Category: Heat waves affecting Brazil

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 7 days

Time span: November 26 2025 to December 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.7 °C
• Mean temperature: 27.4 °C
• Maximum temperature anomaly: 5.1 °C
• Maximum temperature: 30.9 °C

Event center: -18.5°S 312.5°E

Area affected: 323199 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-26_to_2025-Dec-02_312.5_-18.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 6 days

Time span: November 22 2025 to November 27 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.2 °C
• Mean temperature: 29.5 °C
• Maximum temperature anomaly: 3.1 °C
• Maximum temperature: 31.7 °C

Event center: -6.5°S 315.0°E

Area affected: 67607 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-22_to_2025-Nov-27_315.0_-6.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 6 days

Time span: November 19 2025 to November 24 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.6 °C
• Mean temperature: 27.2 °C
• Maximum temperature anomaly: 2.2 °C
• Maximum temperature: 27.9 °C

Event center: -10.5°S 298.0°E

Area affected: 57829 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-19_to_2025-Nov-24_298.0_-10.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 13 days

Time span: November 09 2025 to November 21 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.7 °C
• Mean temperature: 28.7 °C
• Maximum temperature anomaly: 6.5 °C
• Maximum temperature: 33.5 °C

Event center: -8.5°S 306.0°E

Area affected: 2299963 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-09_to_2025-Nov-21_306.0_-8.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 6 days

Time span: November 05 2025 to November 10 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.9 °C
• Mean temperature: 28.2 °C
• Maximum temperature anomaly: 3.3 °C
• Maximum temperature: 30.0 °C

Event center: -5.0°S 305.0°E

Area affected: 190668 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-05_to_2025-Nov-10_305.0_-5.0

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 8 days

Time span: November 04 2025 to November 11 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.3 °C
• Mean temperature: 29.3 °C
• Maximum temperature anomaly: 4.0 °C
• Maximum temperature: 34.2 °C

Event center: -8.5°S 318.5°E

Area affected: 239897 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-04_to_2025-Nov-11_318.5_-8.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 9 days

Time span: November 01 2025 to November 09 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.9 °C
• Mean temperature: 28.0 °C
• Maximum temperature anomaly: 3.0 °C
• Maximum temperature: 29.3 °C

Event center: -11.5°S 298.0°E

Area affected: 258836 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-01_to_2025-Nov-09_298.0_-11.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 6 days

Time span: October 31 2025 to November 05 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.7 °C
• Mean temperature: 29.3 °C
• Maximum temperature anomaly: 2.5 °C
• Maximum temperature: 30.5 °C

Event center: 2.0°N 307.5°E

Area affected: 95802 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-31_to_2025-Nov-05_307.5_2.0