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: August 05 2025 to August 11 2025

Statistics over entire affected area:

• Mean temperature anomaly: 0.6 °C
• Mean temperature: 26.5 °C
• Maximum temperature anomaly: 0.9 °C
• Maximum temperature: 28.0 °C

Event center: -4.5°S 322.5°E

Area affected: 104938 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-05_to_2025-Aug-11_322.5_-4.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 6 days

Time span: August 04 2025 to August 09 2025

Statistics over entire affected area:

• Mean temperature anomaly: 0.5 °C
• Mean temperature: 27.0 °C
• Maximum temperature anomaly: 1.0 °C
• Maximum temperature: 29.4 °C

Event center: -1.5°S 317.5°E

Area affected: 86516 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-04_to_2025-Aug-09_317.5_-1.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 13 days

Time span: August 04 2025 to August 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.6 °C
• Mean temperature: 25.3 °C
• Maximum temperature anomaly: 4.6 °C
• Maximum temperature: 31.3 °C

Event center: -10.0°S 317.5°E

Area affected: 1303932 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-04_to_2025-Aug-16_317.5_-10.0

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 8 days

Time span: July 26 2025 to August 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.4 °C
• Mean temperature: 25.4 °C
• Maximum temperature anomaly: 5.0 °C
• Maximum temperature: 30.7 °C

Event center: -12.0°S 332.0°E

Area affected: 1237140 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-26_to_2025-Aug-02_332.0_-12.0

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 9 days

Time span: July 18 2025 to July 26 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.5 °C
• Mean temperature: 26.9 °C
• Maximum temperature anomaly: 2.6 °C
• Maximum temperature: 30.0 °C

Event center: -6.0°S 320.5°E

Area affected: 229793 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-18_to_2025-Jul-26_320.5_-6.0

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 9 days

Time span: June 25 2025 to July 03 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.3 °C
• Mean temperature: 28.0 °C
• Maximum temperature anomaly: 2.2 °C
• Maximum temperature: 29.5 °C

Event center: -7.5°S 315.5°E

Area affected: 85922 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-Jun-25_to_2025-Jul-03_315.5_-7.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 4 days

Time span: June 23 2025 to June 26 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.0 °C
• Mean temperature: 27.4 °C
• Maximum temperature anomaly: 1.5 °C
• Maximum temperature: 28.6 °C

Event center: -1.5°S 314.5°E

Area affected: 58667 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-Jun-23_to_2025-Jun-26_314.5_-1.5