Category: Extremes affecting Mauritania

Heat wave occuring from February 25 2026 to March 01 2026 at 28.0°N 353.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco

Duration: 5 days

Time span: February 25 2026 to March 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 22.6 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 25.6 °C

Event center: 28.0°N 353.0°E

Area affected: 207080 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_2026-Feb-25_to_2026-Mar-01_353.0_28.0

Heat wave occuring from February 16 2026 to February 28 2026 at 30.5°N 352.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco
  • Spain
  • Tunisia

Duration: 13 days

Time span: February 16 2026 to February 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 19.8 °C
  • Maximum temperature anomaly: 8.3 °C
  • Maximum temperature: 27.6 °C

Event center: 30.5°N 352.5°E

Area affected: 1962863 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_2026-Feb-16_to_2026-Feb-28_352.5_30.5

Cold spell occuring from December 10 2025 to January 01 2026 at 15.0°N 342.5°E

Download data: JSON

Event type: Cold spell

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

  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 23 days

Time span: December 10 2025 to January 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 21.5 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: 12.8 °C

Event center: 15.0°N 342.5°E

Area affected: 1618347 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-Dec-10_to_2026-Jan-01_342.5_15.0

Cold spell occuring from November 25 2025 to November 30 2025 at 11.5°N 345.0°E

Download data: JSON

Event type: Cold spell

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

  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 6 days

Time span: November 25 2025 to November 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 25.4 °C
  • Minimum temperature anomaly: -4.2 °C
  • Minimum temperature: 23.7 °C

Event center: 11.5°N 345.0°E

Area affected: 105065 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-Nov-25_to_2025-Nov-30_345.0_11.5

Heat wave occuring from November 23 2025 to November 25 2025 at 26.0°N 348.0°E

Download data: JSON

Event type: Heat wave

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

  • Mauritania
  • Morocco

Duration: 3 days

Time span: November 23 2025 to November 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 22.2 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 24.8 °C

Event center: 26.0°N 348.0°E

Area affected: 153143 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-Nov-23_to_2025-Nov-25_348.0_26.0

Cold spell occuring from September 30 2025 to October 03 2025 at 19.5°N 345.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritania

Duration: 4 days

Time span: September 30 2025 to October 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 28.3 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: 25.1 °C

Event center: 19.5°N 345.5°E

Area affected: 134399 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-Sep-30_to_2025-Oct-03_345.5_19.5

Heat wave occuring from September 26 2025 to September 29 2025 at 17.0°N 343.5°E

Download data: JSON

Event type: Heat wave

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

  • Mauritania

Duration: 4 days

Time span: September 26 2025 to September 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 28.8 °C
  • Maximum temperature anomaly: 4.7 °C
  • Maximum temperature: 34.2 °C

Event center: 17.0°N 343.5°E

Area affected: 226860 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-Sep-26_to_2025-Sep-29_343.5_17.0

Heat wave occuring from September 22 2025 to October 08 2025 at 21.0°N 2.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Niger

Duration: 17 days

Time span: September 22 2025 to October 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 33.3 °C
  • Maximum temperature anomaly: 4.9 °C
  • Maximum temperature: 37.5 °C

Event center: 21.0°N 2.5°E

Area affected: 1172231 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-Sep-22_to_2025-Oct-08_2.5_21.0

Heat wave occuring from August 22 2025 to September 09 2025 at 27.0°N 7.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Chad
  • Egypt
  • Libya
  • Mali
  • Mauritania
  • Morocco
  • Sudan
  • Tunisia

Duration: 19 days

Time span: August 22 2025 to September 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 34.3 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 40.9 °C

Event center: 27.0°N 7.5°E

Area affected: 3624846 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-Aug-22_to_2025-Sep-09_7.5_27.0

Cold spell occuring from August 20 2025 to August 22 2025 at 17.0°N 349.0°E

Download data: JSON

Event type: Cold spell

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

  • Mali
  • Mauritania

Duration: 3 days

Time span: August 20 2025 to August 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 27.1 °C
  • Minimum temperature anomaly: -4.1 °C
  • Minimum temperature: 25.6 °C

Event center: 17.0°N 349.0°E

Area affected: 62350 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-Aug-20_to_2025-Aug-22_349.0_17.0