Abstract            Volume:14  Issue-10  Year-2026         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Tropical sandy-lagoonal coastal strips concentrate thermal-comfort challenges because of their limited width, high radiative exposure and simultaneous proximity to water bodies with contrasting thermal properties. This configuration is particularly pronounced on the Grand-Popo peninsula, where the Atlantic Ocean, the Gbaga Channel and a progressively densifying urban fabric structure a discontinuous microclimatic system. The general objective is to characterize local bioclimatic conditions and determine their relationship with thermal comfort and adaptation strategies among riparian populations. The study combines hourly and daily meteorological data, in-situ microclimatic measurements conducted from 06:00 to 18:00, remote-sensing data and a survey of 384 respondents. Thermal conditions are assessed using the Universal Thermal Climate Index (UTCI), complemented by analysis of thermal perception, reported effects on activities, and spatial and architectural responses. The results show a regular thermal gradient between the two interfaces: the mean daily difference reaches 1.8 °C between ocean-facing and lagoon-facing sectors, with a maximum of 2.7 °C at 14:00. Mean UTCI reaches 34.6 °C at 14:00 during the hot season, corresponding to strong thermal stress, compared with 31.8 °C on the ocean-facing sector. Across hourly observations, 42.6% fall within strong to very strong thermal-stress classes. The survey indicates that 78.1% of respondents frequently experience uncomfortable heat and 72.4% report adapting their location or activity schedules.

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