 <p>The <code>tsplot</code> of seaborn is not meant to plot a simple timeseries line plot, but to plot uncertainties, see:<a href="https://stanford.edu/~mwaskom/software/seaborn/generated/seaborn.tsplot.html">https://stanford.edu/~mwaskom/software/seaborn/generated/seaborn.tsplot.html</a>. </p> <p>For a line plot, you can simply do</p> <pre><code>df.set_index('Date').plot() </code></pre>