Mindanao — Cloudy skies with scattered rains and thunderstorms are expected to prevail over large parts of Mindanao as the Intertropical Convergence Zone (ITCZ) continues to affect the region, according to the latest Regional Weather Forecast issued by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) – Mindanao (MINPRSD).
In its 5:00 a.m. bulletin on December 20, 2025, PAGASA said the Zamboanga Peninsula, Sarangani, South Cotabato, Sultan Kudarat, and Basilan will experience cloudy skies with scattered rains and thunderstorms throughout the day until 5:00 a.m. tomorrow. Moderate to at times heavy rainfall may trigger possible landslides and flash floods, especially in low-lying and mountainous areas.
The rest of Mindanao, including Northern Mindanao, the Davao Region, Caraga, and parts of the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), will have partly cloudy to cloudy skies with isolated rainshowers or thunderstorms, also due to the ITCZ. PAGASA cautioned that severe thunderstorms could still result in localized flash floods or landslides.
Zamboanga Peninsula Under Rainy Conditions
Zamboanga City and the provinces of Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay, and Isabela City are forecast to have cloudy skies with rainshowers and thunderstorms. Temperatures in the area will range from 22°C to 32°C. Coastal waters will be slight to moderate, with wave heights between 0.6 and 2.5 meters, while winds will be light to moderate coming from the east to northeast.
Northern Mindanao and Davao Region
In Northern Mindanao, including Bukidnon, Camiguin, Lanao del Norte, Misamis Occidental, and Misamis Oriental, weather conditions will be partly cloudy to cloudy with occasional rainshowers or thunderstorms. Temperatures may drop as low as 19°C in higher areas of Bukidnon and reach up to 31°C in coastal provinces.
Metro Davao and the provinces of Davao del Norte, Davao del Sur, Davao Oriental, Davao de Oro, and Davao Occidental will also experience similar conditions. PAGASA noted that Davao Occidental may have generally cloudier skies with more frequent rain and thunderstorms. Temperatures across the Davao Region are expected to range from 23°C to 32°C.
SOCCSKSARGEN and Caraga
In the SOCCSKSARGEN region, South Cotabato, Sultan Kudarat, and Sarangani are forecast to have cloudy skies with rainshowers and thunderstorms, while North Cotabato will have partly cloudy to cloudy skies with isolated rains. Temperatures in the region may reach up to 32°C.
Meanwhile, Caraga provinces, including Agusan del Norte, Agusan del Sur, Surigao del Norte, Surigao del Sur, and Dinagat Islands, will experience cloudy to partly cloudy skies with rainshowers and thunderstorms. Coastal conditions remain slight to moderate, posing possible risks for small seacraft during thunderstorms.
BARMM Areas Also Affected
In BARMM, Basilan is expected to have cloudy skies with rainshowers and thunderstorms, while Cotabato City, Lanao del Sur, Sulu, Tawi-Tawi, Maguindanao del Norte, and Maguindanao del Sur will have partly cloudy to cloudy skies with isolated to scattered rainshowers. Temperatures in these areas may range from 19°C to as high as 33°C.
Sea and Wind Conditions
Across Mindanao, winds will generally be light to moderate from the east to northeast. Sea conditions will be slight to moderate, but PAGASA advised fishermen and operators of small sea vessels to exercise caution, especially during thunderstorms when waves may suddenly become rough.
Public Advisory
PAGASA urged local government units and residents, particularly those in landslide- and flood-prone areas, to remain alert and take precautionary measures. The public is advised to monitor weather updates and heed warnings from local disaster risk reduction and management offices.
For further updates and weather advisories, the public may contact PAGASA through its hotline numbers or visit its official website at bagong.pagasa.dost.gov.ph.