Category: Extremes affecting Chad

Cold spell occuring from July 11 2025 to July 14 2025 at 15.5°N 11.0°E

Download data: JSON

Event type: Cold spell

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

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

Duration: 4 days

Time span: July 11 2025 to July 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 27.9 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 24.1 °C

Event center: 15.5°N 11.0°E

Area affected: 636202 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_2025-Jul-11_to_2025-Jul-14_11.0_15.5

Heat wave occuring from July 06 2025 to July 13 2025 at 25.0°N 11.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Chad
  • Libya
  • Mali
  • Niger

Duration: 8 days

Time span: July 06 2025 to July 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 36.0 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 41.0 °C

Event center: 25.0°N 11.0°E

Area affected: 1154249 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-Jul-06_to_2025-Jul-13_11.0_25.0

Heat wave occuring from July 04 2025 to July 10 2025 at 19.5°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: 7 days

Time span: July 04 2025 to July 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 34.9 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 36.9 °C

Event center: 19.5°N 19.0°E

Area affected: 131783 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-Jul-04_to_2025-Jul-10_19.0_19.5

Cold spell occuring from May 26 2025 to June 08 2025 at 18.5°N 31.5°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Egypt
  • Libya
  • Sudan

Duration: 14 days

Time span: May 26 2025 to June 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 27.4 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: 19.7 °C

Event center: 18.5°N 31.5°E

Area affected: 2186428 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_2025-May-26_to_2025-Jun-08_31.5_18.5

Cold spell occuring from April 30 2025 to May 09 2025 at 13.5°N 28.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Chad
  • Egypt
  • Eritrea
  • Libya
  • Niger
  • Sudan

Duration: 10 days

Time span: April 30 2025 to May 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 24.6 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: 16.0 °C

Event center: 13.5°N 28.0°E

Area affected: 4297318 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_2025-Apr-30_to_2025-May-09_28.0_13.5

Heat wave occuring from April 22 2025 to April 26 2025 at 12.5°N 20.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad

Duration: 5 days

Time span: April 22 2025 to April 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 35.8 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 37.0 °C

Event center: 12.5°N 20.0°E

Area affected: 60132 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-22_to_2025-Apr-26_20.0_12.5

Heat wave occuring from April 21 2025 to April 26 2025 at 11.0°N 19.5°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Chad
  • Sudan

Duration: 6 days

Time span: April 21 2025 to April 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 34.7 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 36.5 °C

Event center: 11.0°N 19.5°E

Area affected: 200448 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-21_to_2025-Apr-26_19.5_11.0

Heat wave occuring from April 08 2025 to April 11 2025 at 12.0°N 19.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad

Duration: 4 days

Time span: April 08 2025 to April 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 35.7 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 36.6 °C

Event center: 12.0°N 19.5°E

Area affected: 81502 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-08_to_2025-Apr-11_19.5_12.0

Cold spell occuring from March 22 2025 to March 25 2025 at 11.5°N 26.5°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Libya
  • South Sudan
  • Sudan

Duration: 4 days

Time span: March 22 2025 to March 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 22.5 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 15.2 °C

Event center: 11.5°N 26.5°E

Area affected: 852348 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_2025-Mar-22_to_2025-Mar-25_26.5_11.5

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