Category: Heat waves affecting Eswatini

4 heat waves identified in Eswatini since 2020

Heat wave occuring from August 29 2012 to September 01 2012 at -26.0°S 31.5°E

Download data: JSON

Event type: Heat wave

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

  • Eswatini
  • South Africa

Duration: 4 days

Time span: August 29 2012 to September 01 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 21.8 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 26.5 °C

Event center: -26.0°S 31.5°E

Area affected: 80198 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_2012-Aug-29_to_2012-Sep-01_31.5_-26.0

Heat wave occuring from April 27 2012 to May 13 2012 at -26.5°S 27.5°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 17 days

Time span: April 27 2012 to May 13 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 20.6 °C
  • Maximum temperature anomaly: 8.4 °C
  • Maximum temperature: 28.3 °C

Event center: -26.5°S 27.5°E

Area affected: 1206881 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_2012-Apr-27_to_2012-May-13_27.5_-26.5

Heat wave occuring from November 08 2011 to November 22 2011 at -21.0°S 25.5°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 15 days

Time span: November 08 2011 to November 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 29.5 °C
  • Maximum temperature anomaly: 8.3 °C
  • Maximum temperature: 34.8 °C

Event center: -21.0°S 25.5°E

Area affected: 1191487 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_2011-Nov-08_to_2011-Nov-22_25.5_-21.0

Heat wave occuring from May 23 2011 to May 25 2011 at -25.5°S 33.0°E

Download data: JSON

Event type: Heat wave

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

  • Eswatini
  • Mozambique
  • South Africa

Duration: 3 days

Time span: May 23 2011 to May 25 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 24.0 °C
  • Maximum temperature anomaly: 6.4 °C
  • Maximum temperature: 27.7 °C

Event center: -25.5°S 33.0°E

Area affected: 81016 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_2011-May-23_to_2011-May-25_33.0_-25.5

Heat wave occuring from May 12 2011 to May 23 2011 at -26.0°S 32.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 12 days

Time span: May 12 2011 to May 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 23.9 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 27.7 °C

Event center: -26.0°S 32.0°E

Area affected: 1300601 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_2011-May-12_to_2011-May-23_32.0_-26.0

Heat wave occuring from April 24 2011 to April 27 2011 at -27.5°S 32.0°E

Download data: JSON

Event type: Heat wave

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

  • Eswatini
  • Mozambique
  • South Africa

Duration: 4 days

Time span: April 24 2011 to April 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 25.4 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 27.3 °C

Event center: -27.5°S 32.0°E

Area affected: 77436 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_2011-Apr-24_to_2011-Apr-27_32.0_-27.5

Heat wave occuring from March 18 2011 to March 31 2011 at -20.5°S 33.5°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 14 days

Time span: March 18 2011 to March 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 32.4 °C

Event center: -20.5°S 33.5°E

Area affected: 1295719 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_2011-Mar-18_to_2011-Mar-31_33.5_-20.5

Heat wave occuring from March 09 2011 to March 18 2011 at -25.5°S 28.0°E

Download data: JSON

Event type: Heat wave

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

  • Eswatini
  • Mozambique
  • South Africa
  • Zimbabwe

Duration: 10 days

Time span: March 09 2011 to March 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 32.0 °C

Event center: -25.5°S 28.0°E

Area affected: 336188 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_2011-Mar-09_to_2011-Mar-18_28.0_-25.5

Heat wave occuring from September 28 2010 to October 10 2010 at -20.0°S 15.5°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 13 days

Time span: September 28 2010 to October 10 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 26.2 °C
  • Maximum temperature anomaly: 10.0 °C
  • Maximum temperature: 30.9 °C

Event center: -20.0°S 15.5°E

Area affected: 1072343 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_2010-Sep-28_to_2010-Oct-10_15.5_-20.0

Heat wave occuring from July 14 2026 to July 24 2026 at -25.5°S 28.5°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Eswatini
  • Mozambique
  • South Africa

Duration: 11 days

Time span: July 14 2026 to July 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 16.4 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 22.1 °C

Event center: -25.5°S 28.5°E

Area affected: 207527 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jul-14_to_2026-Jul-24_28.5_-25.5