Category: Heat waves affecting Argentina

Download data: JSON

Event type: Heat wave

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

• Argentina
• Chile

Duration: 10 days

Time span: August 23 2025 to September 01 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.2 °C
• Mean temperature: 8.2 °C
• Maximum temperature anomaly: 6.9 °C
• Maximum temperature: 15.6 °C

Event center: -42.5°S 288.5°E

Area affected: 744641 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-Aug-23_to_2025-Sep-01_288.5_-42.5

Download data: JSON

Event type: Heat wave

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

• Argentina
• Chile

Duration: 7 days

Time span: August 14 2025 to August 20 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.7 °C
• Mean temperature: 6.4 °C
• Maximum temperature anomaly: 5.7 °C
• Maximum temperature: 11.4 °C

Event center: -40.0°S 288.0°E

Area affected: 78740 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-Aug-14_to_2025-Aug-20_288.0_-40.0

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: August 06 2025 to August 10 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.5 °C
• Mean temperature: 5.1 °C
• Maximum temperature anomaly: 6.0 °C
• Maximum temperature: 8.2 °C

Event center: -54.0°S 288.5°E

Area affected: 88518 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-Aug-06_to_2025-Aug-10_288.5_-54.0

Download data: JSON

Event type: Heat wave

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

• Argentina
• Chile

Duration: 34 days

Time span: July 21 2025 to August 23 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.9 °C
• Mean temperature: 18.3 °C
• Maximum temperature anomaly: 8.9 °C
• Maximum temperature: 26.4 °C

Event center: -26.0°S 267.5°E

Area affected: 10281053 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-Jul-21_to_2025-Aug-23_267.5_-26.0

Download data: JSON

Event type: Heat wave

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

• Argentina
• Chile

Duration: 15 days

Time span: July 17 2025 to July 31 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.6 °C
• Mean temperature: 1.7 °C
• Maximum temperature anomaly: 10.3 °C
• Maximum temperature: 13.4 °C

Event center: -30.5°S 290.5°E

Area affected: 140451 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-Jul-17_to_2025-Jul-31_290.5_-30.5

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: May 19 2025 to May 22 2025

Statistics over entire affected area:

• Mean temperature anomaly: 4.1 °C
• Mean temperature: 10.9 °C
• Maximum temperature anomaly: 7.2 °C
• Maximum temperature: 17.3 °C

Event center: -30.5°S 289.0°E

Area affected: 73684 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-19_to_2025-May-22_289.0_-30.5