Summary:
Maximum temperature in APRIL 2026 is anticipated to be between 28.8°C to 32.1°C across the Country. The lowest maximum daytime temperature is predicted over Maryland, Grand Kru, Sinoe, Margibi and Grand Bassa counties while the highest maximum temperature is expected in the north, west and central regions of the country. However, the extreme maximum temperature is expected to occur in Bomi County.
Summary:
Minimum temperature across the country in April 2026 is anticipated to range between 22.2°C and 26.9°C. The highest minimum temperature is anticipated to occur along the coastal region including counties such as Maryland, Grand Kru, Sinoe, Rivercess, Grand Bassa, Margibi and Montserrado while the lowest minimum temperature is expected in Lofa and parts of Nimba, Bong and Gbapolu counties.
Summary:
In APRIL 2026, the forecasted cumulative rainfall amount across the counties is anticipated to be between 133.0mm and 231.3mm. Sinoe, River Gee, Grand Kru, Maryland and parts of Nimba, Rivercess, Grand Bassa, Nimba, Lofa and Gbapolu are expected to record the highest rainfall amount. The western region including Grand Cape Mount, Bomi, Montserrado, Margibi and parts of Grand Bassa and Gbarpolu are expected to receive less rainfall during this period. The rest of the country are expected to experience moderate rainfall during this period.
Summary:
The expected climatic conditions in the month of April 2026 suggest a high prospects of malaria incidents in the southeast region. Moderate malaria incidents are anticipated in the central region of the country. Nevertheless, low vigilance cases are expected to occur in parts of Nimba, Lofa, Gbapolu and Grand Cape Mount and Bomi counties
Summary:
Malaria Case: with respect to the predicted malaria case for various locations across the country for the month of APRIL 2026 is between 4.2 to 11.4 cases per one hundred persons. The highest malaria cases are expected in parts of Margibi, Grand Bassa, Sinoe and Grand Kru counties. Low malaria cases are expected to occur in Lofa and parts of Gbapolu, Bong and Nimba counties while high malaria cases are expected in the south or coastal counties.
HIGHLIGHTS OF THE CLIMATE AND HEALTH BULLETIN – APRIL 2026
Rainfall:
Forecasted cumulative rainfall across Liberia is expected to range between 133.0 mm and 231.3 mm. The southeastern counties including Sinoe, River Gee, Grand Kru, and Maryland along with parts of Nimba, Rivercess, Grand Bassa, Lofa, and Gbarpolu, are likely to receive the highest rainfall. The western region (Grand Cape Mount, Bomi, Montserrado, Margibi, and parts of Grand Bassa and Gbarpolu) is expected to receive relatively lower rainfall, while the rest of the country will experience moderate rainfall.
Relative Humidity:
Relative humidity is predicted to range between 77.2% and 86.2%, with the highest values in the southeast, particularly in Maryland and River Gee. The lowest humidity levels are expected in the western region, including Lofa, Gbarpolu, Grand Cape Mount, and Bomi.
Temperature:
Maximum temperature: Expected between 28.8°C and 32.1°C. Lower values are anticipated in Maryland, Grand Kru, Sinoe, Margibi, and Grand Bassa, while higher temperatures are expected in the north, west, and central regions, with extreme heat in Bomi County.
Minimum temperature: Forecasted to range from 22.2°C to 26.9°C. Higher nighttime temperatures are expected along the coastal counties, while lower values are likely in Lofa and parts of Nimba, Bong, and Gbarpolu.
Mean temperature: Expected between 26.2°C and 28.3°C, with relatively lower averages in Lofa and parts of Gbarpolu, River Gee, and Grand Gedeh.
Malaria Cases:
Predicted malaria incidence ranges from 4.2 to 11.4 cases per 100 persons. Higher cases are expected in Margibi, Grand Bassa, Sinoe, and Grand Kru, particularly in coastal and southeastern regions, while lower cases are anticipated in Lofa and parts of Gbarpolu, Bong, and Nimba.
Malaria Vigilance:
Climatic conditions indicate a high risk of malaria transmission in the southeast, moderate risk in central regions, and lower risk in parts of Nimba, Lofa, Gbarpolu, Grand Cape Mount, and Bomi.
Medication Instability Vigilance:
Forecasted temperature and humidity conditions may lead to medication instability across much of the country, requiring high vigilance nationwide. However, lower risk is expected in Maryland, Grand Kru, and parts of Sinoe, River Gee, Grand Bassa, and Margibi.
Medical advisory for April 2026
Based on the forecasted climatic conditions for April 2026, which may favor increased mosquito breeding and the spread of vector-borne diseases, medical personnel, individuals, and stakeholders in the health sector are advised to take the following precautionary measures:
Carry malaria medication when traveling to high-risk areas, particularly regions prone to increased rainfall and standing water.
Adhere to prescribed malaria prophylaxis (preventive medication), especially for vulnerable groups and individuals residing in or visiting high-risk zones.
Seek prompt medical attention at recognized health facilities when symptoms of malaria such as fever, chills, headache, or body weakness are observed.
Store all medications properly in a safe, cool, and dry place to prevent spoilage, contamination, or loss of effectiveness.
Promote the use of insecticide-treated mosquito nets (ITNs), especially during nighttime, to reduce exposure to mosquito bites.
Maintain clean surroundings by eliminating stagnant water and improving sanitation to limit mosquito breeding sites.
Strengthen community awareness and surveillance by encouraging early reporting of suspected malaria cases and supporting public health interventions.
