The easterlies or winds from the Pacific Ocean will bring hot and humid weather over the whole archipelago throughout the week.
Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGSA) weather specialist Ariel Rojas said warm and humid weather with possible rain showers and thunderstorms in the late afternoon to early evening will prevail in the country.
He said it is less likely that a low pressure area or tropical cyclone may form near or inside the Philippine area of responsibility in the next three to five days.
The southwest monsoon or "habagat" has been on a break since last week, and is seen to last for a few more days.
A monsoon break usually lasts for several days to two weeks.
Forecast temperatures in the next three days will be 25 to 33 degrees Celsius in Metro Manila; 24 to 36 degrees Celsius in Tuguegarao City; 16 to 26 degrees Celsius in Baguio City; 25 to 31 degrees Celsius in Cebu City; and 24 to 33 degrees Celsius in Davao City.
Although the "habagat" is weak, Rojas still advised the public to remain alert for possible flash floods or landslides in the event of severe thunderstorms that may occur in the late afternoon or evening.
Severe thunderstorms are often associated with bursts of heavy rainfall, lightning, thunder, and gusty winds that usually last up to two hours, Rojas said.
PAGASA, on Tuesday, has not issued a gale warning across the country's coasts so fisherfolk and seafarers are safe to sail.
Slight to moderate seas, except during thunderstorms, are expected over the entire archipelago.