NiMet Warns of Increased Rainfall, Flooding in July

The Nigerian Meteorological Agency has warned Nigerians to prepare for increased rainfall and a higher risk of flooding this month as the rainy season reaches its peak across the country.

In its July 2026 Monthly Weather Outlook released on Monday, the agency said July is expected to be one of the wettest months of the year, with more frequent and intense rainfall, widespread thunderstorms and rising river levels likely to trigger both riverine and flash floods, particularly in flood-prone and low-lying communities.

NiMet forecast monthly rainfall ranging between 80 millimetres and 480 millimetres across different parts of the country, accompanied by frequent thunderstorms, lightning and occasional strong winds.

According to the agency, the heaviest rainfall is expected in the South-South and South-East states, as well as parts of Taraba, Nasarawa, Plateau, Bauchi, Kaduna and the Federal Capital Territory.

The weather outlook also projected cooler daytime temperatures across much of Nigeria as increased cloud cover and persistent rainfall reduce heat conditions in many areas.

However, it said parts of Jigawa, Yobe and Borno states may continue to experience relatively hot afternoons despite the widespread rains.

The agency warned that the expected increase in rainfall would raise river levels and heighten the risk of flooding in vulnerable communities.

“July is expected to be one of the wettest months of the year across Nigeria. Rainfall will increase in both frequency and intensity as the rainy season becomes fully established nationwide,” NiMet said.

It added that widespread thunderstorms across the country would further increase the likelihood of riverine and flash flooding.

Beyond flooding, the agency warned of possible public health concerns associated with the weather conditions.

It explained that persistent rainfall and high humidity could encourage mosquito breeding, particularly across the southern states and parts of Kogi, Kwara and Benue, increasing the risk of mosquito-borne diseases.

NiMet also cautioned that heavy rainfall could increase the likelihood of cholera outbreaks, especially in northern states as well as Lagos and Ogun, urging residents to drink safe water, maintain proper hygiene and seek medical attention promptly if symptoms develop.

As part of its safety advisory, the agency urged residents to clear drainage channels to minimise flooding, avoid driving or walking through flooded roads and remain indoors during thunderstorms.

It also advised members of the public not to take shelter under trees during storms and to secure loose outdoor objects that could be blown away by strong winds.

Residents of flood-prone communities were specifically urged to monitor official weather forecasts and flood advisories throughout the month.

NiMet said the monthly outlook is part of its efforts to support early warning systems and strengthen climate resilience by providing timely weather information to help individuals, communities and emergency agencies prepare for adverse weather conditions.