Heat wave occuring from April 04 2025 to April 09 2025 at 6.0°N 10.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Cameroon
  • Central African Republic
  • Congo
  • Ghana
  • Nigeria
  • Togo

Duration: 6 days

Time span: April 04 2025 to April 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 29.2 °C
  • Maximum temperature anomaly: 3.4 °C
  • Maximum temperature: 35.7 °C

Event center: 6.0°N 10.0°E

Area affected: 647801 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-04_to_2025-Apr-09_10.0_6.0

Cold spell occuring from December 18 2024 to December 22 2024 at 11.0°N 3.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Burkina Faso
  • Côte d’Ivoire
  • Ghana
  • Mali
  • Niger
  • Nigeria
  • Togo

Duration: 5 days

Time span: December 18 2024 to December 22 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 21.4 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 17.3 °C

Event center: 11.0°N 3.0°E

Area affected: 1169535 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: Cold_spell_2024-Dec-18_to_2024-Dec-22_3.0_11.0

Cold spell occuring from November 14 2024 to December 08 2024 at 11.0°N 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Benin
  • Burkina Faso
  • Cameroon
  • Central African Republic
  • Chad
  • Côte d’Ivoire
  • Egypt
  • Ghana
  • Libya
  • Mali
  • Niger
  • Nigeria
  • Sudan
  • Togo

Duration: 25 days

Time span: November 14 2024 to December 08 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 19.6 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 8.3 °C

Event center: 11.0°N 16.0°E

Area affected: 4509535 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: Cold_spell_2024-Nov-14_to_2024-Dec-08_16.0_11.0

Cold spell occuring from October 24 2024 to November 12 2024 at 13.0°N 10.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Burkina Faso
  • Cameroon
  • Chad
  • Ghana
  • Mali
  • Niger
  • Nigeria

Duration: 20 days

Time span: October 24 2024 to November 12 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 26.0 °C
  • Minimum temperature anomaly: -4.2 °C
  • Minimum temperature: 20.5 °C

Event center: 13.0°N 10.0°E

Area affected: 914863 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: Cold_spell_2024-Oct-24_to_2024-Nov-12_10.0_13.0

Cold spell occuring from October 04 2024 to October 16 2024 at 15.0°N 8.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Burkina Faso
  • Guinea
  • Mali
  • Niger
  • Nigeria

Duration: 13 days

Time span: October 04 2024 to October 16 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 25.8 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 21.9 °C

Event center: 14.0°N 355.5°E

Area affected: 694471 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: Cold_spell_2024-Oct-04_to_2024-Oct-16_8.0_15.0

Heat wave occuring from July 13 2024 to July 20 2024 at 7.5°N 359.5°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Ghana
  • Togo

Duration: 8 days

Time span: July 13 2024 to July 20 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 27.5 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 28.5 °C

Event center: 7.5°N 359.5°E

Area affected: 97894 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_2024-Jul-13_to_2024-Jul-20_359.5_7.5

Heat wave occuring from June 16 2023 to June 19 2023 at 9.0°N 4.5°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Nigeria
  • Togo

Duration: 4 days

Time span: June 16 2023 to June 19 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 28.9 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 32.4 °C

Event center: 9.0°N 4.5°E

Area affected: 103531 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-Jun-16_to_2023-Jun-19_4.5_9.0

Heat wave occuring from May 30 2023 to June 06 2023 at 8.0°N 7.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Cameroon
  • Nigeria
  • Togo

Duration: 8 days

Time span: May 30 2023 to June 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 28.5 °C
  • Maximum temperature anomaly: 3.2 °C
  • Maximum temperature: 31.3 °C

Event center: 8.0°N 7.0°E

Area affected: 241980 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-May-30_to_2023-Jun-06_7.0_8.0

Cold spell occuring from March 14 2023 to March 25 2023 at 11.0°N 5.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Ghana
  • Nigeria
  • Togo

Duration: 12 days

Time span: March 14 2023 to March 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 28.8 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: 25.3 °C

Event center: 11.0°N 5.0°E

Area affected: 149137 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: Cold_spell_2023-Mar-14_to_2023-Mar-25_5.0_11.0

Cold spell occuring from February 12 2023 to February 22 2023 at 8.0°N 8.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Burkina Faso
  • Cameroon
  • Central African Republic
  • Chad
  • Egypt
  • Ghana
  • Libya
  • Niger
  • Nigeria
  • South Sudan
  • Sudan
  • Togo

Duration: 11 days

Time span: February 12 2023 to February 22 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 17.9 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 4.0 °C

Event center: 8.0°N 8.0°E

Area affected: 3176562 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: Cold_spell_2023-Feb-12_to_2023-Feb-22_8.0_8.0