Author: WEXA

Cold spell occuring from November 27 2025 to December 07 2025 at -15.0°S 212.5°E

Download data: JSON

Event type: Cold spell

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

  • Cook Islands
  • French Polynesia

Duration: 11 days

Time span: November 27 2025 to December 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.4 °C
  • Mean temperature: 25.3 °C
  • Minimum temperature anomaly: -2.3 °C
  • Minimum temperature: 23.9 °C

Event center: -15.0°S 212.5°E

Area affected: 1016444 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-07_212.5_-15.0

Heat wave occuring from November 27 2025 to November 30 2025 at 35.5°N 109.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Mongolia

Duration: 4 days

Time span: November 27 2025 to November 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: 3.8 °C
  • Maximum temperature anomaly: 10.9 °C
  • Maximum temperature: 9.5 °C

Event center: 35.5°N 109.0°E

Area affected: 435077 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-27_to_2025-Nov-30_109.0_35.5

Cold spell occuring from November 26 2025 to December 04 2025 at 19.0°N 57.5°E

Download data: JSON

Event type: Cold spell

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

  • Oman

Duration: 9 days

Time span: November 26 2025 to December 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 22.1 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 19.2 °C

Event center: 19.0°N 57.5°E

Area affected: 69173 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-26_to_2025-Dec-04_57.5_19.0

Cold spell occuring from November 26 2025 to December 08 2025 at 26.0°N 1.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Libya
  • Tunisia

Duration: 13 days

Time span: November 26 2025 to December 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 10.0 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: 0.8 °C

Event center: 26.0°N 1.5°E

Area affected: 1457236 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-26_to_2025-Dec-08_1.5_26.0

Heat wave occuring from November 26 2025 to December 03 2025 at -64.5°S 159.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 8 days

Time span: November 26 2025 to December 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 0.2 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 1.2 °C

Event center: -64.5°S 159.5°E

Area affected: 343080 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-26_to_2025-Dec-03_159.5_-64.5

Heat wave occuring from November 26 2025 to December 02 2025 at 33.5°N 113.5°E

Download data: JSON

Event type: Heat wave

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

  • China

Duration: 7 days

Time span: November 26 2025 to December 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 11.4 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 18.1 °C

Event center: 33.5°N 113.5°E

Area affected: 479188 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-26_to_2025-Dec-02_113.5_33.5

Heat wave occuring from November 26 2025 to December 04 2025 at 7.0°N 117.5°E

Download data: JSON

Event type: Heat wave

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

  • Malaysia
  • Philippines

Duration: 9 days

Time span: November 26 2025 to December 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.1 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 28.7 °C

Event center: 7.0°N 117.5°E

Area affected: 205410 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-26_to_2025-Dec-04_117.5_7.0

Heat wave occuring from November 26 2025 to January 09 2026 at 43.5°N 172.5°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation
  • United States

Duration: 45 days

Time span: November 26 2025 to January 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: 2.7 °C
  • Maximum temperature anomaly: 34.5 °C
  • Maximum temperature: 26.0 °C

Event center: 43.5°N 172.5°E

Area affected: 12313111 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-26_to_2026-Jan-09_172.5_43.5

Heat wave occuring from November 26 2025 to December 02 2025 at -18.5°S 312.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 7 days

Time span: November 26 2025 to December 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 5.1 °C
  • Maximum temperature: 30.9 °C

Event center: -18.5°S 312.5°E

Area affected: 323199 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-26_to_2025-Dec-02_312.5_-18.5

Cold spell occuring from November 25 2025 to November 30 2025 at 11.5°N 345.0°E

Download data: JSON

Event type: Cold spell

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

  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 6 days

Time span: November 25 2025 to November 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 25.4 °C
  • Minimum temperature anomaly: -4.2 °C
  • Minimum temperature: 23.7 °C

Event center: 11.5°N 345.0°E

Area affected: 105065 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-25_to_2025-Nov-30_345.0_11.5