Cold spell occuring from January 17 2024 to January 22 2024 at -21.0°S 27.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Eswatini
  • Mozambique
  • Namibia
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 6 days

Time span: January 17 2024 to January 22 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 20.6 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 12.7 °C

Event center: -21.0°S 27.0°E

Area affected: 886836 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_2024-Jan-17_to_2024-Jan-22_27.0_-21.0

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

Cold spell occuring from December 25 2023 to January 01 2024 at -28.5°S 27.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Eswatini
  • Lesotho
  • Mozambique
  • South Africa
  • Zimbabwe

Duration: 8 days

Time span: December 25 2023 to January 01 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 19.3 °C
  • Minimum temperature anomaly: -9.3 °C
  • Minimum temperature: 9.1 °C

Event center: -28.5°S 27.0°E

Area affected: 1463861 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_2023-Dec-25_to_2024-Jan-01_27.0_-28.5

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

Cold spell occuring from October 28 2023 to November 04 2023 at -29.5°S 29.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Eswatini
  • Lesotho
  • Malawi
  • Mozambique
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 8 days

Time span: October 28 2023 to November 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 16.2 °C
  • Minimum temperature anomaly: -14.9 °C
  • Minimum temperature: 0.5 °C

Event center: -29.5°S 29.0°E

Area affected: 3290242 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_2023-Oct-28_to_2023-Nov-04_29.0_-29.5

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

Cold spell occuring from September 24 2023 to September 27 2023 at -21.5°S 17.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Lesotho
  • Namibia
  • South Africa

Duration: 4 days

Time span: September 24 2023 to September 27 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.8 °C
  • Mean temperature: 16.6 °C
  • Minimum temperature anomaly: -9.7 °C
  • Minimum temperature: 7.5 °C

Event center: -21.5°S 17.0°E

Area affected: 653968 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_2023-Sep-24_to_2023-Sep-27_17.0_-21.5

Heat wave occuring from September 16 2023 to September 26 2023 at -18.5°S 25.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 11 days

Time span: September 16 2023 to September 26 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 6.4 °C
  • Maximum temperature: 30.7 °C

Event center: -18.5°S 25.0°E

Area affected: 618003 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-Sep-16_to_2023-Sep-26_25.0_-18.5

Cold spell occuring from September 11 2023 to September 13 2023 at -23.5°S 21.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Namibia

Duration: 3 days

Time span: September 11 2023 to September 13 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: 14.3 °C
  • Minimum temperature anomaly: -10.5 °C
  • Minimum temperature: 10.3 °C

Event center: -23.5°S 21.0°E

Area affected: 59526 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_2023-Sep-11_to_2023-Sep-13_21.0_-23.5

Heat wave occuring from September 01 2023 to September 11 2023 at -23.0°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
  • Zambia
  • Zimbabwe

Duration: 11 days

Time span: September 01 2023 to September 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 23.5 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 27.8 °C

Event center: -23.0°S 26.5°E

Area affected: 778976 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-Sep-01_to_2023-Sep-11_26.5_-23.0