 Humidity levels are usually very high all year round . Manila has a distinct dry season from December through May , and a relatively lengthy wet season that covers the remaining period with slightly cooler temperatures . In the rainy season it rarely rains all day but the rainfall is very heavy during short periods . Typhoons usually occur from June to September . 
 Humidity levels <a href='drop_aux' title='1'><mark>are</mark></a>usually very high all year round . Manila <a href='got' title='2'><mark>has</mark></a> a distinct dry season from December through May , and a relatively lengthy wet season <a href='null_relcl' title='3'><mark>that</mark></a><a href='uninflect' title='4'><mark>covers</mark></a> the remaining period with slightly cooler temperatures . In the rainy season it rarely <a href='uninflect' title='5'><mark>rains</mark></a> all day but the rainfall <a href='drop_aux' title='6'><mark>is</mark></a>very heavy during short periods . Typhoons usually occur from June to September . 
Humidity levels usually very high alll year round . Manila got a distinct dry season from December thru May , and a relatively lengthy wet season cover the remaining period wit slightly cooler temperatures . In the rainy season it rarely rain all day but the rainfall very heavy durin short periods . Typhoons usually occur from June to September .