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: 6 days

Time span: October 18 2025 to October 23 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.6 °C
• Mean temperature: 8.3 °C
• Maximum temperature anomaly: 7.2 °C
• Maximum temperature: 16.3 °C

Event center: -55.0°S 300.0°E

Area affected: 191245 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-18_to_2025-Oct-23_300.0_-55.0

Download data: JSON

Event type: Heat wave

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

• Argentina
• Chile

Duration: 11 days

Time span: October 13 2025 to October 23 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.3 °C
• Mean temperature: 8.7 °C
• Maximum temperature anomaly: 6.4 °C
• Maximum temperature: 20.8 °C

Event center: -30.5°S 290.5°E

Area affected: 71331 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-13_to_2025-Oct-23_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: October 07 2025 to October 10 2025

Statistics over entire affected area:

• Mean temperature anomaly: 4.7 °C
• Mean temperature: 12.7 °C
• Maximum temperature anomaly: 8.4 °C
• Maximum temperature: 23.4 °C

Event center: -39.0°S 289.0°E

Area affected: 97210 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-07_to_2025-Oct-10_289.0_-39.0

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: September 24 2025 to September 28 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.7 °C
• Mean temperature: 8.8 °C
• Maximum temperature anomaly: 6.4 °C
• Maximum temperature: 14.0 °C

Event center: -51.5°S 290.0°E

Area affected: 98346 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-Sep-24_to_2025-Sep-28_290.0_-51.5