The summer season in the Philippines begins in March and ends in May or the first week of June. It’s hot and humid for us each summer because of the High-Pressure Area (HPA) Ridge and Easterlies.
Ridge or HPA extension usually affects North and Central Luzon each summer. It brings warm, cozy weather. Easterlies, in turn, are Pacific winds that carry moisture. This can cause severe weather and possibly cause a thunderstorm.
The ridge of high-pressure area (HPA) and easterlies are the reasons why it is
so hot in the Philippines today.