Category: Extremes affecting South Sudan

Cold spell occuring from October 01 2025 to October 07 2025 at 4.0°N 35.5°E

Download data: JSON

Event type: Cold spell

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

  • Kenya
  • South Sudan
  • Uganda

Duration: 7 days

Time span: October 01 2025 to October 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 26.1 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 19.0 °C

Event center: 4.0°N 35.5°E

Area affected: 61687 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-Oct-01_to_2025-Oct-07_35.5_4.0

Heat wave occuring from August 20 2025 to October 12 2025 at 22.5°N 41.5°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Chad
  • Djibouti
  • Egypt
  • Eritrea
  • Ethiopia
  • Kenya
  • Oman
  • Saudi Arabia
  • Somalia
  • South Sudan
  • Sudan
  • United Arab Emirates
  • Yemen

Duration: 54 days

Time span: August 20 2025 to October 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 31.4 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 39.2 °C

Event center: 22.5°N 41.5°E

Area affected: 4543278 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-Aug-20_to_2025-Oct-12_41.5_22.5

Cold spell occuring from August 16 2025 to September 07 2025 at 14.5°N 40.0°E

Download data: JSON

Event type: Cold spell

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

  • Central African Republic
  • Chad
  • Djibouti
  • Eritrea
  • Ethiopia
  • Kenya
  • Niger
  • Oman
  • Saudi Arabia
  • South Sudan
  • Sudan
  • Uganda
  • Yemen

Duration: 23 days

Time span: August 16 2025 to September 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 26.5 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: 11.0 °C

Event center: 14.5°N 40.0°E

Area affected: 4160278 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-Aug-16_to_2025-Sep-07_40.0_14.5

Heat wave occuring from August 14 2025 to November 14 2025 at -4.5°S 24.5°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Burundi
  • Cameroon
  • Central African Republic
  • Chad
  • Congo
  • Congo, The Democratic Republic of the
  • Gabon
  • Kenya
  • Malawi
  • Rwanda
  • South Sudan
  • Sudan
  • Tanzania, United Republic of
  • Uganda
  • Zambia

Duration: 93 days

Time span: August 14 2025 to November 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 26.6 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 32.0 °C

Event center: -4.5°S 24.5°E

Area affected: 3906217 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-Aug-14_to_2025-Nov-14_24.5_-4.5

Heat wave occuring from May 29 2025 to June 04 2025 at 5.5°N 32.5°E

Download data: JSON

Event type: Heat wave

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

  • South Sudan

Duration: 7 days

Time span: May 29 2025 to June 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 29.6 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 31.6 °C

Event center: 5.5°N 32.5°E

Area affected: 52254 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-29_to_2025-Jun-04_32.5_5.5

Heat wave occuring from May 24 2025 to May 26 2025 at 10.5°N 34.5°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • South Sudan
  • Sudan

Duration: 3 days

Time span: May 24 2025 to May 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 33.3 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 35.1 °C

Event center: 10.5°N 34.5°E

Area affected: 51469 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-24_to_2025-May-26_34.5_10.5

Heat wave occuring from May 14 2025 to May 19 2025 at 8.0°N 35.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • South Sudan

Duration: 6 days

Time span: May 14 2025 to May 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 26.6 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 33.3 °C

Event center: 8.0°N 35.0°E

Area affected: 76538 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-14_to_2025-May-19_35.0_8.0

Heat wave occuring from April 20 2025 to May 04 2025 at -6.5°S 33.0°E

Download data: JSON

Event type: Heat wave

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

  • Burundi
  • Central African Republic
  • Congo, The Democratic Republic of the
  • Kenya
  • Malawi
  • Rwanda
  • South Sudan
  • Tanzania, United Republic of
  • Uganda
  • Zambia

Duration: 15 days

Time span: April 20 2025 to May 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 25.6 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 33.2 °C

Event center: -6.5°S 33.0°E

Area affected: 1930929 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-20_to_2025-May-04_33.0_-6.5

Heat wave occuring from April 12 2025 to April 18 2025 at 6.5°N 24.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 7 days

Time span: April 12 2025 to April 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 28.1 °C
  • Maximum temperature anomaly: 4.3 °C
  • Maximum temperature: 31.5 °C

Event center: 6.5°N 24.0°E

Area affected: 755624 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-12_to_2025-Apr-18_24.0_6.5

Cold spell occuring from March 22 2025 to March 25 2025 at 11.5°N 26.5°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Libya
  • South Sudan
  • Sudan

Duration: 4 days

Time span: March 22 2025 to March 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 22.5 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 15.2 °C

Event center: 11.5°N 26.5°E

Area affected: 852348 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-Mar-22_to_2025-Mar-25_26.5_11.5