Category: Extremes affecting Australia

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 23 2025 to November 27 2025 at -15.0°S 128.5°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 5 days

Time span: November 23 2025 to November 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 27.6 °C
  • Minimum temperature anomaly: -5.4 °C
  • Minimum temperature: 25.7 °C

Event center: -15.0°S 128.5°E

Area affected: 104505 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-23_to_2025-Nov-27_128.5_-15.0

Heat wave occuring from November 16 2025 to November 21 2025 at -28.0°S 110.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 6 days

Time span: November 16 2025 to November 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 20.3 °C
  • Maximum temperature anomaly: 4.9 °C
  • Maximum temperature: 24.8 °C

Event center: -28.0°S 110.5°E

Area affected: 505953 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-16_to_2025-Nov-21_110.5_-28.0

Cold spell occuring from November 09 2025 to November 23 2025 at -11.5°S 131.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia
  • Indonesia

Duration: 15 days

Time span: November 09 2025 to November 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 26.9 °C
  • Minimum temperature anomaly: -9.7 °C
  • Minimum temperature: 21.9 °C

Event center: -11.5°S 131.0°E

Area affected: 1604164 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-09_to_2025-Nov-23_131.0_-11.5

Heat wave occuring from November 08 2025 to November 12 2025 at -27.0°S 113.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 5 days

Time span: November 08 2025 to November 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 21.3 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 30.0 °C

Event center: -27.0°S 113.5°E

Area affected: 515613 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-08_to_2025-Nov-12_113.5_-27.0

Cold spell occuring from November 03 2025 to November 05 2025 at -21.0°S 140.0°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 03 2025 to November 05 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -8.2 °C
  • Mean temperature: 20.6 °C
  • Minimum temperature anomaly: -13.3 °C
  • Minimum temperature: 15.7 °C

Event center: -21.0°S 140.0°E

Area affected: 309069 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-03_to_2025-Nov-05_140.0_-21.0

Cold spell occuring from October 26 2025 to October 29 2025 at -41.5°S 140.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 4 days

Time span: October 26 2025 to October 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 9.0 °C
  • Minimum temperature anomaly: -4.4 °C
  • Minimum temperature: 5.8 °C

Event center: -41.5°S 140.0°E

Area affected: 413513 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-26_to_2025-Oct-29_140.0_-41.5

Cold spell occuring from October 23 2025 to October 25 2025 at -22.5°S 114.5°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: October 23 2025 to October 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 21.6 °C
  • Minimum temperature anomaly: -5.2 °C
  • Minimum temperature: 19.6 °C

Event center: -22.5°S 114.5°E

Area affected: 87843 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-23_to_2025-Oct-25_114.5_-22.5

Heat wave occuring from October 14 2025 to October 17 2025 at -34.0°S 154.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 4 days

Time span: October 14 2025 to October 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 20.2 °C
  • Maximum temperature anomaly: 4.1 °C
  • Maximum temperature: 21.8 °C

Event center: -34.0°S 154.5°E

Area affected: 167023 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-14_to_2025-Oct-17_154.5_-34.0

Heat wave occuring from October 13 2025 to October 15 2025 at -20.0°S 135.0°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 3 days

Time span: October 13 2025 to October 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.1 °C
  • Mean temperature: 31.6 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 32.9 °C

Event center: -20.0°S 135.0°E

Area affected: 121551 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-13_to_2025-Oct-15_135.0_-20.0