Agrometeorological Dekadal Bulletin-2nd DEKAD AUGUST 2026
Summary:
The second dekad of August 2026 Grand Cape Mount, Bomi, Montserrado, Margibi, southwest of Grand Bassa, south of Gbapolu extreme west of Bong and extreme north of Lofa observed an increase in rainfall. Nevertheless, Grand Kru, Maryland and east of Sinoe County experienced less or no rainfall while other parts of the country observed moderate rainfall during this period. Nationwide, accumulated rainfall ranged from 00.0mm to 217.6mm.
Summary:
SMI: During the second dekad of Augustb2026, soil moisture conditions were above normal in most parts of the country. However, Sinoe, Grand Kru, Maryland and parts of Rivergee experienced normal to below normal soil moisture condition.
Summary:
PET: During the second Dekad of August 2026, the north of the country experienced intense sunshine with high evapotranspiration rates however, parts of Nimba county observed the highest. Nevertheless, the southern (coastal) region experienced lowest evapotranspiration rate while the central region experienced moderate evapotranspiration rate
Summary:
Maximum Temperature: The second dekad of August 2026 was marked by variation in maximum temperature across the country. Nimba and parts of Bong and Grand Gedeh counties experienced highest maximum temperature while parts of Margibi, Grand Bassa, Rivercess, Sinoe Grand Kru and Maryland counties record relatively low maximum temperature. The other parts of the country experienced moderate maximum temperature. During this period, maximum temperature was observed between 26.5°C and 27.8°C.
Summary:
Minimum Temperature: The second dekad of August 2026 was characterized by variation in minimum temperature. The southern and parts of Gbapolu and Bong counties experienced relatively high minimum temperature, while the northern and parts of the central region experienced the lowest. Minimum temperature during this period ranged from 21.6°C to 25.5°C
Summary:
RAINFALL: In August 2026, cumulative rainfall is expected to decrease as compare to previous month, with total monthly rainfall expected to range from 56.1 mm to 542.2 mm. The southwestern and northwestern regions are forecasted to receive the highest rainfall totals, with Grand Cape Mount, Bomi, Montserrado, and Margibi Counties expected to experience the highest amounts of rainfall during the month. Nevertheless, Maryland, Grand Kru, River Gee, and the eastern Grand Gedeh Counties are expected to record the lowest rainfall totals during the same period
Summary:
Maximum Temperature: Maximum temperature in August 2026 is anticipated to range between 26.7°C to 29.0°C across the Country. Grand Gedeh, Nimba, east of Bong, lower Gbarpolu, northwest of Bomi and east and central of Grand Cape Mount counties are anticipated to experience high maximum temperature. Margibi, Grand Bassa, Sinoe, Grand Kru counties are anticipated to experience low maximum temperature. However, moderate maximum temperature is expected in the other parts of the country.
Summary:
Minimum (Nighttime) Temperature : Minimum temperature across the country in August 2026 is anticipated to range between 20.7°C and 25.3°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 Lofa and Nimba counties. The other parts of the country are anticipated to experience moderate minimum temperature.
HIGHLIGHTS OF THE AGROMETEOROLOGICAL BULLETIN FOR THE SECOND DEKAD OF AUGUST 2026
Rainfall
During the second dekad of August 2026, increased rainfall was observed across Grand Cape Mount, Bomi, Montserrado, Margibi, southwestern Grand Bassa, southern Gbarpolu, western Bong, and northern Lofa. In contrast, Grand Kru, Maryland, and eastern Sinoe experienced little or no rainfall, while moderate rainfall was recorded across most other parts of the country.
Nationwide, accumulated rainfall ranged from 0.0 mm to 217.6 mm.
Soil Moisture Index (SMI)
During the second dekad of August 2026, soil moisture conditions were above normal across most parts of the country. However, Sinoe, Grand Kru, Maryland, and parts of River Gee experienced normal to below-normal soil moisture conditions.
Potential Evapotranspiration (PET)
During the second dekad of August 2026, the northern parts of the country experienced relatively intense sunshine and higher evapotranspiration rates, with parts of Nimba County recording the highest PET values. The southern coastal region recorded the lowest evapotranspiration rates, while moderate values were observed across the central region.
Maximum Temperature
The second dekad of August 2026 was characterized by variations in maximum temperature across the country. Nimba, parts of Bong, and Grand Gedeh recorded the highest maximum temperatures, while relatively lower maximum temperatures were observed across parts of Margibi, Grand Bassa, Rivercess, Sinoe, Grand Kru, and Maryland.
Maximum temperatures during the period ranged from 26.5°C to 27.8°C.
Minimum Temperature
Minimum temperatures also varied across the country during the second dekad of August 2026. The southern region and parts of Gbarpolu and Bong experienced relatively higher minimum temperatures, while the northern and parts of the central regions recorded lower values.
Minimum temperatures ranged from 21.6°C to 25.5°C.
AUGUST 2026 WEATHER OUTLOOK
Rainfall
Cumulative rainfall during August 2026 is expected to decrease compared with the previous month, with monthly rainfall totals forecast to range from 56.1 mm to 542.2 mm.
The southwestern and northwestern regions are expected to receive the highest rainfall totals, particularly Grand Cape Mount, Bomi, Montserrado, and Margibi Counties. Meanwhile, Maryland, Grand Kru, River Gee, and eastern Grand Gedeh are expected to record the lowest rainfall totals.
Maximum Temperature
Maximum temperatures in August 2026 are expected to range from 26.7°C to 29.0°C across the country.
Higher maximum temperatures are anticipated in Grand Gedeh, Nimba, eastern Bong, lower Gbarpolu, northwestern Bomi, and eastern and central Grand Cape Mount. Relatively lower maximum temperatures are expected in Margibi, Grand Bassa, Sinoe, and Grand Kru, while moderate temperatures are anticipated across the remaining parts of the country.
Minimum (Nighttime) Temperature
Minimum temperatures are expected to range from 20.7°C to 25.3°C across the country.
The highest nighttime temperatures are expected along the coastal region, including Maryland, Grand Kru, Sinoe, Rivercess, Grand Bassa, Margibi, and Montserrado. The lowest minimum temperatures are expected in Lofa and parts of Nimba, while moderate nighttime temperatures are anticipated across the rest of the country.
FARMERS' ADVISORY
Increased rainfall across western and central Liberia has resulted in progressively saturated soils, while reduced rainfall in the southeast has contributed to declining soil moisture conditions. With rainfall expected to remain higher in the western parts of the country and lower in the southeast, farmers, agricultural stakeholders, and agro-industries are advised to take appropriate precautions to minimize potential impacts on agricultural activities.
1. Farmers in High-Rainfall Areas
Farmers in western Liberia are strongly advised to take additional precautions due to the possibility of continued heavy rainfall. Persistent rainfall may cause rising river levels, localized flooding of farmlands, waterlogging, soil erosion, and damage to access roads.
Farmers are encouraged to:
- Closely monitor weather forecasts and local advisories.
- Secure farm inputs, harvested crops, and other agricultural materials.
- Improve drainage around farms where necessary.
- Avoid crossing flooded roads, bridges, and waterways.
- Take appropriate measures to protect crops from waterlogging and flooding.
2. Pest and Disease Management
Farmers are encouraged to regularly monitor their crops, as persistent rainfall in the west and reduced rainfall in the southeast may create conditions favorable for pest and disease outbreaks.
Where pest or disease outbreaks occur, farmers should promptly adopt recommended integrated pest-management practices and use approved pesticides only when necessary. Farmers are encouraged to consult agricultural extension officers before applying pesticides to ensure their safe and appropriate use.
3. Livestock Management
Livestock producers are encouraged to keep animals in clean, dry, and well-protected shelters. Increased rainfall and prolonged wet conditions can contribute to the spread of infectious diseases and increase the risk of respiratory illnesses and other health complications.
In areas experiencing extended dry conditions, livestock may also be exposed to heat stress, water shortages, reduced feed availability, and increased disease risks.
Livestock producers should therefore:
- Provide adequate shelter, clean water, and sufficient feed.
- Monitor animals regularly for signs of illness, heat stress, dehydration, or abnormal behavior.
- Maintain good hygiene and sanitation around livestock facilities.
- Seek prompt veterinary assistance when signs of disease or distress are observed.
4. Vegetable Production
Vegetable producers are advised to continue farming activities on upland areas where possible. Farmers should properly design and lay out their fields and establish adequate drainage systems to reduce waterlogging, soil erosion, and nutrient loss during periods of heavy rainfall.
The use of appropriate soil and water conservation practices is strongly encouraged to protect agricultural land and sustain crop productivity.