Category: Heat waves affecting Argentina

Heat wave occuring from February 04 2026 to February 07 2026 at -19.5°S 296.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Bolivia, Plurinational State of
  • Paraguay

Duration: 4 days

Time span: February 04 2026 to February 07 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 29.2 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 34.3 °C

Event center: -19.5°S 296.5°E

Area affected: 91787 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-Feb-04_to_2026-Feb-07_296.5_-19.5

Heat wave occuring from February 02 2026 to February 07 2026 at -33.0°S 302.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Brazil
  • Uruguay

Duration: 6 days

Time span: February 02 2026 to February 07 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 27.7 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 33.0 °C

Event center: -33.0°S 302.0°E

Area affected: 312421 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-Feb-02_to_2026-Feb-07_302.0_-33.0

Heat wave occuring from February 01 2026 to February 14 2026 at -20.0°S 294.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Bolivia, Plurinational State of
  • Chile
  • Paraguay
  • Peru

Duration: 14 days

Time span: February 01 2026 to February 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 23.5 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: 36.0 °C

Event center: -20.0°S 294.5°E

Area affected: 515354 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-Feb-01_to_2026-Feb-14_294.5_-20.0

Heat wave occuring from February 01 2026 to February 03 2026 at -37.0°S 298.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina

Duration: 3 days

Time span: February 01 2026 to February 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 28.9 °C

Event center: -37.0°S 298.0°E

Area affected: 56725 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-Feb-01_to_2026-Feb-03_298.0_-37.0

Heat wave occuring from January 24 2026 to January 30 2026 at -30.5°S 301.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Brazil
  • Paraguay
  • Uruguay

Duration: 7 days

Time span: January 24 2026 to January 30 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 29.1 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 31.1 °C

Event center: -30.5°S 301.0°E

Area affected: 124315 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-24_to_2026-Jan-30_301.0_-30.5

Heat wave occuring from December 18 2025 to January 11 2026 at -34.0°S 307.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Brazil
  • Chile
  • Uruguay

Duration: 25 days

Time span: December 18 2025 to January 11 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.5 °C
  • Mean temperature: 22.2 °C
  • Maximum temperature anomaly: 11.7 °C
  • Maximum temperature: 34.9 °C

Event center: -34.0°S 307.0°E

Area affected: 1791321 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-18_to_2026-Jan-11_307.0_-34.0

Heat wave occuring from December 03 2025 to December 07 2025 at -35.5°S 301.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Uruguay

Duration: 5 days

Time span: December 03 2025 to December 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 25.4 °C
  • Maximum temperature anomaly: 8.3 °C
  • Maximum temperature: 29.2 °C

Event center: -35.5°S 301.5°E

Area affected: 430113 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-03_to_2025-Dec-07_301.5_-35.5

Heat wave occuring from November 03 2025 to November 15 2025 at -44.0°S 288.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 13 days

Time span: November 03 2025 to November 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 12.6 °C
  • Maximum temperature anomaly: 9.7 °C
  • Maximum temperature: 22.6 °C

Event center: -44.0°S 288.0°E

Area affected: 334109 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-03_to_2025-Nov-15_288.0_-44.0

Heat wave occuring from October 24 2025 to November 02 2025 at -56.5°S 313.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Chile

Duration: 10 days

Time span: October 24 2025 to November 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 1.8 °C
  • Maximum temperature anomaly: 14.6 °C
  • Maximum temperature: 15.8 °C

Event center: -56.5°S 313.0°E

Area affected: 5229526 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-24_to_2025-Nov-02_313.0_-56.5

Heat wave occuring from October 21 2025 to October 24 2025 at -30.5°S 296.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina

Duration: 4 days

Time span: October 21 2025 to October 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.6 °C
  • Mean temperature: 28.7 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 33.1 °C

Event center: -30.5°S 296.5°E

Area affected: 80361 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-21_to_2025-Oct-24_296.5_-30.5