Author: WEXA

Heat wave occuring from November 30 2025 to December 04 2025 at 7.0°N 81.5°E

Download data: JSON

Event type: Heat wave

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

  • Sri Lanka

Duration: 5 days

Time span: November 30 2025 to December 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 27.8 °C

Event center: 7.0°N 81.5°E

Area affected: 94928 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-Nov-30_to_2025-Dec-04_81.5_7.0

Cold spell occuring from November 29 2025 to December 01 2025 at 48.5°N 255.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 3 days

Time span: November 29 2025 to December 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -11.7 °C
  • Mean temperature: -16.0 °C
  • Minimum temperature anomaly: -19.5 °C
  • Minimum temperature: -25.1 °C

Event center: 48.5°N 255.0°E

Area affected: 57710 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-Nov-29_to_2025-Dec-01_255.0_48.5

Heat wave occuring from November 29 2025 to December 05 2025 at 4.5°N 102.5°E

Download data: JSON

Event type: Heat wave

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

  • Indonesia
  • Malaysia
  • Thailand

Duration: 7 days

Time span: November 29 2025 to December 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 2.5 °C
  • Maximum temperature: 28.1 °C

Event center: 4.5°N 102.5°E

Area affected: 150931 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-Nov-29_to_2025-Dec-05_102.5_4.5

Heat wave occuring from November 29 2025 to December 05 2025 at 46.0°N 50.5°E

Download data: JSON

Event type: Heat wave

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

  • Kazakhstan

Duration: 7 days

Time span: November 29 2025 to December 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 4.5 °C
  • Maximum temperature anomaly: 6.9 °C
  • Maximum temperature: 6.8 °C

Event center: 46.0°N 50.5°E

Area affected: 74364 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-Nov-29_to_2025-Dec-05_50.5_46.0

Cold spell occuring from November 29 2025 to December 01 2025 at -39.5°S 148.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 3 days

Time span: November 29 2025 to December 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 12.3 °C
  • Minimum temperature anomaly: -5.9 °C
  • Minimum temperature: 10.0 °C

Event center: -39.5°S 148.0°E

Area affected: 158334 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-Nov-29_to_2025-Dec-01_148.0_-39.5

Cold spell occuring from November 29 2025 to December 07 2025 at 3.5°N 298.5°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • Venezuela, Bolivarian Republic of

Duration: 9 days

Time span: November 29 2025 to December 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 23.9 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: 21.0 °C

Event center: 3.5°N 298.5°E

Area affected: 92487 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-Nov-29_to_2025-Dec-07_298.5_3.5

Cold spell occuring from November 29 2025 to December 01 2025 at 54.0°N 98.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 3 days

Time span: November 29 2025 to December 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -13.5 °C
  • Mean temperature: -28.5 °C
  • Minimum temperature anomaly: -19.9 °C
  • Minimum temperature: -37.3 °C

Event center: 54.0°N 98.0°E

Area affected: 105277 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-Nov-29_to_2025-Dec-01_98.0_54.0

Cold spell occuring from November 28 2025 to December 03 2025 at -25.0°S 138.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 6 days

Time span: November 28 2025 to December 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.6 °C
  • Mean temperature: 24.7 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 21.0 °C

Event center: -25.0°S 138.0°E

Area affected: 487738 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-Nov-28_to_2025-Dec-03_138.0_-25.0

Cold spell occuring from November 27 2025 to December 02 2025 at 60.0°N 117.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 6 days

Time span: November 27 2025 to December 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -12.9 °C
  • Mean temperature: -40.1 °C
  • Minimum temperature anomaly: -19.4 °C
  • Minimum temperature: -44.8 °C

Event center: 60.0°N 117.0°E

Area affected: 105426 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-Nov-27_to_2025-Dec-02_117.0_60.0

Cold spell occuring from November 27 2025 to November 30 2025 at 13.5°N 76.0°E

Download data: JSON

Event type: Cold spell

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

  • India

Duration: 4 days

Time span: November 27 2025 to November 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 21.3 °C
  • Minimum temperature anomaly: -2.9 °C
  • Minimum temperature: 18.8 °C

Event center: 13.5°N 76.0°E

Area affected: 107884 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-Nov-27_to_2025-Nov-30_76.0_13.5