Simultaneous measurement of gas and solid temperatures in porous media is crucial for phenomenological determination of gas-solid thermal equilibrium state and homogenous/heterogenous combustion regime. Yet, it has remained an unsolved challenging issue for porous media temperature measuring techniques including thermocouple, thermal infrared photography, and X-ray computed tomography. In this work, a simple and convenient method using thermocouples and porous tubes was proposed for simultaneous measurement of gas and solid temperatures in porous media. A variety of experiments with three porous media (steel, sand and biomass), three particle sizes (5 mm, 10 mm, and 15 mm), and three air flow velocities (2.95 cm s−1, 5.90 cm s−1, and 14.88 cm s−1) were conducted to examine the effectiveness and capability of the proposed method. Uncertainty quantification for measuring gas temperature in inert porous media using porous tubes was elucidated with experiments and heat transfer models. Simultaneous measurement uncertainty due to radial deviation of gas and solid measurement locations was also evaluated. It was demonstrated that the proposed method was effective for simultaneous measurement of solid and gas temperature in porous media with acceptable error level (Normalized Root-Mean-Square Deviation, NRMSD = 0.02 – 0.09). Besides, case studies showed that the proposed method was capable to provide valuable experimental data for phenomenological determination of the thermal equilibrium state and the homogenous/heterogenous combustion regime.