Answers for "change font size of xaxis plot in python"

axis font size matplotlib

import matplotlib.pyplot as plt

SMALL_SIZE = 8
MEDIUM_SIZE = 10
BIGGER_SIZE = 12

plt.rc('font', size=SMALL_SIZE)          # controls default text sizes
plt.rc('axes', titlesize=SMALL_SIZE)     # fontsize of the axes title
plt.rc('axes', labelsize=MEDIUM_SIZE)    # fontsize of the x and y labels
plt.rc('xtick', labelsize=SMALL_SIZE)    # fontsize of the tick labels
plt.rc('ytick', labelsize=SMALL_SIZE)    # fontsize of the tick labels
plt.rc('legend', fontsize=SMALL_SIZE)    # legend fontsize
plt.rc('figure', titlesize=BIGGER_SIZE)  # fontsize of the figure title

set font size xaxis pandas

plt.figure()
plt.rcParams.update({'font.size': 22}) # must set in top

ax1 = df_plot.plot(x='wind_direct',y=plot_columns,figsize=(30,18),linewidth=5,kind='line',legend=True, fontsize=16)
ax1.legend(loc=2,fontsize=20)
ax1.set_ylabel('kw',fontdict={'fontsize':24})
ax2 = ax1.twinx()
ax3 = df_plot.plot(x='wind_direct',y=counts_columns,figsize=(30,18),kind='bar',legend=True, ax=ax2, fontsize=16)
ax3.set_title(title,pad=20, fontdict={'fontsize':24})
ax3.set_ylabel('counts',fontdict={'fontsize':24})
ax3.legend(loc=1,fontsize=20);