The entire Philippines will experience unsettled weather on Friday, June 12, 2026, with rainshowers and thunderstorms expected from Luzon to Mindanao, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). The agency's 24-hour public weather forecast, issued at 4:00 AM on June 12 and valid until 4:00 AM on June 13, warns that severe thunderstorms could trigger flash floods and landslides nationwide — a risk that applies to every Filipino regardless of region.
While no tropical cyclone or weather system is currently threatening the archipelago, the easterlies — a persistent flow of winds originating from the Pacific Ocean — are exerting their influence on the eastern sections of Southern Luzon, the Visayas, and Mindanao. Elsewhere, including the capital region, localized thunderstorm activity will be the primary driver of wet conditions throughout the day.
National Weather Picture: Cloudy Skies and Scattered Thunderstorms
PAGASA's synopsis for the day is straightforward: the easterlies are the dominant atmospheric feature affecting the country's eastern flank, while localized thunderstorms — the kind that develop due to daytime heating and humidity — will generate rain across other parts of the country. In practical terms, this means that no part of the Philippines should expect a fully dry day on June 12.
For most Filipinos, the weather will be a familiar mix of partly cloudy to cloudy skies in the morning, with isolated rainshowers or thunderstorms developing as the day progresses — typically picking up intensity in the afternoon and early evening. PAGASA emphasizes that when thunderstorms become severe, the risks of flash flooding and landslides become real, particularly in flood-prone urban areas and in communities situated on hillsides or near mountain slopes.
Luzon: Metro Manila and the Northern Regions
Metro Manila and the rest of Luzon not directly facing the Pacific — which includes the Ilocos Region, Cagayan Valley, Central Luzon, CALABARZON, MIMAROPA, and the Cordillera Administrative Region — will experience partly cloudy to cloudy skies with isolated rainshowers or thunderstorms. According to PAGASA, these weather disturbances are caused by localized thunderstorms, the type that typically develop during the heat of the afternoon.
Residents across Metro Manila, where the urban heat island effect can intensify such events, should be mindful of sudden heavy downpours that could cause localized flooding, particularly in low-lying areas and those with historically poor drainage. Commuters are advised to monitor conditions closely, especially during the afternoon rush hour when thunderstorm activity is most likely to peak.
In Extreme Northern Luzon — covering the northernmost provinces such as Batanes and the Ilocos coast — winds will blow from the south to southwest at light to moderate speeds. Coastal waters in this area are forecast to have wave heights of 0.6 to 1.5 meters, classified as slight to moderate. Small boat operators and fisherfolk should factor these conditions into their plans before heading out to sea.
The Bicol Region, which faces the Pacific and is directly influenced by the easterlies, falls into the category of areas with the most consistent chance of rain. PAGASA forecasts partly cloudy to cloudy skies with isolated rainshowers or thunderstorms for the region, driven by the easterlies. Flash floods and landslides remain a concern for Bicolanos, particularly in mountainous provinces such as Camarines Sur, Albay, and Sorsogon.
Visayas: Eastern Sections Under Easterly Influence
The Visayas will see a split in weather character on June 12. Eastern Visayas — comprising Samar, Eastern Samar, Northern Samar, and Leyte — will bear the more direct influence of the easterlies, with partly cloudy to cloudy skies and isolated rainshowers or thunderstorms expected. As with other easterly-affected areas, the risk of flash floods and landslides during severe thunderstorm events is noted by PAGASA.
The western and central portions of the Visayas — including Western Visayas and Central Visayas — fall under the broader "rest of the country" forecast, meaning localized thunderstorms will be the weather driver for these areas. Residents of Cebu, Iloilo, Bacolod, and surrounding provinces should expect similar conditions: partly cloudy to cloudy skies with the chance of isolated afternoon or evening thunderstorms.
Winds across Palawan and the Visayas will blow from the southeast to northeast at light to moderate intensity. Coastal wave heights in this zone are forecast at 0.6 to 1.2 meters, within the slight to moderate range. Sea travel remains manageable under these conditions, but mariners should remain watchful for sudden changes during thunderstorm activity.
Mindanao: Caraga and Davao Most Affected
In Mindanao, the areas of Caraga and the Davao Region — both of which face the Philippine Sea on the island's eastern side — will be most directly affected by the easterlies. PAGASA forecasts partly cloudy to cloudy skies with isolated rainshowers or thunderstorms for both regions, with the same flash flood and landslide warnings that apply to all easterly-affected areas.
The rest of Mindanao — including Northern Mindanao, Soccsksargen, the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), and the Zamboanga Peninsula — will experience isolated rainshowers or thunderstorms generated by localized thunderstorm activity. Despite being further from the direct path of the easterlies, these areas are not exempt from the risk of severe weather, and residents should remain alert throughout the day.
Winds across Mindanao will blow from the southeast to northeast direction at light to moderate speeds, consistent with easterly flow conditions. Coastal wave heights around Mindanao are similarly forecast at 0.6 to 1.2 meters.
Temperature and Humidity: A Hot and Humid Day
Despite the cloudy and wet conditions, temperatures will remain warm across the country. PAGASA's weather station at the Science Garden in Diliman, Quezon City recorded temperatures for the 24-hour period ending at 8:00 PM yesterday: a maximum of 34.6°C at 2:00 PM and a minimum of 26.2°C at 5:00 AM. Relative humidity ranged from a low of 59% to a high of 90%, underscoring the muggy, uncomfortable conditions typical of the Philippine wet season.
Filipinos can expect a similar temperature profile on June 12 — warm, humid, and punctuated by afternoon thunderstorms. Those with outdoor activities planned are advised to schedule them in the morning hours and wrap up before midday, when thunderstorm development typically becomes more likely.
Tides and Coastal Information for Metro Manila
For coastal communities in and around Metro Manila, PAGASA provides the following tidal predictions for Manila Bay (courtesy of NAMRIA) for today, June 12:
High tide: 1.03 meters at 7:11 AM | Low tide: 0.14 meters at 2:56 PM | High tide: 0.46 meters at 9:22 PM | Low tide: 0.43 meters at 11:39 PM
Sunrise today is at 5:27 AM and sunset at 6:25 PM. The moon rises at 2:17 AM and sets at 3:24 PM, with an illumination of just 11% — meaning very little moonlight tonight, which may affect visibility for those at sea after dark.
Safety Reminders: What You Should Do
PAGASA's hazard note is consistent across all regions: possible flash floods or landslides during severe thunderstorms. This is not a theoretical risk — the Philippines' combination of mountainous terrain, flood-prone lowlands, and intense tropical rainfall means that even isolated thunderstorm events can produce dangerous conditions with little warning.
Filipinos in all regions are reminded to avoid riverbanks, drainage channels, and low-lying areas during heavy rain. Those in landslide-prone communities — particularly in the hilly provinces of Luzon, the Visayas, and Mindanao — should have an evacuation plan ready and heed any advisories issued by local disaster risk reduction and management offices (LDRRMOs).
Motorists are advised to avoid flooded roads and underpasses. Parents should check weather conditions before sending children to school, especially in areas prone to flash floods. Outdoor workers — construction crews, farmers, delivery riders — should be aware of the afternoon thunderstorm risk and take shelter promptly when lightning and heavy rain develop.
This forecast was prepared by LMAL and checked by RBB at PAGASA's Weather and Flood Forecasting Center, located at Senator Miriam P. Defensor-Santiago Avenue, Brgy. Central, Quezon City.
Monitor official PAGASA updates at pagasa.dost.gov.ph.