Category: Heat waves affecting Niger

Heat wave occuring from May 29 2025 to June 01 2025 at 17.5°N 10.0°E

Download data: JSON

Event type: Heat wave

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

  • Niger

Duration: 4 days

Time span: May 29 2025 to June 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 35.7 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 38.5 °C

Event center: 17.5°N 10.0°E

Area affected: 56221 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-29_to_2025-Jun-01_10.0_17.5

Heat wave occuring from December 30 2024 to January 04 2025 at 20.5°N 17.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Libya
  • Niger

Duration: 6 days

Time span: December 30 2024 to January 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 18.2 °C
  • Maximum temperature anomaly: 8.4 °C
  • Maximum temperature: 22.3 °C

Event center: 20.5°N 17.0°E

Area affected: 277394 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-Dec-30_to_2025-Jan-04_17.0_20.5

Heat wave occuring from August 04 2024 to August 13 2024 at 23.0°N 5.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Niger

Duration: 10 days

Time span: August 04 2024 to August 13 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 35.1 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 38.0 °C

Event center: 23.0°N 5.5°E

Area affected: 215257 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-Aug-04_to_2024-Aug-13_5.5_23.0

Heat wave occuring from April 12 2024 to April 16 2024 at 18.0°N 13.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 5 days

Time span: April 12 2024 to April 16 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 32.8 °C
  • Maximum temperature anomaly: 4.4 °C
  • Maximum temperature: 34.3 °C

Event center: 18.0°N 13.5°E

Area affected: 134463 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-Apr-12_to_2024-Apr-16_13.5_18.0

Heat wave occuring from June 28 2023 to July 03 2023 at 16.5°N 12.0°E

Download data: JSON

Event type: Heat wave

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

  • Niger

Duration: 6 days

Time span: June 28 2023 to July 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 34.4 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 35.3 °C

Event center: 16.5°N 12.0°E

Area affected: 56512 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-28_to_2023-Jul-03_12.0_16.5

Heat wave occuring from June 17 2023 to June 20 2023 at 19.0°N 7.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Niger

Duration: 4 days

Time span: June 17 2023 to June 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 37.9 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 39.7 °C

Event center: 19.0°N 7.0°E

Area affected: 96113 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-17_to_2023-Jun-20_7.0_19.0

Heat wave occuring from June 12 2023 to June 20 2023 at 17.5°N 15.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Libya
  • Niger
  • Sudan

Duration: 9 days

Time span: June 12 2023 to June 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 35.2 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 38.3 °C

Event center: 17.5°N 15.5°E

Area affected: 734902 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-12_to_2023-Jun-20_15.5_17.5

Heat wave occuring from May 31 2023 to June 03 2023 at 15.5°N 12.0°E

Download data: JSON

Event type: Heat wave

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

  • Niger

Duration: 4 days

Time span: May 31 2023 to June 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 35.2 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 36.4 °C

Event center: 15.5°N 12.0°E

Area affected: 50531 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-31_to_2023-Jun-03_12.0_15.5

Heat wave occuring from April 06 2023 to April 10 2023 at 13.5°N 14.0°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 5 days

Time span: April 06 2023 to April 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 34.0 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 38.0 °C

Event center: 13.5°N 14.0°E

Area affected: 210947 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-06_to_2023-Apr-10_14.0_13.5

Heat wave occuring from March 18 2023 to March 23 2023 at 16.5°N 19.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 6 days

Time span: March 18 2023 to March 23 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 30.6 °C
  • Maximum temperature anomaly: 5.6 °C
  • Maximum temperature: 32.2 °C

Event center: 16.5°N 19.0°E

Area affected: 159777 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-18_to_2023-Mar-23_19.0_16.5