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: 10 days

Time span: January 29 2026 to February 07 2026

Statistics over entire affected area:

• Mean temperature anomaly: 2.1 °C
• Mean temperature: 29.0 °C
• Maximum temperature anomaly: 4.0 °C
• Maximum temperature: 32.3 °C

Event center: -9.0°S 323.5°E

Area affected: 189051 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_2026-Jan-29_to_2026-Feb-07_323.5_-9.0

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 10 days

Time span: January 28 2026 to February 06 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.8 °C
• Mean temperature: 27.0 °C
• Maximum temperature anomaly: 2.8 °C
• Maximum temperature: 28.9 °C

Event center: -4.5°S 306.0°E

Area affected: 750678 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_2026-Jan-28_to_2026-Feb-06_306.0_-4.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 22 days

Time span: December 28 2025 to January 18 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.0 °C
• Mean temperature: 27.1 °C
• Maximum temperature anomaly: 2.9 °C
• Maximum temperature: 28.9 °C

Event center: 0.5°N 311.0°E

Area affected: 933208 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-Dec-28_to_2026-Jan-18_311.0_0.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 4 days

Time span: December 26 2025 to December 29 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.9 °C
• Mean temperature: 26.8 °C
• Maximum temperature anomaly: 2.9 °C
• Maximum temperature: 28.5 °C

Event center: -8.0°S 308.5°E

Area affected: 230016 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-Dec-26_to_2025-Dec-29_308.5_-8.0

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 15 days

Time span: December 22 2025 to January 05 2026

Statistics over entire affected area:

• Mean temperature anomaly: 2.7 °C
• Mean temperature: 27.2 °C
• Maximum temperature anomaly: 5.7 °C
• Maximum temperature: 32.2 °C

Event center: -18.5°S 319.5°E

Area affected: 1944050 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-Dec-22_to_2026-Jan-05_319.5_-18.5

Download data: JSON

Event type: Heat wave

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

• Brazil

Duration: 7 days

Time span: December 08 2025 to December 14 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.3 °C
• Mean temperature: 26.7 °C
• Maximum temperature anomaly: 6.1 °C
• Maximum temperature: 31.7 °C

Event center: -21.5°S 318.0°E

Area affected: 88515 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-Dec-08_to_2025-Dec-14_318.0_-21.5