El Niño · drinking water

How much drinking water to store

Count the people in your home. Pick the weather and the number of days. We show how many bottles to buy.

Brownouts can also stop electric water pumps. A few days of stored water keeps the family safe either way.

Quick start
Who is in your home?
Weather
Each one needs about 1.5 L more on a hot day.
Your supply

Water per person, per day

Normal-day amounts come from the Philippine Dietary Reference Intakes 2015 (PDRI). PDRI is the daily-needs guide from DOST-FNRI, the government's nutrition institute. It uses average Filipino body weights.

Hot-day amounts add sweat lost in El Niño heat, 32°C and up. That extra is our planning estimate. It is not an FNRI figure.

Drinking water per person, per day
PersonNormal day (PDRI)Hot El Niño day

PDRI water includes water from food. Filipino meals with rice and soup cover part of it, so these totals carry a safety margin. For outdoor or heavy work, add about 1.5 L per person on hot days.

Signs someone needs more water

Drink more when sweating heavily. Watch for dark urine, dizziness and headache. These are guidance figures, not medical advice. See a doctor if signs get worse.

Source for normal-day amounts: DOST-FNRI, Philippine Dietary Reference Intakes 2015.