Cold spell occuring from October 01 2025 to October 07 2025 at 4.0°N 35.5°E

Download data: JSON

Event type: Cold spell

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

  • Kenya
  • South Sudan
  • Uganda

Duration: 7 days

Time span: October 01 2025 to October 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 26.1 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 19.0 °C

Event center: 4.0°N 35.5°E

Area affected: 61687 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-Oct-01_to_2025-Oct-07_35.5_4.0

Heat wave occuring from September 06 2025 to September 13 2025 at 1.0°N 37.0°E

Download data: JSON

Event type: Heat wave

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

  • Kenya

Duration: 8 days

Time span: September 06 2025 to September 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 27.8 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 31.7 °C

Event center: 1.0°N 37.0°E

Area affected: 74123 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-06_to_2025-Sep-13_37.0_1.0

Heat wave occuring from September 02 2025 to September 23 2025 at -2.5°S 35.5°E

Download data: JSON

Event type: Heat wave

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

  • Kenya
  • Malawi
  • Tanzania, United Republic of
  • Zambia

Duration: 22 days

Time span: September 02 2025 to September 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 23.8 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 29.8 °C

Event center: -2.5°S 35.5°E

Area affected: 814839 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-02_to_2025-Sep-23_35.5_-2.5

Heat wave occuring from August 24 2025 to September 04 2025 at 1.0°N 37.0°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 24 2025 to September 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 25.1 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 31.1 °C

Event center: 1.0°N 37.0°E

Area affected: 89417 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-24_to_2025-Sep-04_37.0_1.0

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 14 2025 to November 14 2025 at -4.5°S 24.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Burundi
  • Cameroon
  • Central African Republic
  • Chad
  • Congo
  • Congo, The Democratic Republic of the
  • Gabon
  • Kenya
  • Malawi
  • Rwanda
  • South Sudan
  • Sudan
  • Tanzania, United Republic of
  • Uganda
  • Zambia

Duration: 93 days

Time span: August 14 2025 to November 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 26.6 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 32.0 °C

Event center: -4.5°S 24.5°E

Area affected: 3906217 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-14_to_2025-Nov-14_24.5_-4.5

Heat wave occuring from August 12 2025 to August 19 2025 at -5.0°S 39.0°E

Download data: JSON

Event type: Heat wave

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

  • Kenya
  • Tanzania, United Republic of

Duration: 8 days

Time span: August 12 2025 to August 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 22.2 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 25.9 °C

Event center: -5.0°S 39.0°E

Area affected: 129412 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-12_to_2025-Aug-19_39.0_-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