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This paper reports a preliminary result for estimating thermospheric temperature around 155 km from the N₂ Lyman-Birge-Hopfield bands observed by TIMED/Global Ultraviolet Imager (GUVI). Atmospheric Ultraviolet Radiance Integrated Code model (Strickland et al., 1999, https://doi.org/10.1016/S0022-4073(98)00098-3) calculations indicate that the intensity ratio in the N₂ Lyman-Birge-Hopfield (0,0) and (1,0) bands at 144.5- to 145.5- and 141.0- to 142.0-nm quasi-linearly depend on N₂ rotational temperature. The observed ratios and the Atmospheric Ultraviolet Radiance Integrated Code results are used together to specify the thermospheric temperature around 155 km under sunlit conditions. The estimated temperature agrees fairly well with the neutral temperature at 155 km from WACCM-X model. The estimated temperature is also higher over the auroral oval and O/N₂ depleted regions. Furthermore, meridional wave-like structures were clearly seen in the derived temperature and were likely caused by traveling atmospheric disturbances.