Category: Heat waves affecting South Africa

Heat wave occuring from July 03 2024 to July 05 2024 at -23.0°S 32.0°E

Download data: JSON

Event type: Heat wave

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

  • Mozambique
  • South Africa

Duration: 3 days

Time span: July 03 2024 to July 05 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 21.4 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 24.2 °C

Event center: -23.0°S 32.0°E

Area affected: 54162 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-Jul-03_to_2024-Jul-05_32.0_-23.0

Heat wave occuring from June 28 2024 to July 06 2024 at -27.5°S 26.5°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Lesotho
  • Namibia
  • South Africa

Duration: 9 days

Time span: June 28 2024 to July 06 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 16.4 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 20.4 °C

Event center: -27.5°S 26.5°E

Area affected: 434645 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-Jun-28_to_2024-Jul-06_26.5_-27.5

Heat wave occuring from June 04 2024 to June 18 2024 at -12.5°S 15.0°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: June 04 2024 to June 18 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 18.9 °C
  • Maximum temperature anomaly: 9.1 °C
  • Maximum temperature: 28.1 °C

Event center: -12.5°S 15.0°E

Area affected: 1011619 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-Jun-04_to_2024-Jun-18_15.0_-12.5

Heat wave occuring from January 23 2024 to January 30 2024 at -33.0°S 24.5°E

Download data: JSON

Event type: Heat wave

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

  • South Africa

Duration: 8 days

Time span: January 23 2024 to January 30 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 27.5 °C
  • Maximum temperature anomaly: 9.6 °C
  • Maximum temperature: 31.9 °C

Event center: -33.0°S 24.5°E

Area affected: 142834 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-Jan-23_to_2024-Jan-30_24.5_-33.0

Heat wave occuring from January 23 2024 to January 25 2024 at -31.5°S 18.0°E

Download data: JSON

Event type: Heat wave

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

  • Namibia
  • South Africa

Duration: 3 days

Time span: January 23 2024 to January 25 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 30.0 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 33.8 °C

Event center: -31.5°S 18.0°E

Area affected: 67271 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-Jan-23_to_2024-Jan-25_18.0_-31.5

Heat wave occuring from January 12 2024 to January 16 2024 at -22.5°S 17.5°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Namibia
  • South Africa

Duration: 5 days

Time span: January 12 2024 to January 16 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 4.1 °C
  • Mean temperature: 30.7 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 33.0 °C

Event center: -22.5°S 17.5°E

Area affected: 110506 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-Jan-12_to_2024-Jan-16_17.5_-22.5

Heat wave occuring from December 20 2023 to December 24 2023 at -25.0°S 28.0°E

Download data: JSON

Event type: Heat wave

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

  • South Africa

Duration: 5 days

Time span: December 20 2023 to December 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 24.5 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 30.4 °C

Event center: -25.0°S 28.0°E

Area affected: 72165 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_2023-Dec-20_to_2023-Dec-24_28.0_-25.0

Heat wave occuring from December 16 2023 to December 28 2023 at -22.5°S 18.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Botswana
  • Namibia
  • South Africa

Duration: 13 days

Time span: December 16 2023 to December 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 30.5 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 35.6 °C

Event center: -22.5°S 18.5°E

Area affected: 592019 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_2023-Dec-16_to_2023-Dec-28_18.5_-22.5

Heat wave occuring from October 29 2023 to November 04 2023 at -29.0°S 15.5°E

Download data: JSON

Event type: Heat wave

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

  • Namibia
  • South Africa

Duration: 7 days

Time span: October 29 2023 to November 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 18.1 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 27.1 °C

Event center: -29.0°S 15.5°E

Area affected: 551378 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_2023-Oct-29_to_2023-Nov-04_15.5_-29.0

Heat wave occuring from October 21 2023 to November 01 2023 at -20.5°S 17.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Botswana
  • Namibia
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 12 days

Time span: October 21 2023 to November 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 30.1 °C
  • Maximum temperature anomaly: 6.5 °C
  • Maximum temperature: 33.7 °C

Event center: -20.5°S 17.5°E

Area affected: 713266 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_2023-Oct-21_to_2023-Nov-01_17.5_-20.5