Analysis of Thermal Comfort Trend of Kaduna Metropolis, Kaduna State, Nigeria

Abstract

The aim of the study was to describe the Thermal Comfort of Kaduna Metrplis. The Thermo-hygrometric Index (THI), mean monthly Temperature and Relative Humidity values of Kaduna metropolis were sourced from Nigerian Meteorological Egency (Nimet) (2009 - 2023). THI values were derived, categorized, and used to determine the Thermal Comfort trend. The result revealed an increasing trend in THI throughout the study period, with the months of May and April having the hotter thermal comfort index (>25°C) compared to other months of the year. The months of December and January recorded the less hot thermal comfort index (17-22 °C). The year 2019, was the hottest year with mean annual THI of >24.5 °C. The study concluded that the thermal comfort of the study area was on the increase towards the discomfort level. Based on the findings, the study recommended green Kaduna initiative that would encourage tree planting, heat stress awareness and adaptation campaign and urban decongestion policies