The Philippines is expected to experience a mix of weather conditions today, May 17, 2026, due to the influence of a Frontal System and the Intertropical Convergence Zone (ITCZ). According to the 4:00 AM advisory from the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), certain regions should prepare for scattered rains and thunderstorms, while others can anticipate isolated rainshowers.
Luzon Weather Forecast
Extreme Northern Luzon will be most affected by the Frontal System. PAGASA specifically forecasts Batanes and the Babuyan Islands to have cloudy skies with scattered rains and thunderstorms. Residents in these areas should be prepared for possible flash floods or landslides due to moderate to, at times, heavy rains.
For the rest of Luzon, including Metro Manila, PAGASA predicts partly cloudy to cloudy skies with isolated rainshowers or thunderstorms. These thunderstorms are more likely to occur in the afternoon or evening due to localized weather patterns. While widespread heavy rainfall is not expected, the public is advised to remain vigilant for potential flash floods or landslides during severe thunderstorms.
Visayas Weather Forecast
The Visayas region is expected to have partly cloudy to cloudy skies with isolated rainshowers or thunderstorms. As with the rest of the country, these localized thunderstorms are more probable during the afternoon and evening hours. The overall risk of widespread heavy rainfall is low, but PAGASA advises residents to stay informed about local weather conditions and take necessary precautions during thunderstorms.
Mindanao Weather Forecast
The Intertropical Convergence Zone (ITCZ) is primarily impacting southern Mindanao. PAGASA forecasts cloudy skies with scattered rains and thunderstorms for the Zamboanga Peninsula, Sultan Kudarat, Sarangani, Lanao del Sur, Maguindanao del Norte, Basilan, and Tawi-Tawi. Similar to Northern Luzon, the public should be aware of the potential for flash floods or landslides due to moderate to, at times, heavy rains. Continuous monitoring of weather updates is strongly advised for these areas.
The rest of Mindanao is likely to experience partly cloudy to cloudy skies with isolated rainshowers or thunderstorms, similar to the Visayas. These localized weather disturbances are expected to be more frequent in the afternoon or evening.
Wind and Coastal Water Conditions
PAGASA's forecast also includes information on wind and coastal water conditions. In Northern Luzon, winds are expected to be moderate, coming from the northeast. This will result in moderate coastal waters with wave heights ranging from 1.2 to 2.5 meters.
For the rest of Luzon and the Visayas, winds will be light to moderate, also coming from the northeast. Coastal waters in these regions are expected to be slight to moderate, with wave heights ranging from 0.6 to 1.8 meters.
Mindanao will experience light to moderate winds from the east to northeast. Coastal waters are expected to be slight to moderate, with wave heights ranging from 0.6 to 1.2 meters.
Temperature and Humidity
Yesterday, at the PAGASA Weather Station in Science Garden, Diliman Quezon City, the maximum temperature recorded was 35.1°C at 3:00 PM, while the minimum temperature was 26.5°C at 6:30 AM. The relative humidity ranged from 90% to 50%.
Safety Reminders
PAGASA reminds the public to take necessary precautions during periods of heavy rainfall and thunderstorms. Here are some safety tips:
- Stay indoors if possible during heavy rain and thunderstorms.
- Avoid crossing flooded areas.
- Monitor weather updates and advisories from PAGASA.
- If you live in a flood-prone area, be prepared to evacuate.
- Keep emergency supplies on hand, including food, water, and a flashlight.
- Be aware of the potential for landslides in mountainous areas.
Tidal Information
According to the National Mapping and Resource Information Authority (NAMRIA), the tidal predictions for Manila Bay are as follows:
- Today: Low tide at 1:39 AM (0.4 m), High tide at 9:33 AM (1.26 m), Low tide at 5:44 PM (-0.28 m)
Sunrise today was at 5:28 AM, and sunset will be at 6:17 PM. Moonrise was at 5:25 AM, and moonset will be at 6:54 PM. The moon illumination is at 1%.
Monitor official PAGASA updates at pagasa.dost.gov.ph