Water
How Much Water Should You Store?
Drinking, cooking and hygiene needs, plus how to store water safely and treat it when supplies are uncertain.
18 January 2026 · 7 min read
Scenario
Extreme Heat
Prolonged high temperatures stressing health, grid and water.
The risk
Heat is a major cause of weather deaths, especially for older people, children and those without cooling. It also strains power and water.
☀ Before
- Identify cool spaces (shaded rooms, public cooling centres).
- Store extra water.
- Check on vulnerable neighbours/relatives.
⚡ During
- Stay hydrated; limit outdoor activity at peak heat.
- Use fans/ventilation; cool with water if no AC.
- Never leave people or pets in parked cars.
✓ After
- Restock water
- Check on vulnerable contacts
Equipment that helps
- Water storage
- Fans
- Light clothing
- Phone to check in
Mistakes to avoid
- Exercising at midday
- Leaving pets in cars
- Ignoring early symptoms
Sources & further reading
- National health and meteorological services
Named sources are indicative; verify current official guidance for your area.
