondary stressors such as flooding or dehydration. Drawing from epidemiological evidence across sub-Saharan Africa and analogous tropics, this review documents heightened CVD hospitalizations—up to 38% higher during extended rainy seasons—and mortality risks tied to low minimum temperatures and narrow diurnal temperature ranges (DTR). Local patterns in Port Harcourt, Nigeria, exemplify these trends with bimodal rainfall peaking at 293mm in July amid 88% humidity, exacerbating vulnerabilities in a population already burdened by rising CVD rates. Comprehensive recommendations emphasize surveillance integration, community education, and infrastructure adaptations to mitigate these impacts.
Keywords: Cardiovascular diseases, seasonal weather, tropical climates, rainy season, humidity effects, public health interventions
©2026 Alexander. This is an open access article distributed under the terms of the, which permits unrestricted use, distribution, and build upon your work non-commercially.