Category: Extremes affecting South Africa

Cold spell occuring from September 29 2020 to October 04 2020 at -28.0°S 15.5°E

Download data: JSON

Event type: Cold spell

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

  • Namibia
  • South Africa

Duration: 6 days

Time span: September 29 2020 to October 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 13.4 °C
  • Minimum temperature anomaly: -11.2 °C
  • Minimum temperature: 8.1 °C

Event center: -28.0°S 15.5°E

Area affected: 94135 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_2020-Sep-29_to_2020-Oct-04_15.5_-28.0

Cold spell occuring from September 27 2020 to September 30 2020 at -30.0°S 32.0°E

Download data: JSON

Event type: Cold spell

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

  • Eswatini
  • South Africa

Duration: 4 days

Time span: September 27 2020 to September 30 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 16.6 °C
  • Minimum temperature anomaly: -6.7 °C
  • Minimum temperature: 11.6 °C

Event center: -30.0°S 32.0°E

Area affected: 107312 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_2020-Sep-27_to_2020-Sep-30_32.0_-30.0

Cold spell occuring from September 26 2020 to September 29 2020 at -28.0°S 26.5°E

Download data: JSON

Event type: Cold spell

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

  • Lesotho
  • South Africa

Duration: 4 days

Time span: September 26 2020 to September 29 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.8 °C
  • Mean temperature: 12.0 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: 7.1 °C

Event center: -28.0°S 26.5°E

Area affected: 165747 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_2020-Sep-26_to_2020-Sep-29_26.5_-28.0

Cold spell occuring from September 26 2020 to September 28 2020 at -34.5°S 19.5°E

Download data: JSON

Event type: Cold spell

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

  • South Africa

Duration: 3 days

Time span: September 26 2020 to September 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 10.0 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 4.9 °C

Event center: -34.5°S 19.5°E

Area affected: 81364 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_2020-Sep-26_to_2020-Sep-28_19.5_-34.5

Cold spell occuring from September 26 2020 to September 29 2020 at -34.0°S 26.5°E

Download data: JSON

Event type: Cold spell

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

  • South Africa

Duration: 4 days

Time span: September 26 2020 to September 29 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 14.6 °C
  • Minimum temperature anomaly: -5.1 °C
  • Minimum temperature: 9.8 °C

Event center: -34.0°S 26.5°E

Area affected: 66998 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_2020-Sep-26_to_2020-Sep-29_26.5_-34.0

Heat wave occuring from September 24 2020 to November 19 2020 at -12.0°S 287.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Argentina
  • Bolivia, Plurinational State of
  • Botswana
  • Brazil
  • Burundi
  • Colombia
  • Congo, The Democratic Republic of the
  • Costa Rica
  • Ecuador
  • Eswatini
  • Honduras
  • Lesotho
  • Madagascar
  • Malawi
  • Mozambique
  • Namibia
  • Nicaragua
  • Panama
  • Paraguay
  • Peru
  • Rwanda
  • South Africa
  • Tanzania, United Republic of
  • Uganda
  • Uruguay
  • Zambia
  • Zimbabwe

Duration: 57 days

Time span: September 24 2020 to November 19 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 3.4 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 14.9 °C
  • Maximum temperature: 36.5 °C

Event center: -12.0°S 287.5°E

Area affected: 22419625 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_2020-Sep-24_to_2020-Nov-19_287.5_-12.0

Heat wave occuring from September 04 2020 to September 12 2020 at -27.5°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: 9 days

Time span: September 04 2020 to September 12 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.7 °C
  • Mean temperature: 24.8 °C
  • Maximum temperature anomaly: 13.1 °C
  • Maximum temperature: 31.0 °C

Event center: -27.5°S 17.5°E

Area affected: 474035 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_2020-Sep-04_to_2020-Sep-12_17.5_-27.5

Cold spell occuring from August 28 2020 to September 04 2020 at -27.0°S 15.0°E

Download data: JSON

Event type: Cold spell

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

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

Duration: 8 days

Time span: August 28 2020 to September 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 12.4 °C
  • Minimum temperature anomaly: -10.2 °C
  • Minimum temperature: 1.6 °C

Event center: -27.0°S 15.0°E

Area affected: 2612420 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_2020-Aug-28_to_2020-Sep-04_15.0_-27.0

Cold spell occuring from August 18 2020 to August 21 2020 at -18.0°S 20.5°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Namibia
  • South Africa

Duration: 4 days

Time span: August 18 2020 to August 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 12.6 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: 1.9 °C

Event center: -18.0°S 20.5°E

Area affected: 911396 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_2020-Aug-18_to_2020-Aug-21_20.5_-18.0

Cold spell occuring from August 15 2020 to August 19 2020 at -39.5°S 18.0°E

Download data: JSON

Event type: Cold spell

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

  • South Africa

Duration: 5 days

Time span: August 15 2020 to August 19 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 9.8 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: 2.7 °C

Event center: -39.5°S 18.0°E

Area affected: 349708 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_2020-Aug-15_to_2020-Aug-19_18.0_-39.5