The intertropical convergence zone (ITCZ), or the region where the trade winds from the northern and southern hemispheres converge, may bring rain showers and thunderstorms over Caraga and Davao Region in the next 24 hours.
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said cloudy skies with scattered light to moderate with at times heavy rain showers and thunderstorms may affect Agusan del Norte, Agusan del Sur, Dinagat Islands, Surigao del Norte, Surigao del Sur, Davao de Oro, Davao del Norte, Davao del Sur, Davao Oriental, and Davao Occidental.
PAGASA warned against possible flash floods or landslides during the occurrence of moderate to heavy rains.
The northeast monsoon also continues to prevail, which may bring cloudy skies with light rains over Batanes, Cagayan, Isabela, Quirino, Nueva Vizcaya, Abra, Apayao, Benguet, Ifugao, Kalinga, Mountain Province, Aurora, and northern part of Quezon.
Partly cloudy to cloudy skies with isolated light amihan rains may also affect Metro Manila, Ilocos Norte, Ilocos Sur, La Union, Pangasinan, Bulacan, Tarlac, Pampanga, Bataan, Zambales, Nueva Ecija, the rest of Quezon, Cavite, Laguna, Batangas, and Rizal.
PAGASA however said the northeast monsoon rains may not have a signficant impact over these areas.
Meanwhile, the rest of the country will have partly cloudy to cloudy skies with isolated rain showers caused by localized thunderstorms. Flash floods or landslides may occur during severe thunderstorm activity, the State weather bureau advised.
PAGASA said a gale warning remains in effect on Tuesday due to strong to gale force winds associated with the surge of amihan.
Rough to very rough seas may affect the northern and western seaboards of Northern Luzon.
As sea travel over these waters is still risky, fishing boats and other small sea vessels were advised to prevent from travelling out to sea, while larger sea vessels were asked to remain alert against big waves.