Monthly Philippine Agro-climatic Review and Outlook

May 2024

  • During the month of May, the weather systems that affected the country were easterlies, localized thunderstorms, frontal systems, shearlines, low-pressure area (LPA), intertropical convergence zone (ITCZ), Southwest Monsoon (Habagat) and tropical cyclone (TC) “Aghon”
  • During the passage of Typhoon (TY) “Aghon” (23-29 May 2024), significant rains were experienced over the western section of Luzon, Aurora, CALABARZON, Bicol Region, Western and Eastern Visayas. Based from the Situational Report of NDRRMC (06 June 2024), 942 hectares of crops were damaged due to TY “Aghon” and with an estimated cost of damaged to agriculture of Php 86M while 163,709.49 hectares of crops weredamaged due to El Niño with an estimated cost of damage to agriculture of Php 9.5B (as of 07 June 2024)
  • Drought condition were experienced over Luzon (Abra, Apayao, Batanes, Batangas, Benguet, Cagayan, Camarines Norte, Camarines Sur, Catanduanes, Cavite, Ifugao, Ilocos Norte, Ilocos Sur, Isabela, Kalinga, La Union, Laguna, Marinduque, Masbate, Metropolitan Manila, Mountain Province, Nueva Ecija, Nueva Vizcaya, Occidental Mindoro, Oriental Mindoro, Palawan, Quezon, Rizal, Romblon), Visayas (Aklan, Antique, Biliran, Bohol, Capiz, Cebu, Eastern Samar, Guimaras, Iloilo, Leyte, Negros Occidental, Negros Oriental, Northern Samar, Samar, Siquijor, Southern Leyte), and Mindanao(Agusan del Norte, Basilan, Bukidnon, Camiguin, Dinagat Islands, Lanao del Norte, Lanao del Sur, Misamis Occidental, Misamis Oriental, Sulu, Surigao del Norte, Tawi-Tawi, Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay, Maguindanao).
  • Generally, way below to below normal rainfall conditions were experienced over Palawan, Western and Central Visayas and Mindanao. Meanwhile, near to above normal rainfall conditions were experience over the rest of the country (Figure 1). Tayabas, Quezon Synoptic Station recorded the highest rainfall amount for the month of May (498.3mm), followed by Infanta Synoptic Station (459.1mm) and Baguio City (351.2 mm). (Figure 1)
  • Derived Soil Moisture Condition (rainfed areas; Figure 3): o Wet – Ilocos Norte, Baguio City, Aurora, Zambales, Quezon, and Eastern Samar o Moist – Ilocos Sur, Isabela, Nueva Vizcaya, Bataan, Pampanga, Tarlac, Romblon, Oriental Mindoro, Legaspi, Masbate, Zamboanga del Norte, National Capital Region, rest of Cordillera Administrative Region, rest of Calabarzon, rest of Samar provinces o Dry – Rest of the country
  • Generally, near-average to warmer than average mean surface air temperatures were observed across the country (Figure 2). Munoz recorded the highest maximum temperature of 40.0°C (May 5 &8) while the coldest temperature was recorded in BSU La Trinidad Synoptic Station at 13.4°C (May 11).
  • Guiuan, Eastern Samar obtained the highest heat index during the month of May with 55°C (May 26) followed by Dagupan City Synoptic Station in Pangasinan with 50°C (May 13), and Aparri, Cagayan with 49°C heat index (May 12). The Heat Index is a human discomfort index that gives the apparent temperature on what humans perceive or feel as the temperature (from the surroundings) affecting the body. High air temperature and high relative humidity results to high apparent temperature.
  • Press Release: ONSET OF THE RAINY SEASON (29 May 2024). The occurrence of scattered rainshowers, frequent thunderstorms, the passage of Typhoon “Aghon”, and the Southwest Monsoon (Habagat) over the past few days have brought significant rains over the western sections of Luzon and Visayas signifies the start of the rainy season in the country. Moreover, the high chance of La Niña conditions to develop by the July-August-September period increases the likelihood of above-normal rainfall conditions in some areas of the country, especially towards the end of the year. On the other hand, there may be breaks in rainfall that extend over a few days or weeks, also referred to as monsoon breaks.
Land and Seedbed Preparation (including preparation for garden plot, urban gardening, and upland farms), (irrigated and rainfed farms)
  • Ilocos Region, Cagayan Valley, Cordillera Administrative Region, Central Luzon, National Capital Region, CALABARZON, MIMAROPA, Bicol Region, Western Visayas, Eastern Visayas, Zamboanga Peninsula, Northern Mindanao, Davao Region, Caraga and BARMM
Planting and Transplanting (broadcasting / direct seeding – for rice, corn, conventional way/ by rows - other cash crops)
  • Rice – Central Luzon, MIMAROPA, Eastern Visayas
  • Corn – Cagayan Valley, MIMAROPA, Eastern Visayas, Northern Mindanao

Vegetative Stage (tillering, head development; growing – other cash crops)
  • Rice – Ilocos Region, Cagayan Valley, Central Luzon, MIMAROPA, Western Visayas, Eastern Visayas, Zamboanga Peninsula, and SOCCSKSARGEN
  • Corn – Central Luzon, Central Visayas, Eastern Visayas, SOCCSKSARGEN
  • abaca, avocado, durian, mangosteen, marang, pomelo, dragon fruit, pineapple, star apple, turnip, guyabano, aratilis, lanzones, guava, cashew, atis, strawberry, papaya, banana, mango, jackfruit, rambutan, coconut, chayote, string bean, eggplant, sweet potato, patola, pechay, ampalaya, okra, malunggay, mustard, kangkong, alugbati, jute, squash, tomato, upo, cassava, sweet pepper, mushroom, beans, sweet peas, cabbage, carrot, onion, ginger, broccoli, beets, potato, Baguio beans, onion leeks, lettuce, taro, long chili, winged bean, tamarind, lemongrass, pandan, sampaloc, chili, mung bean, camote tops, fern leaves, soybean, calamansi, kamias, ube, cadios, cucumber, alugbati, patani, cauliflower, celery, peanut, snap bean, rubber, lemon, tobacco, sugarcane, cacao, coffee, pili, condol, alukon, sweet pepper, tobacco, dalandan, melon
Flowering Stage (Heading – rice; Tasseling/Silking – corn)
  • Rice – Cagayan Valley, Cordillera Administrative Region, Central Luzon, CALABARZON, MIMAROPA, Bicol Region, Western Visayas, Central Visayas, Eastern Visayas Zamboanga Peninsula, Northern Mindanao, SOCCSKSARGEN, and BARMM
  • Corn – Ilocos Region, Cagayan Valley, Cordillera Administrative Region, Central Luzon, CALABARZON, MIMAROPA, Bicol Region, Central Visayas, Eastern Visayas, Zamboanga Peninsula Northern Mindanao Davao Region, SOCCSKSARGEN, and BARMM
Maturing/Ripening
  • Rice –Cagayan Valley, Central Luzon, Cordillera Administrative Region, CALABARZON, MIMAROPA, Bicol Region, Central Visayas, Eastern Visayas, Zamboanga Peninsula, Northern Mindanao, Davao Region, SOCCSKSARGEN, Caraga and BARMM
  • Corn –Cagayan Valley, Central Luzon, MIMAROPA, Central Visayas, Eastern Visayas, Zamboanga Peninsula, Northern Mindanao Davao Region, SOCCSKSARGEN, Caraga and BARMM
Harvesting Stage
  • Rice – Ilocos Region, Cagayan Valley, Cordillera Administrative Region, Central Luzon, National Capital Region, CALABARZON, MIMAROPA, Bicol Region, Western Visayas, Central Visayas, Eastern Visayas, Zamboanga Peninsula, Northern Mindanao, Davao Region, SOCCSKSARGEN, and Caraga
  • Corn – Ilocos Region, Cagayan Valley, Cordillera Administrative Region, CALABARZON, MIMAROPA, Bicol Region Eastern Visayas, Zamboanga Peninsula, Northern Mindanao, SOCCSKSARGEN, Caraga and BARMM
  • lemon, strawberry, star apple, turnip, dragon fruit, strawberry, guyabano, melon, watermelon, avocado, turnip, mango, aratilis, jackfruit, pineapple, pili, rambutan, lanzones, apple guava, pomelo, durian, mangosteen, guava, banana, coconut, papaya, pineapple, mung bean, squash, ampalaya, string bean, peanut, patola, malunggay, eggplant, okra, camote tops, tomato, pechay, onion, garlic, sweet potato, ginger, cassava, chayote, cucumber, cabbage, broccoli, Baguio beans, beets, potato, onion leeks, carrot, lettuce, bell pepper, upo, long chili, chili pepper, cauliflower, radish, celery, winged bean, banana blossom, pechay Baguio, kangkong, alugbati, jute, radish, habichuelas, mustard, tomato, taro, camansi, ube, mustard, mushroom, cadios, pandan, lemongrass, spring onion, calamansi, caimito, papaya, mango, sugarcane, coffee, cacao, tobacco
Farm Operations:
  • Land cultivation and preparation
  • Irrigation and watering management
  • Mulching
  • Pruning
  • Removal of weeds
  • Grass cutting
  • Spraying of herbicides, pesticides, and insecticides
  • Applying of fertilizers
  • Seed distribution o Field monitoring
  • Furrowing
  • Delivery of fresh produce
  • Copra making and drying
  • Drying, storing and milling of rice and corn
  • Ploughing
  • Sucker removing
  • Harrowing
  • Urban vegetable gardening
  • Cleaning of garden and farms
  • Pest and diseases monitoring and management
  • The weather systems that will likely affect the country during the month of June are easterlies, ridge of high pressure area, localized thunderstorms, ITCZ, LPAs, shearline, frontal system, Southwest Monsoon and one (1) or two (2) tropical cyclones (TC) may enter or develop inside the Philippine Area of Responsibility (PAR)
  • Below normal rainfall over the northwestern section of Luzon, while near normal rainfall condition is expected over the rest of the country (Figure 4).
  • Generally, average to warmer than average temperatures will be experienced over the whole country with slightly cooler to cooler temperatures over Masbate, Romblon, Occidental Mindoro and Northern Palawan (Figure 5).
  • Luzon will have extreme temperature range of 15.0ºC – 28.7ºC for upland farms while 19.0ºC –39.7ºC for other farms in Luzon; the lowland farms in Visayas will have 21.1ºC – 38.8ºC; while the upland farms in Mindanao will have 17.0ºC – 34.5ºC and 21.0ºC – 39.4ºC for lowland farms
  • El Niño Southern Oscillation (ENSO) Alert and Warning System: EL NIÑO ADVISORY No. 12 (Final) / LA NIÑA WATCH. El Niño in the tropical Pacific Ocean has ended, as both oceanic and atmospheric indicators have returned to El Niño Southern Oscillation (ENSO)-neutral levels. Moreover, a transition from ENSO-neutral to La Niña conditions remains likely (about 69% chance) by the July-AugustSeptember 2024 season. The DOST-PAGASA ENSO Alert and Warning System is now lowered to Inactive (ENSO-neutral) while the La Niña Watch remains in effect.
  • PAGASA will continue to closely monitor the developing La Niña (Figure 6). All government agencies concerned and the general public are encouraged to stay updated and use the information for guidance in taking precautionary measures to mitigate the adverse impacts of these phenomena.
  • Mulching must be done to prevent the rapid loss of soil moisture and to maintain the good growing condition of crops. Prepare for wetter conditions. Enhance drainage to prevent waterlogging and monitor for pest and disease outbreaks. Use resistant crop varieties and consider staggered planting to avoid peak wet periods. Increased humidity can influence pest and disease prevalence. Conduct of regular monitoring of farm fields and timely interventions are crucial
  • PAGASA will continue to closely monitor the climate conditions that may affect the country and updates shall be issued as appropriate. For further information, please contact the Climatology and Agrometeorology Division (CAD) at telephone number 8284-0800, local 4915.

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