Relationships were determined between methane (CH₄) production and in situ conditions within the permafrost active layer during a single melt season at Stordalen, Sweden, with a specific emphasis on temperature sensitivity of methanogenesis. In situ temperature, moisture, pH, dissolved organic carbon, and CH₄ concentration data were measured at three contrasting active layer sites (sedge mire, Sphagnum mire, and ombrotrophic bog), and laboratory incubations of active layer material were subsequently employed to determine the sensitivity of CH₄ production to temperature. Q₁₀ values, describing the CH₄ production response of peat to a temperature change of 10 °C, ranged from 1.9 to 3.5 and 2.4 to 5.8 for the sedge and Sphagnum mire sites, respectively. A wider review of the literature on Q₁₀ responses of methanogenesis in northern peatlands shows similar features to the temperature response of CH₄ production in the active layer at Stordalen. In general, Q₁₀ values are not significantly different in Arctic permafrost wetlands than non-Arctic northern wetlands; however, Sphagnum sites display Q₁₀ responses (mean Q₁₀ = 8) that are notably greater than that of wetter minerotrophic-sedge environments (mean Q₁₀ = 4.3). This finding has implications for the parameterization of Q₁₀ factors in numerical carbon cycling models, and suggests that the use of spatially variable Q₁₀ values could be a useful approach for more accurate modeling of CH₄ fluxes from northern wetlands under different climatic change scenarios.