Safe water in Nigeria: notices, floods, drought and what to store

Short answer. Phaenyx found no national register of boil-water notices in Nigeria. The Nigeria Centre for Disease Control (NCDC) advises boiling drinking water and storing it in a clean container, especially in the rainy season, when cholera cases rise between April and September ¹. Sachet and bottled water must be registered with NAFDAC ². Nigeria publishes no official quantity of water to store.

How do I know if my water is unsafe?

There is no national list of boil-water or do-not-drink notices. Phaenyx found two official voices instead:

• NCDC public health advisories. Its cholera advice: "Ensure that water is boiled and stored in a clean and safe container before drinking. Ensure that the seals of bottled water are in place" ¹. NCDC notes that cholera cases usually rise in the rainy season, mainly between April and September, when run-off washes contaminated faeces into water sources ¹.
• NAFDAC for packaged water. No packaged water may be manufactured, advertised, sold or distributed in Nigeria unless it is registered with NAFDAC ². The label must show the batch number, manufacturing and best-before dates, the NAFDAC registration number and the factory address ². NAFDAC publishes product recalls and safety alerts, and takes complaints on 0800-1-NAFDAC (0800-1-623322) ³.

Our guides on a boil-water notice and water purification explain what to do.

How much water should I store?

Nigeria publishes no official quantity of water per person or number of days. Our guide on water per person gives the figures used by other governments; water storage containers explains how to store it.

Is my water safe after a flood?

Treat it as unsafe. NIHSA's flood advice is to avoid flood water, which may be contaminated, and to return home only when the authorities say it is safe ⁴. See water after a flood.

Is Nigeria short of water?

Not in the median city, but drought risk is high. In WRI's Aqueduct 4.0 model, the population-weighted median of Nigerian cities is "low" for current water stress, "low to medium" in the 2050 business-as-usual projection, and "medium-high" on the separate drought-risk scale (Low, Low-Medium, Medium, Medium-High, High) ⁶. These are city medians: a given town or catchment can sit higher or lower. NiMet's 2026 forecast warned of a severe dry spell of up to 21 days in the northern and central states in June-August ⁷, and NIHSA monitors low river flows and water availability for dry spells and drought ⁴. See drought preparedness.

What about boreholes and wells?

Phaenyx found no official national advice for households on testing a private well or borehole. In the Federal Capital Territory, the FCT Water Board controls the drilling and operation of boreholes and offers water analysis ⁵. For packaged-water factories, NAFDAC does not allow hand-dug wells and requires the source to be at least 30 m from the nearest septic tank ²; these rules are for factories, not homes. Our guide on private wells in an emergency gives general steps.

Frequently asked questions

Is sachet water safe in Nigeria?

Only registered products may be sold; check that the label carries a NAFDAC registration number and dates, and that the seal is intact ¹².

When is cholera most common?

In the rainy season, mainly April to September, according to NCDC ¹.

Who do I call in a flood?

NEMA on 112 or your State Emergency Management Agency, according to NIHSA ⁴.

Preparedness index: Nigeria ranks 65th of 67, 19/100 · full ranking