Category: Extremes affecting Congo, The Democratic Republic of the

Heat wave occuring from May 26 2025 to June 04 2025 at -4.0°S 25.5°E

Download data: JSON

Event type: Heat wave

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

  • Congo, The Democratic Republic of the
  • Rwanda

Duration: 10 days

Time span: May 26 2025 to June 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 25.8 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 28.6 °C

Event center: -4.0°S 25.5°E

Area affected: 178982 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-26_to_2025-Jun-04_25.5_-4.0

Heat wave occuring from May 26 2025 to May 30 2025 at 3.0°N 24.5°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Congo, The Democratic Republic of the

Duration: 5 days

Time span: May 26 2025 to May 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 28.2 °C

Event center: 3.0°N 24.5°E

Area affected: 219032 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-26_to_2025-May-30_24.5_3.0

Cold spell occuring from May 23 2025 to June 05 2025 at -10.5°S 21.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Congo, The Democratic Republic of the
  • Malawi
  • Mozambique
  • Tanzania, United Republic of
  • Zambia
  • Zimbabwe

Duration: 14 days

Time span: May 23 2025 to June 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 18.8 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 11.2 °C

Event center: -10.5°S 21.0°E

Area affected: 1519055 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-May-23_to_2025-Jun-05_21.0_-10.5

Heat wave occuring from May 18 2025 to May 22 2025 at -17.5°S 28.5°E

Download data: JSON

Event type: Heat wave

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

  • Congo, The Democratic Republic of the
  • Mozambique
  • Zambia
  • Zimbabwe

Duration: 5 days

Time span: May 18 2025 to May 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 22.2 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 28.0 °C

Event center: -17.5°S 28.5°E

Area affected: 355987 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-18_to_2025-May-22_28.5_-17.5

Cold spell occuring from May 13 2025 to May 18 2025 at -11.0°S 26.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Congo, The Democratic Republic of the
  • Zambia

Duration: 6 days

Time span: May 13 2025 to May 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 18.9 °C
  • Minimum temperature anomaly: -3.2 °C
  • Minimum temperature: 14.8 °C

Event center: -11.0°S 26.0°E

Area affected: 233480 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-May-13_to_2025-May-18_26.0_-11.0

Heat wave occuring from May 06 2025 to May 09 2025 at 3.0°N 15.0°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Central African Republic
  • Congo
  • Gabon

Duration: 4 days

Time span: May 06 2025 to May 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 2.5 °C
  • Maximum temperature: 28.0 °C

Event center: 3.0°N 15.0°E

Area affected: 52501 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-09_15.0_3.0

Heat wave occuring from May 06 2025 to May 09 2025 at 2.5°N 21.0°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Congo, The Democratic Republic of the

Duration: 4 days

Time span: May 06 2025 to May 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 29.2 °C

Event center: 2.5°N 21.0°E

Area affected: 86281 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-09_21.0_2.5

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

Heat wave occuring from April 29 2025 to May 01 2025 at 0.5°N 21.5°E

Download data: JSON

Event type: Heat wave

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

  • Congo, The Democratic Republic of the

Duration: 3 days

Time span: April 29 2025 to May 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 28.4 °C

Event center: 0.5°N 21.5°E

Area affected: 52544 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-Apr-29_to_2025-May-01_21.5_0.5

Heat wave occuring from April 29 2025 to May 03 2025 at -16.0°S 29.5°E

Download data: JSON

Event type: Heat wave

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

  • Congo, The Democratic Republic of the
  • Mozambique
  • Zambia
  • Zimbabwe

Duration: 5 days

Time span: April 29 2025 to May 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 24.1 °C
  • Maximum temperature anomaly: 5.6 °C
  • Maximum temperature: 30.2 °C

Event center: -16.0°S 29.5°E

Area affected: 340344 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-Apr-29_to_2025-May-03_29.5_-16.0