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This website was developed by PAGASA in collaboration with the Japan Meteorological Agency/Tokyo Climate Centre (JMA/TCC), the World Meteorological Organization (WMO) Regional Climate Centre in RA II (Asia). This one-month (running 10-day) probabilistic forecast product is being produced and updated every Thursday by PAGASA;
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This product is based on the output of one-month numerical prediction from Global Prediction Center for Long-range Forecast (GPC) Tokyo and the details of its prediction system are available here: ds.data.jma.go.jp/tcc/tcc/products/model/outline/index.html
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This sub-seasonal forecast (10-day forecast, but usually weekly or pentad) could provide advance notice of potential hazards related to climate, weather and hydrological events across the country that will eventually support various economic sectors (agriculture, water resource management and others).
Probabilistic Forecast Map
The Subseasonal to Seasonal Forecast
Subseasonal predictions contribute to fill the gap between weather and seasonal time scales.
Objectives:
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Improve forecast skill and understanding on the subseasonal to seasonal timescale with special emphasis on high-impact weather events.
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Promote the initiative’s uptake by operational centers and exploitation by the applications community.
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Capitalize on the expertise of the weather and climate research communities to address issues of importance to the Global Framework for Climate Services.
Initial Condition: June 30, 2025
Week Validity: Jun 30- Jul 06, 2025
Increase of rainfall of 20-60mm is expected in most parts of Luzon while rainfall deficit of 20-60mm is expected in Visayas and Mindanao.
Probability to Exceed 25mm
Probability to Exceed 50mm
Probability to Exceed 100mm
Probability to Exceed 150mm
Probability to Exceed 200mm
Initial Condition: June 30, 2025
Week Validity: Jun 30- Jul 06, 2025
Near average surface air temperature will likely be experienced in most parts of Luzon; Near to Slightly warmer than average surface air temperature is expected in Visayas and Mindanao.
Initial Condition: June 30, 2025
Week Validity: Jun 30- Jul 06, 2025
SW Monsoon affecting the Western Luzon, most of Visayas and Zamboanga Peninsula. Easterlies affecting the rest of the country
Initial Condition: June 30, 2025
Week Validity: Jul 04-10, 2025
Increase of rainfall of 20-80mm is expected in most parts of Luzon and Visayas, 10-30mm in western Mindanao and CAR while rainfall deficit of 10-30mm is expected for the rest of Luzon and Mindanao.
Probability to Exceed 25mm
Probability to Exceed 50mm
Probability to Exceed 100mm
Probability to Exceed 150mm
Probability to Exceed 200mm
Initial Condition: June 30, 2025
Week Validity: Jul 04-10, 2025
Near average to slightly warmer surface air temperature will likely be experienced in most parts of the country.
Initial Condition: June 30, 2025
Week Validity: Jul 04-10, 2025
SW Monsoon affecting most parts of the country.
CPT based Sub-Seasonal Forecasting (Philippines)
CPT is using NCEP CFSv2 (Climate Forecast Systems V.2) forecasts.
NOAA's CPC International Desks
The legend is interpreted as, probability of below average for the brown shaded color and probability of above-average for green shaded color.
Initial Condition: June 26, 2025
Week Validity: Jun 27- July 03, 2025
GCM
PCA
CCA
Probability of receiving below normal rainfall most parts of Luzon while Mindoro, Palawan, Masbate and most parts of Visayas and Mindanao will likely have above normal rainfall.
Probability of receiving above normal rainfall in most parts of northern and central Luzon, some areas in southern Luzon, and western Mindanao while the rest of the country will likely have below normal rainfall.
Probability of receiving above normal rainfall in most parts of northern and central Luzon, some areas in southern Luzon while the rest of the country will likely have below normal rainfall.
CPT based Sub-Seasonal Forecasting (Philippines)
CPT is using NCEP CFSv2 (Climate Forecast Systems V.2) forecasts.
NOAA's CPC International Desks
The legend is interpreted as, probability of below average for the brown shaded color and probability of above-average for green shaded color.
Initial Condition: June 26, 2025
Week Validity: Jul 04-10, 2025
GCM
PCA
CCA
Probability of receiving above normal rainfall in most parts of the country except with some patches of below normal rainfall condition in northeastern Luzon, Marinduque, and Bicol Region.
Probability of receiving above normal rainfall in most parts of Luzon, Visayas, and eastern Mindanao while the rest of Mindanao will likely have below normal rainfall.
Probability of receiving above normal rainfall in most parts of Luzon, Visayas, Zamboanga Peninsula, and eastern Mindanao while the rest of Mindanao will likely have below normal rainfall.
CPT based Sub-Seasonal Forecasting (Philippines)
CPT is using NCEP CFSv2(Climate Forecast Systems V.2) forecasts.
NOAA's CPC International Desks
The legend is interpreted as, probability of below average for the brown shaded color and probability of above-average for green shaded color.
Initial Condition: June 26, 2025
Week Validity: Jul 11-14, 2025
GCM
PCA
CCA
Probability of receiving above normal rainfall in most parts of Ilocos Region, northern part of CAR and Cagayan Valley, the rest of Luzon and Visayas will likely have below normal rainfall.
Probability of receiving below normal rainfall in most parts of Isabela, Quirino, southern Luzon, some areas in Visayas and most parts of Mindanao while the rest of the country will likely have above normal rainfall.
Probability of receiving below normal rainfall in most parts of the country except in Ilocos Region, northern part of CAR and Cagayan Valley, Masbate and some areas in southern Mindanao where above normal rainfall is more likely.
CPT based Sub-Seasonal Forecasting (Philippines)
CPT is using NCEP CFSv2(Climate Forecast Systems V.2) forecasts.
NOAA's CPC International Desks
The legend is interpreted as, probability of below average for the brown shaded color and probability of above-average for green shaded color.
Initial Condition: June 26, 2025
Week Validity: Jun 27-July 05, 2025
GCM
PCA
CCA
Probability of receiving below normal rainfall most parts of Luzon while MIMAROPA, Masbate and most parts of Visayas and Mindanao will likely have above normal rainfall.
Probability of receiving above normal rainfall most parts of Luzon and Panay Island while some areas in southern Luzon, the rest of Visayas and most parts of Mindanao will likely have below normal rainfall.
Probability of receiving above normal rainfall most parts of Luzon, and western Visayas while some areas in southern Luzon, the rest of Visayas and most parts of Mindanao will likely have below normal rainfall.