Agrometeorological Dekadal Bulletin-3rd DEKAD MAY 2026
Summary:
The third Dekad of May 2026 was characterized by an increase in rainfall amounts across the country. Nationwide, rainfall totals ranged from 92.2mm to 215.6mm, with Maryland, Grand Kru, southeast of Sinoe, Rivercess, Grand Cape Mount, Bomi and the south of Montserrado County experiencing the highest rainfall amount. The north, central and northern region experienced moderate rainfall during this period.
Summary:
The third dekad of May 2026 was marked by variation in maximum temperature across the country. Northwest and southeast regions of the country experienced relatively low maximum temperature. However, the central and southwest regions experienced the highest maximum temperature. During this period, maximum temperature ranged between 27.9°C and 29.2°C.
Summary:
The third Dekad of May 2026 was characterized by variation in minimum temperature. Some parts of the coastal counties (south of Montserrado, Margibi, Bassa, Rivercess, Sinoe, Grand Kru and Maryland) experienced high minimum temperature, while Lofa, north, central of Nimba and extreme north of Bong County experienced the lowest. Minimum temperature during this period ranged from 23.3°C to 26.0°C.
Summary:
During the third Dekad of May 2026, the west and nothern region experienced intense sunshine with high evapotranspiration rates. However, west of Montserrado, south of Margibi and Grand Kru, north of Sinoe, west of Grand Bassa county experienced lowest evapotranspiration rate while the north, central of Nimba and Lofa, and northeast of Bong county experienced highest evapotranspiration rate.
Summary:
NDVI: During the third Dekad of May 2026, vegetation is gradually becoming more dense. The northern, southeast and Rivercess becoming more dense. The western region experienced less dense vegetation during this period. The high vegetation increased is due to the high rainfall experienced
Highlight of the Agrometeorological Dekadal Bulletin for the third DEKAD of May 2026
Rainfall: The third Dekad of May 2026 was characterized by an increase in rainfall amounts across the country. Nationwide, rainfall totals ranged from 92.2mm to 215.6mm, with Maryland, Grand Kru, southeast of Sinoe, Rivercess, Grand Cape Mount, Bomi and the south of Montserrado County experiencing the highest rainfall amount. The north, central and northern region experienced moderate rainfall during this period.
Maximum Temperature: The third dekad of May 2026 was marked by variation in maximum temperature across the country. Northwest and southeast regions of the country experienced relatively low maximum temperature. However, the central and southwest regions experienced the highest maximum temperature. During this period, maximum temperature ranged between 27.9°C and 29.2°C.
Minimum Temperature: The third Dekad of May 2026 was characterized by variation in minimum temperature. Some parts of the coastal counties (south of Montserrado, Margibi, Bassa, Rivercess, Sinoe, Grand Kru and Maryland) experienced high minimum temperature, while Lofa, north, central of Nimba and extreme north of Bong County experienced the lowest. Minimum temperature during this period ranged from 23.3°C to 26.0°C.
PET: During the third Dekad of May 2026, the west and nothern region experienced intense sunshine with high evapotranspiration rates. However, west of Montserrado, south of Margibi and Grand Kru, north of Sinoe, west of Grand Bassa county experienced lowest evapotranspiration rate while the north, central of Nimba and Lofa, and northeast of Bong County experienced highest evapotranspiration rate.
NDVI: During the third dekad of May 2026, vegetation cover across Liberia continued to increase and become denser. The northern region, southeastern counties, and Rivercess County recorded notable increases in vegetation density, while the western region experienced comparatively less dense vegetation during the period. The observed increase in vegetation is primarily attributed to the significant rainfall received across much of the country.
Weather outlook for the month of June
Rainfall: The forecasted cumulative rainfall across the counties is expected to increase, with total rainfall amounts ranging between 218.7 mm and 754.2 mm. The coastal and southern regions are forecast to receive the highest rainfall totals, while the northern parts of the country are expected to record the lowest amounts.
Additionally, rainfall is expected to increase significantly in the southwestern region of the country, particularly affecting Grand Cape Mount, Bomi, and Montserrado Counties.
Relative Humidity: During June 2026, high relative humidity is expected to across the northern parts of the country. However, low relatively humidity is anticipated in Montserrado, Margibi, Grand Kru, and the western part of Grand Bassa County. Average relative humidity during the month is forecast to range between 88.2% and 90.2%.
Maximum temperature: Expected between 27.5°C and 29.7°C. Higher maximum temperatures are expected in Grand Cape Mount, Bomi, western Montserrado, and southern Gbapolu Counties, while Margibi, Grand Bassa, Sinoe, Grand Kru, Lofa, and Maryland Counties are anticipated to experience lower maximum temperatures. The remaining areas, including Bong, Nimba, northern Grand Gedeh, and parts of Gbapolu Counties, are expected to record moderate maximum temperatures.
Minimum temperature: Minimum temperature across the country in June 2026 is anticipated to range between 21.2°C and 25.0°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, Gbapolu and Grand Gedeh counties
Mean temperature: Expected between 24.6°C and 26.8°C, with relatively lower averages in Lofa County and parts of Gbapolu and Nimba counties while the coastal counties are expected to experience the highest.
Farmers Advisory:
As rainfall gradually increases, vegetation is becoming denser, rainfall is expected to intensify during the coming dekads in June 2026, and soil moisture content expected to improve. Farmers are strongly encouraged to take the following precautions in their agricultural practices:
Field Preparation:
Farmers are advice to continue vegetable and rice production in the upland areas; this will help reduce the risk of damage and maximize yields across the country. Properly layout field and create channel to prevent erosion in the field
¨ Create drainage channels in lowland areas, where possible, to prevent waterlogging during periods of heavy rainfall.
Farmers are advised to properly lay out their fields for rice production during the growing season.
Farmers are also encouraged to commence the planting of rice and other crops in upland areas.
Prepare fields and transplant cocoa seedlings where necessary to ensure better establishment during the rainy season.
Prepare nurseries and plant cocoa seeds to support better establishment during the season.
Crop Management:
Plant drought- or water-tolerant crop varieties to reduce the risk of crop losses.
Monitor crops regularly for signs of disease or stress caused by high evaporation and evapotranspiration.
Clear unwanted grass and weeds from cocoa farms and other agricultural fields to improve airflow and oxygen circulation. This will help improve crop yield.
Livestock Management:
Move animals to upland areas to reduce the risk of exposure to heavy rainfall and flooding.
Ensure animals are properly housed and maintain good hygiene practices to prevent disease outbreaks.
Provide clean drinking water regularly to prevent dehydration and heat stress.
Monitor livestock frequently for signs of illness and provide timely treatment when necessary.