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

Cold spell occuring from April 30 2025 to May 14 2025 at -19.5°S 17.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Congo, The Democratic Republic of the
  • Lesotho
  • Malawi
  • Mozambique
  • Namibia
  • South Africa
  • Tanzania, United Republic of
  • Zambia
  • Zimbabwe

Duration: 15 days

Time span: April 30 2025 to May 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 16.5 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 3.1 °C

Event center: -19.5°S 17.0°E

Area affected: 4054624 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_2025-Apr-30_to_2025-May-14_17.0_-19.5

Cold spell occuring from April 05 2025 to April 13 2025 at -17.5°S 12.5°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Namibia

Duration: 9 days

Time span: April 05 2025 to April 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 20.5 °C
  • Minimum temperature anomaly: -5.6 °C
  • Minimum temperature: 13.9 °C

Event center: -17.5°S 12.5°E

Area affected: 248575 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_2025-Apr-05_to_2025-Apr-13_12.5_-17.5

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

Heat wave occuring from March 13 2025 to March 25 2025 at -10.0°S 14.0°E

Download data: JSON

Event type: Heat wave

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

  • Angola

Duration: 13 days

Time span: March 13 2025 to March 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 24.6 °C
  • Maximum temperature anomaly: 2.7 °C
  • Maximum temperature: 29.3 °C

Event center: -10.0°S 14.0°E

Area affected: 112681 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-13_to_2025-Mar-25_14.0_-10.0

Heat wave occuring from February 26 2025 to March 07 2025 at -4.5°S 11.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Congo

Duration: 10 days

Time span: February 26 2025 to March 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 0.9 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 1.6 °C
  • Maximum temperature: 28.7 °C

Event center: -4.5°S 11.5°E

Area affected: 154005 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-Feb-26_to_2025-Mar-07_11.5_-4.5

Heat wave occuring from February 14 2025 to February 21 2025 at -14.5°S 17.0°E

Download data: JSON

Event type: Heat wave

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

  • Angola

Duration: 8 days

Time span: February 14 2025 to February 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 23.0 °C
  • Maximum temperature anomaly: 3.1 °C
  • Maximum temperature: 25.8 °C

Event center: -14.5°S 17.0°E

Area affected: 212522 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-Feb-14_to_2025-Feb-21_17.0_-14.5

Heat wave occuring from January 31 2025 to February 11 2025 at -17.5°S 29.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 12 days

Time span: January 31 2025 to February 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 26.2 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 29.9 °C

Event center: -17.5°S 29.0°E

Area affected: 466831 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-Jan-31_to_2025-Feb-11_29.0_-17.5

Heat wave occuring from January 30 2025 to February 03 2025 at -16.0°S 15.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Namibia

Duration: 5 days

Time span: January 30 2025 to February 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 26.7 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 30.2 °C

Event center: -16.0°S 15.5°E

Area affected: 85824 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-Jan-30_to_2025-Feb-03_15.5_-16.0

Heat wave occuring from October 19 2024 to November 04 2024 at -13.0°S 15.0°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Botswana
  • Congo, The Democratic Republic of the
  • Mozambique
  • Namibia
  • Zambia
  • Zimbabwe

Duration: 17 days

Time span: October 19 2024 to November 04 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 5.7 °C
  • Maximum temperature: 34.0 °C

Event center: -13.0°S 15.0°E

Area affected: 1160795 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-Oct-19_to_2024-Nov-04_15.0_-13.0