This research uses properly designed ambient titanium dioxide (TiO2) coatings to investigate how temperature affects photovoltaic performance. It adopts a binary system method to perform a theoretical J-V assessment of suitable coating consistency and validates the findings through multiple experimental trials. The current density of cells increased by 50% when they received a 0.1 μm thick TiO2 coating. During the midday period between 12 PM and 1 PM, coated panels achieved a 4.93% enhancement of their electrical output. The coated panels produced a maximum power output of 70 W, which represented a 20.7% greater outcome than uncoated panels, which delivered 58 W. Maximum solar conditions enabled coated panels to generate a current flow of 4.6 A, which surpassed the 4.1 A output from uncoated panels. This corresponds to a 12.2% improvement. TiO2 coating enables photovoltaic effectiveness during the daytime as its primary beneficial aspect. The efficiency enhancement of coated panels exceeded 7.14–15%, specifically during the temperature peak period from 12 PM until 2 PM. The coated photovoltaic panels outperformed the uncoated version by 21.4% due to their absolute efficiency of 8.5% versus 7%. The effectiveness and stability of coated panels exceed those of uncoated panels throughout all variations in environmental conditions. The combination of theoretical models along with experimental tests creates a connection between simulated photovoltaic models and their practical deployment under natural temperature conditions. Tightly controlled TiO2 coatings demonstrate effective cooling capabilities for photovoltaic units, boosting solar installation performance in hot climate conditions. The research provides substantial advancements to photovoltaic thermal optimization knowledge by improving performance output and extending equipment duration.