San Mateo experiences a warm and relatively consistent climate year-round, with temperatures rarely dipping below 25°C. The hottest months are March and June, with average highs of around 30°C and 27°C respectively. However, the temperature cools down slightly during the latter part of the year, particularly in September when it averages around 25°C. The cooler months do not bring any significant drop in temperature, indicating a relatively stable climate. Overall, the region enjoys a warm and pleasant weather condition throughout the year.