Category: Extremes affecting Ethiopia

Heat wave occuring from August 20 2025 to October 12 2025 at 22.5°N 41.5°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Chad
  • Djibouti
  • Egypt
  • Eritrea
  • Ethiopia
  • Kenya
  • Oman
  • Saudi Arabia
  • Somalia
  • South Sudan
  • Sudan
  • United Arab Emirates
  • Yemen

Duration: 54 days

Time span: August 20 2025 to October 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 31.4 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 39.2 °C

Event center: 22.5°N 41.5°E

Area affected: 4543278 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-20_to_2025-Oct-12_41.5_22.5

Heat wave occuring from August 18 2025 to September 29 2025 at 0.5°N 37.0°E

Download data: JSON

Event type: Heat wave

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

  • Djibouti
  • Eritrea
  • Ethiopia
  • Kenya
  • Oman
  • Saudi Arabia
  • Somalia
  • United Arab Emirates
  • Yemen

Duration: 43 days

Time span: August 18 2025 to September 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 31.8 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 40.2 °C

Event center: 0.5°N 37.0°E

Area affected: 1989168 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-18_to_2025-Sep-29_37.0_0.5

Cold spell occuring from August 16 2025 to September 07 2025 at 14.5°N 40.0°E

Download data: JSON

Event type: Cold spell

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

  • Central African Republic
  • Chad
  • Djibouti
  • Eritrea
  • Ethiopia
  • Kenya
  • Niger
  • Oman
  • Saudi Arabia
  • South Sudan
  • Sudan
  • Uganda
  • Yemen

Duration: 23 days

Time span: August 16 2025 to September 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 26.5 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: 11.0 °C

Event center: 14.5°N 40.0°E

Area affected: 4160278 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-16_to_2025-Sep-07_40.0_14.5

Heat wave occuring from August 13 2025 to August 15 2025 at 5.0°N 45.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Somalia

Duration: 3 days

Time span: August 13 2025 to August 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 1.5 °C
  • Maximum temperature: 30.1 °C

Event center: 5.0°N 45.0°E

Area affected: 95351 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-13_to_2025-Aug-15_45.0_5.0

Heat wave occuring from August 06 2025 to August 17 2025 at 6.0°N 39.5°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya

Duration: 12 days

Time span: August 06 2025 to August 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 22.1 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 30.5 °C

Event center: 6.0°N 39.5°E

Area affected: 58443 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-06_to_2025-Aug-17_39.5_6.0

Cold spell occuring from May 29 2025 to June 13 2025 at 12.0°N 44.5°E

Download data: JSON

Event type: Cold spell

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

  • Eritrea
  • Ethiopia
  • Saudi Arabia
  • Yemen

Duration: 16 days

Time span: May 29 2025 to June 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: 30.0 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 27.8 °C

Event center: 12.0°N 44.5°E

Area affected: 258716 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-29_to_2025-Jun-13_44.5_12.0

Heat wave occuring from May 24 2025 to May 26 2025 at 10.5°N 34.5°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • South Sudan
  • Sudan

Duration: 3 days

Time span: May 24 2025 to May 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 33.3 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 35.1 °C

Event center: 10.5°N 34.5°E

Area affected: 51469 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-24_to_2025-May-26_34.5_10.5

Heat wave occuring from May 14 2025 to May 19 2025 at 8.0°N 35.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • South Sudan

Duration: 6 days

Time span: May 14 2025 to May 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 26.6 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 33.3 °C

Event center: 8.0°N 35.0°E

Area affected: 76538 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-14_to_2025-May-19_35.0_8.0

Cold spell occuring from May 04 2025 to May 09 2025 at 3.0°N 37.0°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia
  • Kenya

Duration: 6 days

Time span: May 04 2025 to May 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 25.8 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 21.3 °C

Event center: 3.0°N 37.0°E

Area affected: 98767 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-04_to_2025-May-09_37.0_3.0

Heat wave occuring from April 18 2025 to April 21 2025 at 13.5°N 39.5°E

Download data: JSON

Event type: Heat wave

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

  • Eritrea
  • Ethiopia

Duration: 4 days

Time span: April 18 2025 to April 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 30.2 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 38.3 °C

Event center: 13.5°N 39.5°E

Area affected: 69126 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-18_to_2025-Apr-21_39.5_13.5