pythonguides.com › matplotlib-set_xticklabelsMatplotlib Set_xticklabels - Python Guides Dec 11, 2021 · Read Matplotlib two y axes. Matplotlib set_xticklabels fontsize. Here we’ll learn how we can modify the font size of x-axis tick labels. To change the size, we have to pass the fontsize argument to the set_xticklabels method.