Category: Extremes affecting Liberia

Heat wave occuring from June 01 2025 to June 04 2025 at 6.5°N 349.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Guinea
  • Liberia
  • Sierra Leone

Duration: 4 days

Time span: June 01 2025 to June 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 26.3 °C
  • Maximum temperature anomaly: 2.1 °C
  • Maximum temperature: 27.0 °C

Event center: 6.5°N 349.5°E

Area affected: 52130 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Jun-01_to_2025-Jun-04_349.5_6.5

Heat wave occuring from May 25 2025 to May 29 2025 at 10.0°N 350.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 5 days

Time span: May 25 2025 to May 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 3.4 °C
  • Maximum temperature: 32.0 °C

Event center: 10.0°N 350.5°E

Area affected: 183745 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-May-25_to_2025-May-29_350.5_10.0

Heat wave occuring from May 06 2025 to May 16 2025 at 8.0°N 351.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Ghana
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 11 days

Time span: May 06 2025 to May 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 27.7 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 29.1 °C

Event center: 8.0°N 351.0°E

Area affected: 383810 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-May-06_to_2025-May-16_351.0_8.0

Heat wave occuring from April 16 2025 to April 23 2025 at 7.0°N 349.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Liberia
  • Sierra Leone

Duration: 8 days

Time span: April 16 2025 to April 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 27.5 °C
  • Maximum temperature anomaly: 2.1 °C
  • Maximum temperature: 28.6 °C

Event center: 7.0°N 349.5°E

Area affected: 70611 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Apr-16_to_2025-Apr-23_349.5_7.0

Heat wave occuring from March 28 2025 to April 15 2025 at 7.5°N 348.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Ghana
  • Guinea
  • Liberia
  • Mali
  • Sierra Leone

Duration: 19 days

Time span: March 28 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 29.0 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 34.4 °C

Event center: 7.5°N 348.0°E

Area affected: 511511 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-28_to_2025-Apr-15_348.0_7.5

Heat wave occuring from February 23 2025 to March 01 2025 at 4.0°N 353.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Liberia

Duration: 7 days

Time span: February 23 2025 to March 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 29.1 °C

Event center: 4.0°N 353.5°E

Area affected: 484428 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Feb-23_to_2025-Mar-01_353.5_4.0

Heat wave occuring from April 09 2023 to April 29 2023 at 8.0°N 351.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Burkina Faso
  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Mali
  • Sierra Leone

Duration: 21 days

Time span: April 09 2023 to April 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 29.4 °C
  • Maximum temperature anomaly: 3.9 °C
  • Maximum temperature: 34.7 °C

Event center: 8.0°N 351.5°E

Area affected: 434185 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Apr-09_to_2023-Apr-29_351.5_8.0

Heat wave occuring from April 04 2023 to April 06 2023 at 7.5°N 349.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Guinea
  • Liberia
  • Sierra Leone

Duration: 3 days

Time span: April 04 2023 to April 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 27.6 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 29.3 °C

Event center: 7.5°N 349.0°E

Area affected: 64326 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Apr-04_to_2023-Apr-06_349.0_7.5

Heat wave occuring from March 24 2023 to March 28 2023 at 7.5°N 349.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 5 days

Time span: March 24 2023 to March 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 28.0 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 30.0 °C

Event center: 7.5°N 349.0°E

Area affected: 58230 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Mar-24_to_2023-Mar-28_349.0_7.5

Heat wave occuring from March 07 2023 to March 13 2023 at 7.0°N 349.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Liberia
  • Sierra Leone

Duration: 7 days

Time span: March 07 2023 to March 13 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 29.2 °C

Event center: 7.0°N 349.5°E

Area affected: 82932 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2023-Mar-07_to_2023-Mar-13_349.5_7.0