Category: Heat waves affecting Namibia

Heat wave occuring from September 18 2025 to September 22 2025 at -22.5°S 19.0°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Namibia

Duration: 5 days

Time span: September 18 2025 to September 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 26.4 °C
  • Maximum temperature anomaly: 7.4 °C
  • Maximum temperature: 28.5 °C

Event center: -22.5°S 19.0°E

Area affected: 167647 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-18_to_2025-Sep-22_19.0_-22.5

Heat wave occuring from September 08 2025 to September 10 2025 at -18.5°S 22.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Botswana
  • Namibia

Duration: 3 days

Time span: September 08 2025 to September 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 4.7 °C
  • Maximum temperature: 28.3 °C

Event center: -18.5°S 22.5°E

Area affected: 61287 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-08_to_2025-Sep-10_22.5_-18.5

Heat wave occuring from August 25 2025 to September 06 2025 at -25.0°S 30.0°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Botswana
  • Eswatini
  • Lesotho
  • Namibia
  • South Africa

Duration: 13 days

Time span: August 25 2025 to September 06 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 20.3 °C
  • Maximum temperature anomaly: 12.9 °C
  • Maximum temperature: 31.1 °C

Event center: -25.0°S 30.0°E

Area affected: 1634868 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-25_to_2025-Sep-06_30.0_-25.0

Heat wave occuring from August 12 2025 to August 15 2025 at -27.0°S 23.0°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Namibia
  • South Africa

Duration: 4 days

Time span: August 12 2025 to August 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 18.5 °C
  • Maximum temperature anomaly: 6.5 °C
  • Maximum temperature: 21.8 °C

Event center: -27.0°S 23.0°E

Area affected: 124160 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-15_23.0_-27.0

Heat wave occuring from July 22 2025 to July 30 2025 at -21.0°S 17.5°E

Download data: JSON

Event type: Heat wave

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

  • Namibia

Duration: 9 days

Time span: July 22 2025 to July 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 19.5 °C
  • Maximum temperature anomaly: 5.7 °C
  • Maximum temperature: 24.7 °C

Event center: -21.0°S 17.5°E

Area affected: 105896 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-22_to_2025-Jul-30_17.5_-21.0

Heat wave occuring from July 13 2025 to July 22 2025 at -27.5°S 27.0°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Lesotho
  • Namibia
  • South Africa
  • Zimbabwe

Duration: 10 days

Time span: July 13 2025 to July 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 15.9 °C
  • Maximum temperature anomaly: 7.0 °C
  • Maximum temperature: 19.9 °C

Event center: -27.5°S 27.0°E

Area affected: 508985 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-13_to_2025-Jul-22_27.0_-27.5

Heat wave occuring from May 22 2025 to May 28 2025 at -19.5°S 9.5°E

Download data: JSON

Event type: Heat wave

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

  • Namibia

Duration: 7 days

Time span: May 22 2025 to May 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 20.7 °C
  • Maximum temperature anomaly: 9.2 °C
  • Maximum temperature: 28.4 °C

Event center: -19.5°S 9.5°E

Area affected: 208182 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-22_to_2025-May-28_9.5_-19.5

Heat wave occuring from May 06 2025 to May 09 2025 at -19.5°S 13.0°E

Download data: JSON

Event type: Heat wave

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

  • Namibia

Duration: 4 days

Time span: May 06 2025 to May 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 21.9 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 29.6 °C

Event center: -19.5°S 13.0°E

Area affected: 141921 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-06_to_2025-May-09_13.0_-19.5

Heat wave occuring from May 06 2025 to May 20 2025 at -12.5°S 13.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Namibia
  • South Africa

Duration: 15 days

Time span: May 06 2025 to May 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 23.5 °C
  • Maximum temperature anomaly: 11.2 °C
  • Maximum temperature: 31.1 °C

Event center: -12.5°S 13.5°E

Area affected: 2492357 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-06_to_2025-May-20_13.5_-12.5

Heat wave occuring from March 19 2025 to April 02 2025 at -16.0°S 19.0°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Congo, The Democratic Republic of the
  • Namibia
  • Zambia

Duration: 15 days

Time span: March 19 2025 to April 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 24.2 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 27.9 °C

Event center: -16.0°S 19.0°E

Area affected: 726664 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-19_to_2025-Apr-02_19.0_-16.0