Global Navigation Satellite Systems (GNSS) are widely used due to their precision. However, such systems are susceptible to jamming and spoofing. As an alternative, bio-inspired methods have been developed. Studies have shown that some insects, particularly desert ants, utilize the sky’s polarization pattern for navigation. The use of solar ephemeris combined with the estimation of the sun’s position through the polarization pattern enables direct geographical positioning. Nevertheless, animals do not have access to these ephemeris, and the utilization of the polarization pattern as a reference for their navigation remains poorly understood. We propose here an alternative method inspired by migratory birds, which calibrate their magnetic compass through the celestial rotation of night stars or the daytime polarization pattern. Similar to Brines, we consider the temporal properties of the sky’s polarization pattern as relevant navigation information. We developed a bio-inspired method to find the geographical north bearing and the observer’s latitude, requiring only skylight polarization observations provided here by a commercial polarimetric camera. Skylight is mostly linearly polarized and characterized by two parameters: the angle of linear polarization (AoLP) and degree of linear polarization (DoLP). Our method consists in processing only skylight DoLP images taken at different instants, in order to find the north celestial pole (NCP) from temporal invariances of the DoLP pattern. Then, the geographical north bearing (true north) and the observer’s latitude Φ can be deduced from the NCP’s coordinates. To experimentally validate our approach, we utilized a polarimetric camera (PHX050SQC from Lucid Vision Labs, sensor ref. Sony IMX250MYR) equipped with a 185° fisheye lens (FE185C57HA-1, Fujinon), which was situated on the roof of the INT Lab at La Timone, Marseille, France (43.2870135°N, 5.4034385°E). Our validation yielded a Mean Absolute Error (MAE) of 2.6° in azimuth and 3.8° in latitude.