Scattered thunderstorms will sweep across much of the Philippines on Sunday, June 14, 2026, with the most severe conditions expected over western Mindanao, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). The state weather bureau issued its 24-hour public weather forecast at 4:00 AM Sunday, valid through 4:00 AM on Monday, June 15.
Easterlies — a seasonal wind pattern blowing in from the Pacific Ocean — are the primary driver of wet weather across Mindanao and the eastern sections of Southern Luzon and Visayas. Localized thunderstorm activity will extend rainy conditions to Metro Manila and the rest of the archipelago throughout the day.
Mindanao: Heaviest Rains Centered on Western Areas
Residents of Zamboanga Peninsula, Basilan, and Tawi-Tawi should prepare for the most disruptive weather of the day. PAGASA forecasts cloudy skies with scattered rains and thunderstorms for these areas, driven by the easterlies affecting the southern Philippines. The agency specifically warns of possible flash floods or landslides due to moderate to at times heavy rainfall.
Those living near riverbanks, low-lying coastal areas, and hilly or mountainous terrain in Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay, Basilan, and the Tawi-Tawi island group are advised to monitor local conditions closely and follow any advisories issued by their local disaster risk reduction and management offices.
The rest of Mindanao — including the Davao Region, Soccsksargen, Caraga, the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM) outside of the Zamboanga Peninsula cluster, and the Northern Mindanao provinces — can expect partly cloudy to cloudy skies with isolated rainshowers or thunderstorms. While the frequency of rain is lower than in western Mindanao, PAGASA cautions that flash floods or landslides remain possible during periods of severe thunderstorms.
Visayas: Eastern Provinces Under Easterly Influence
Eastern Visayas, which includes Leyte, Southern Leyte, Eastern Samar, Northern Samar, Samar, and Biliran, falls under the direct influence of the easterlies on Sunday. PAGASA forecasts partly cloudy to cloudy skies with isolated rainshowers or thunderstorms for the sub-region, with flash floods and landslides a concern should any thunderstorm become severe.
The rest of the Visayas — including the Western Visayas provinces of Iloilo, Capiz, Aklan, Antique, and Guimaras, as well as Central Visayas encompassing Cebu, Bohol, Negros Oriental, and Siquijor — will experience partly cloudy to cloudy skies with isolated rainshowers or thunderstorms associated with localized thunderstorm development. Residents across all Visayas provinces should remain mindful of rapidly changing conditions, particularly during the afternoon and early evening when thunderstorms tend to intensify.
Luzon: Metro Manila and Provinces See Isolated Storms
Metro Manila and the vast majority of Luzon are forecast to have partly cloudy to cloudy skies with isolated rainshowers or thunderstorms on Sunday, June 14. PAGASA attributes this activity to localized thunderstorms rather than a large-scale weather system, meaning rainfall will be uneven — some neighborhoods may experience brief but intense downpours while others remain dry.
The eastern sections of Southern Luzon — which include Quezon province, Aurora, and parts of the Bicol Region facing the Pacific — are under the direct influence of the easterlies. The Bicol Region as a whole, covering Camarines Norte, Camarines Sur, Albay, Sorsogon, Catanduanes, and Masbate, can expect partly cloudy to cloudy skies with isolated rainshowers or thunderstorms, with flash floods and landslides possible during severe thunderstorm episodes.
Northern Luzon, including the Ilocos Region, Cagayan Valley, the Cordillera Administrative Region, and Central Luzon provinces, falls under the general nationwide outlook of isolated rainshowers and thunderstorms driven by localized activity. Afternoon thunderstorms are common during this time of year, and residents across Luzon are reminded that even isolated storms can produce localized but intense flooding in urban and low-lying areas.
Temperature and Humidity
PAGASA's weather station at Science Garden in Diliman, Quezon City recorded a maximum temperature of 32.5 degrees Celsius at 11:00 AM on Saturday, June 13, and a minimum of 26.2 degrees Celsius at 5:00 AM the same day. Relative humidity ranged from a high of 92 percent at 5:00 AM to a low of 62 percent at 11:00 AM, reflecting the warm and muggy conditions typical of the June season in Metro Manila.
Residents across the country should expect warm and humid conditions between rain events, with heat and humidity likely building through the morning before afternoon thunderstorms bring temporary relief.
Wind and Coastal Water Conditions
Winds across the country will be light to moderate on Sunday. Northern Luzon and the western sections of Central and Southern Luzon will experience south to southwest winds, while the rest of the country will see southwest to southeast winds. Both areas fall within the light to moderate intensity range.
Coastal waters will be slight to moderate. Seas off Northern Luzon and the western coasts of Central and Southern Luzon are forecast to have wave heights of 0.6 to 1.8 meters — conditions that may still pose risks for small vessels. The rest of the country's coastal waters will see wave heights of 0.6 to 1.2 meters, also rated slight to moderate. Fisherfolk and operators of small watercraft are advised to exercise caution, particularly in areas near Mindanao where thunderstorm activity is more frequent.
Astronomical and Tidal Information for Metro Manila
Sunday's sunrise over Metro Manila is at 5:27 AM, with sunset at 6:26 PM, giving residents nearly 13 hours of daylight. The moon rises at 4:05 AM and sets at 5:39 PM, with an illumination of just 1 percent — essentially a new moon — meaning nights will be dark with minimal natural light.
For Manila Bay, PAGASA's tidal predictions (courtesy of NAMRIA) show a high tide of 1.35 meters at 8:23 AM and a low tide of -0.2 meters at 5:01 PM on Sunday. Residents and those with activities along Manila Bay should take note of these tidal conditions, particularly the low tide in the late afternoon.
Safety Reminders
PAGASA's forecast highlights flash floods and landslides as the primary hazards for Sunday. These risks apply most acutely to Zamboanga Peninsula, Basilan, and Tawi-Tawi, but are relevant to all areas of the country during severe thunderstorm episodes.
Residents in flood-prone areas and communities near slopes, hillsides, and mountains are urged to stay informed and heed any evacuation orders issued by local authorities. Motorists should avoid flooded roads and underpasses, and parents are advised to monitor weather conditions if children have outdoor activities scheduled.
Stay updated on the latest weather conditions and warnings through official PAGASA advisories. Monitor official PAGASA updates at pagasa.dost.gov.ph.