Category: Heat waves affecting Argentina

Heat wave occuring from May 16 2025 to July 24 2025 at -69.0°S 290.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Chile

Duration: 70 days

Time span: May 16 2025 to July 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 9.4 °C
  • Mean temperature: -14.4 °C
  • Maximum temperature anomaly: 27.9 °C
  • Maximum temperature: 22.9 °C

Event center: -69.0°S 290.5°E

Area affected: 22408545 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-May-16_to_2025-Jul-24_290.5_-69.0

Heat wave occuring from May 14 2025 to May 28 2025 at -13.5°S 287.5°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
  • Peru

Duration: 15 days

Time span: May 14 2025 to May 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 8.2 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 26.6 °C

Event center: -13.5°S 287.5°E

Area affected: 490358 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-May-14_to_2025-May-28_287.5_-13.5

Heat wave occuring from May 02 2025 to May 12 2025 at -35.0°S 309.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Brazil
  • Uruguay

Duration: 11 days

Time span: May 02 2025 to May 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 22.3 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 26.8 °C

Event center: -35.0°S 309.5°E

Area affected: 2618431 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-May-02_to_2025-May-12_309.5_-35.0

Heat wave occuring from May 01 2025 to May 08 2025 at -30.5°S 294.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina

Duration: 8 days

Time span: May 01 2025 to May 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 22.8 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 25.1 °C

Event center: -30.5°S 294.0°E

Area affected: 89024 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-May-01_to_2025-May-08_294.0_-30.5

Heat wave occuring from March 31 2025 to April 15 2025 at -75.5°S 282.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Chile

Duration: 16 days

Time span: March 31 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: -6.5 °C
  • Maximum temperature anomaly: 23.1 °C
  • Maximum temperature: 15.6 °C

Event center: -75.5°S 282.5°E

Area affected: 5218903 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-Mar-31_to_2025-Apr-15_282.5_-75.5

Heat wave occuring from March 23 2025 to March 27 2025 at -47.0°S 290.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 5 days

Time span: March 23 2025 to March 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 13.5 °C
  • Maximum temperature anomaly: 8.9 °C
  • Maximum temperature: 21.4 °C

Event center: -47.0°S 290.0°E

Area affected: 216832 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-Mar-23_to_2025-Mar-27_290.0_-47.0

Heat wave occuring from March 18 2025 to March 21 2025 at -37.0°S 287.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 4 days

Time span: March 18 2025 to March 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 16.2 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 20.8 °C

Event center: -37.0°S 287.0°E

Area affected: 74180 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-Mar-18_to_2025-Mar-21_287.0_-37.0

Heat wave occuring from March 17 2025 to March 23 2025 at -33.5°S 293.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Uruguay

Duration: 7 days

Time span: March 17 2025 to March 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 24.7 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 31.0 °C

Event center: -33.5°S 293.0°E

Area affected: 475160 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-Mar-17_to_2025-Mar-23_293.0_-33.5

Heat wave occuring from January 22 2025 to January 29 2025 at -20.5°S 302.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Bolivia, Plurinational State of
  • Brazil
  • Paraguay

Duration: 8 days

Time span: January 22 2025 to January 29 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 32.6 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 35.2 °C

Event center: -20.5°S 302.0°E

Area affected: 225628 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-Jan-22_to_2025-Jan-29_302.0_-20.5

Heat wave occuring from January 04 2025 to March 17 2025 at -28.0°S 300.5°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 73 days

Time span: January 04 2025 to March 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 25.3 °C
  • Maximum temperature anomaly: 13.2 °C
  • Maximum temperature: 38.7 °C

Event center: -28.0°S 300.5°E

Area affected: 16681204 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-Jan-04_to_2025-Mar-17_300.5_-28.0