Author: WEXA

Cold spell occuring from January 04 2026 to January 07 2026 at -15.5°S 313.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 4 days

Time span: January 04 2026 to January 07 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 22.0 °C
  • Minimum temperature anomaly: -4.6 °C
  • Minimum temperature: 17.0 °C

Event center: -15.5°S 313.0°E

Area affected: 335161 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_2026-Jan-04_to_2026-Jan-07_313.0_-15.5

Cold spell occuring from January 02 2026 to January 06 2026 at 84.5°N 187.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 5 days

Time span: January 02 2026 to January 06 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: -31.5 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: -34.3 °C

Event center: 84.5°N 187.0°E

Area affected: 158874 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_2026-Jan-02_to_2026-Jan-06_187.0_84.5

Cold spell occuring from January 02 2026 to January 10 2026 at 24.5°N 85.5°E

Download data: JSON

Event type: Cold spell

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

  • India
  • Nepal

Duration: 9 days

Time span: January 02 2026 to January 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 10.9 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 3.2 °C

Event center: 24.5°N 85.5°E

Area affected: 150541 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_2026-Jan-02_to_2026-Jan-10_85.5_24.5

Cold spell occuring from January 02 2026 to January 07 2026 at 15.5°N 343.0°E

Download data: JSON

Event type: Cold spell

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

  • Senegal

Duration: 6 days

Time span: January 02 2026 to January 07 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 22.3 °C
  • Minimum temperature anomaly: -3.0 °C
  • Minimum temperature: 19.5 °C

Event center: 15.5°N 343.0°E

Area affected: 165612 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_2026-Jan-02_to_2026-Jan-07_343.0_15.5

Cold spell occuring from January 01 2026 to January 09 2026 at -47.5°S 305.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Brazil
  • Uruguay

Duration: 9 days

Time span: January 01 2026 to January 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 13.3 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: 4.7 °C

Event center: -47.5°S 305.0°E

Area affected: 2994297 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_2026-Jan-01_to_2026-Jan-09_305.0_-47.5

Heat wave occuring from January 01 2026 to February 03 2026 at -1.5°S 89.5°E

Download data: JSON

Event type: Heat wave

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

  • India
  • Indonesia
  • Maldives

Duration: 34 days

Time span: January 01 2026 to February 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 27.8 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 29.1 °C

Event center: -1.5°S 89.5°E

Area affected: 4512453 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_2026-Jan-01_to_2026-Feb-03_89.5_-1.5

Cold spell occuring from December 31 2025 to January 04 2026 at 22.5°N 280.0°E

Download data: JSON

Event type: Cold spell

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

  • Bahamas
  • Cuba

Duration: 5 days

Time span: December 31 2025 to January 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 20.8 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 14.5 °C

Event center: 22.5°N 280.0°E

Area affected: 357665 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-Dec-31_to_2026-Jan-04_280.0_22.5

Heat wave occuring from December 30 2025 to January 01 2026 at -74.5°S 257.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 3 days

Time span: December 30 2025 to January 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: -1.6 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 2.0 °C

Event center: -74.5°S 257.5°E

Area affected: 196564 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-Dec-30_to_2026-Jan-01_257.5_-74.5

Cold spell occuring from December 30 2025 to January 14 2026 at 68.0°N 25.0°E

Download data: JSON

Event type: Cold spell

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

  • Denmark
  • Finland
  • Ireland
  • Norway
  • Russian Federation
  • Sweden
  • United Kingdom

Duration: 16 days

Time span: December 30 2025 to January 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -9.5 °C
  • Mean temperature: -12.1 °C
  • Minimum temperature anomaly: -26.0 °C
  • Minimum temperature: -36.7 °C

Event center: 68.0°N 25.0°E

Area affected: 3347680 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-Dec-30_to_2026-Jan-14_25.0_68.0

Heat wave occuring from December 30 2025 to January 16 2026 at -14.0°S 98.5°E

Download data: JSON

Event type: Heat wave

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

  • Christmas Island

Duration: 18 days

Time span: December 30 2025 to January 16 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 26.3 °C
  • Maximum temperature anomaly: 3.7 °C
  • Maximum temperature: 28.6 °C

Event center: -14.0°S 98.5°E

Area affected: 1676700 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-Dec-30_to_2026-Jan-16_98.5_-14.0