Author: WEXA

Cold spell occuring from October 20 2025 to October 24 2025 at -23.0°S 36.0°E

Download data: JSON

Event type: Cold spell

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

  • Mozambique

Duration: 5 days

Time span: October 20 2025 to October 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 22.9 °C
  • Minimum temperature anomaly: -3.7 °C
  • Minimum temperature: 21.4 °C

Event center: -23.0°S 36.0°E

Area affected: 66109 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-20_to_2025-Oct-24_36.0_-23.0

Cold spell occuring from October 20 2025 to October 24 2025 at -19.0°S 27.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Mozambique
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 5 days

Time span: October 20 2025 to October 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 19.9 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: 12.9 °C

Event center: -19.0°S 27.0°E

Area affected: 484379 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-20_to_2025-Oct-24_27.0_-19.0

Heat wave occuring from October 20 2025 to November 05 2025 at -19.0°S 45.0°E

Download data: JSON

Event type: Heat wave

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

  • Madagascar
  • Mozambique

Duration: 17 days

Time span: October 20 2025 to November 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 24.6 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 31.6 °C

Event center: -19.0°S 45.0°E

Area affected: 1776870 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-Oct-20_to_2025-Nov-05_45.0_-19.0

Heat wave occuring from October 19 2025 to October 29 2025 at -49.5°S 315.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Brazil
  • Uruguay

Duration: 11 days

Time span: October 19 2025 to October 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 14.0 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 21.9 °C

Event center: -49.5°S 315.0°E

Area affected: 3288239 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-Oct-19_to_2025-Oct-29_315.0_-49.5

Cold spell occuring from October 19 2025 to November 11 2025 at 67.0°N 165.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 24 days

Time span: October 19 2025 to November 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -10.7 °C
  • Mean temperature: -29.1 °C
  • Minimum temperature anomaly: -18.3 °C
  • Minimum temperature: -38.5 °C

Event center: 67.0°N 165.5°E

Area affected: 766243 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-19_to_2025-Nov-11_165.5_67.0

Cold spell occuring from October 19 2025 to October 25 2025 at 40.5°N 141.0°E

Download data: JSON

Event type: Cold spell

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

  • Japan

Duration: 7 days

Time span: October 19 2025 to October 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 8.9 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 4.0 °C

Event center: 40.5°N 141.0°E

Area affected: 87422 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-19_to_2025-Oct-25_141.0_40.5

Cold spell occuring from October 19 2025 to October 23 2025 at 9.5°N 36.5°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia

Duration: 5 days

Time span: October 19 2025 to October 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 17.7 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: 13.8 °C

Event center: 9.5°N 36.5°E

Area affected: 91925 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-19_to_2025-Oct-23_36.5_9.5

Cold spell occuring from October 19 2025 to October 21 2025 at -12.0°S 163.5°E

Download data: JSON

Event type: Cold spell

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

  • Solomon Islands

Duration: 3 days

Time span: October 19 2025 to October 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 24.9 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 24.0 °C

Event center: -12.0°S 163.5°E

Area affected: 63326 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-19_to_2025-Oct-21_163.5_-12.0

Heat wave occuring from October 18 2025 to October 22 2025 at 60.5°N 359.0°E

Download data: JSON

Event type: Heat wave

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

  • United Kingdom

Duration: 5 days

Time span: October 18 2025 to October 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 12.2 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 13.1 °C

Event center: 60.5°N 359.0°E

Area affected: 145254 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-Oct-18_to_2025-Oct-22_359.0_60.5

Heat wave occuring from October 18 2025 to October 29 2025 at -4.0°S 15.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 12 days

Time span: October 18 2025 to October 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 26.0 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 27.7 °C

Event center: -4.0°S 15.0°E

Area affected: 178736 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-Oct-18_to_2025-Oct-29_15.0_-4.0