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

Heat wave occuring from June 29 2025 to July 06 2025 at -4.0°S 38.5°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: June 29 2025 to July 06 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 21.7 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 24.7 °C

Event center: -4.0°S 38.5°E

Area affected: 70740 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-Jun-29_to_2025-Jul-06_38.5_-4.0

Heat wave occuring from April 20 2025 to May 04 2025 at -6.5°S 33.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 15 days

Time span: April 20 2025 to May 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 25.6 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 33.2 °C

Event center: -6.5°S 33.0°E

Area affected: 1930929 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-20_to_2025-May-04_33.0_-6.5

Heat wave occuring from March 11 2025 to March 18 2025 at 1.5°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: March 11 2025 to March 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 29.8 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 35.7 °C

Event center: 1.5°N 37.0°E

Area affected: 129731 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-Mar-11_to_2025-Mar-18_37.0_1.5

Heat wave occuring from February 07 2025 to February 10 2025 at 1.0°N 37.5°E

Download data: JSON

Event type: Heat wave

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

  • Kenya

Duration: 4 days

Time span: February 07 2025 to February 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 27.6 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 31.7 °C

Event center: 1.0°N 37.5°E

Area affected: 114343 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-Feb-07_to_2025-Feb-10_37.5_1.0

Heat wave occuring from January 18 2025 to February 03 2025 at 1.0°N 37.5°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya
  • South Sudan
  • Uganda

Duration: 17 days

Time span: January 18 2025 to February 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 33.1 °C

Event center: 1.0°N 37.5°E

Area affected: 256288 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-Jan-18_to_2025-Feb-03_37.5_1.0

Heat wave occuring from January 08 2025 to January 15 2025 at 0.0°N 38.0°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: January 08 2025 to January 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 30.4 °C

Event center: 0.0°N 38.0°E

Area affected: 123574 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-Jan-08_to_2025-Jan-15_38.0_0.0

Heat wave occuring from September 27 2024 to October 01 2024 at 5.0°N 38.5°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya

Duration: 5 days

Time span: September 27 2024 to October 01 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 25.4 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 29.8 °C

Event center: 5.0°N 38.5°E

Area affected: 58537 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-Sep-27_to_2024-Oct-01_38.5_5.0

Heat wave occuring from September 18 2024 to September 22 2024 at 3.0°N 42.0°E

Download data: JSON

Event type: Heat wave

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

  • Kenya
  • Somalia

Duration: 5 days

Time span: September 18 2024 to September 22 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 28.6 °C
  • Maximum temperature anomaly: 1.5 °C
  • Maximum temperature: 30.9 °C

Event center: 3.0°N 42.0°E

Area affected: 114193 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-Sep-18_to_2024-Sep-22_42.0_3.0