JSFiddle - React, Tailwind, and code Playground

HTML

<select id="meses">
    <option value="0">Janeiro</option>
    <option value="1">Fevereiro</option>
    <option value="2">Março</option>
    <option value="3">Abril</option>
</select>

<p class="nomMes">Abril</p>

JavaScript

$(document).ready(function () {
    var mes = $('.nomMes').text().trim();
    var opt = $('#meses option').filter(function(el) {
        return $(this).text().trim() === mes;
    });
    
    opt.attr('selected', true);
});