Category: Cold spells affecting Brazil

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

Cold spell occuring from December 23 2025 to December 28 2025 at -13.5°S 292.5°E

Download data: JSON

Event type: Cold spell

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

  • Bolivia, Plurinational State of
  • Brazil
  • Peru

Duration: 6 days

Time span: December 23 2025 to December 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 22.5 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 4.9 °C

Event center: -13.5°S 292.5°E

Area affected: 577492 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-23_to_2025-Dec-28_292.5_-13.5

Cold spell occuring from December 22 2025 to December 25 2025 at -9.0°S 324.5°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: December 22 2025 to December 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 24.7 °C
  • Minimum temperature anomaly: -1.8 °C
  • Minimum temperature: 22.4 °C

Event center: -9.0°S 324.5°E

Area affected: 58130 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-22_to_2025-Dec-25_324.5_-9.0

Cold spell occuring from December 20 2025 to December 26 2025 at -5.0°S 309.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 7 days

Time span: December 20 2025 to December 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 24.2 °C
  • Minimum temperature anomaly: -5.9 °C
  • Minimum temperature: 21.6 °C

Event center: -5.0°S 309.0°E

Area affected: 893135 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-20_to_2025-Dec-26_309.0_-5.0

Cold spell occuring from December 19 2025 to December 25 2025 at -15.5°S 321.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 7 days

Time span: December 19 2025 to December 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 20.1 °C

Event center: -15.5°S 321.0°E

Area affected: 261830 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-19_to_2025-Dec-25_321.0_-15.5

Cold spell occuring from December 17 2025 to December 20 2025 at -8.0°S 289.5°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: December 17 2025 to December 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 23.5 °C
  • Minimum temperature anomaly: -4.1 °C
  • Minimum temperature: 21.2 °C

Event center: -8.0°S 289.5°E

Area affected: 168383 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-17_to_2025-Dec-20_289.5_-8.0

Cold spell occuring from December 17 2025 to December 19 2025 at -22.5°S 315.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 3 days

Time span: December 17 2025 to December 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 19.2 °C
  • Minimum temperature anomaly: -4.5 °C
  • Minimum temperature: 16.4 °C

Event center: -22.5°S 315.0°E

Area affected: 65360 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-17_to_2025-Dec-19_315.0_-22.5

Cold spell occuring from December 16 2025 to December 19 2025 at -16.5°S 299.0°E

Download data: JSON

Event type: Cold spell

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

  • Bolivia, Plurinational State of
  • Brazil

Duration: 4 days

Time span: December 16 2025 to December 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 23.2 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 19.8 °C

Event center: -16.5°S 299.0°E

Area affected: 62383 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-16_to_2025-Dec-19_299.0_-16.5

Cold spell occuring from December 13 2025 to December 17 2025 at 3.5°N 303.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • Guyana
  • Suriname

Duration: 5 days

Time span: December 13 2025 to December 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 24.8 °C
  • Minimum temperature anomaly: -3.0 °C
  • Minimum temperature: 23.6 °C

Event center: 3.5°N 303.0°E

Area affected: 74081 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-13_to_2025-Dec-17_303.0_3.5

Cold spell occuring from December 08 2025 to December 14 2025 at -25.5°S 306.5°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • Paraguay

Duration: 7 days

Time span: December 08 2025 to December 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 21.5 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 17.4 °C

Event center: -25.5°S 306.5°E

Area affected: 90448 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-08_to_2025-Dec-14_306.5_-25.5