Category: Extremes affecting Brazil

Heat wave occuring from May 23 2026 to June 10 2026 at -7.0°S 305.0°E

Download data: JSON

Event type: Heat wave

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

  • Bolivia
  • Brazil
  • Peru

Duration: 19 days

Time span: May 23 2026 to June 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 29.1 °C

Event center: -7.0°S 305.0°E

Area affected: 1675954 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-May-23_to_2026-Jun-10_305.0_-7.0

Heat wave occuring from May 19 2026 to May 29 2026 at -2.5°S 318.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 11 days

Time span: May 19 2026 to May 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 28.1 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 29.3 °C

Event center: -2.5°S 318.0°E

Area affected: 95740 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-May-19_to_2026-May-29_318.0_-2.5

Heat wave occuring from May 15 2026 to May 21 2026 at -19.5°S 315.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 7 days

Time span: May 15 2026 to May 21 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 23.3 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 25.9 °C

Event center: -19.5°S 315.0°E

Area affected: 58923 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-May-15_to_2026-May-21_315.0_-19.5

Cold spell occuring from May 13 2026 to May 29 2026 at -6.5°S 323.5°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 17 days

Time span: May 13 2026 to May 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 23.9 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 21.8 °C

Event center: -6.5°S 323.5°E

Area affected: 70585 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: Cold_spell_2026-May-13_to_2026-May-29_323.5_-6.5

Heat wave occuring from May 13 2026 to May 23 2026 at -10.0°S 306.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 11 days

Time span: May 13 2026 to May 23 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 26.8 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 29.0 °C

Event center: -10.0°S 306.0°E

Area affected: 215342 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-May-13_to_2026-May-23_306.0_-10.0

Cold spell occuring from May 07 2026 to May 27 2026 at -33.0°S 307.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Bolivia
  • Brazil
  • Chile
  • Colombia
  • Paraguay
  • Peru
  • Uruguay

Duration: 21 days

Time span: May 07 2026 to May 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: 15.5 °C
  • Minimum temperature anomaly: -11.2 °C
  • Minimum temperature: -7.2 °C

Event center: -33.0°S 307.5°E

Area affected: 7892131 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: Cold_spell_2026-May-07_to_2026-May-27_307.5_-33.0

Heat wave occuring from April 24 2026 to May 30 2026 at -23.0°S 333.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Argentina
  • Brazil
  • Paraguay
  • South Georgia and the South Sandwich Islands
  • Uruguay

Duration: 37 days

Time span: April 24 2026 to May 30 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.5 °C
  • Mean temperature: 7.6 °C
  • Maximum temperature anomaly: 23.3 °C
  • Maximum temperature: 27.5 °C

Event center: -23.0°S 333.0°E

Area affected: 18900105 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-Apr-24_to_2026-May-30_333.0_-23.0

Heat wave occuring from June 29 2026 to July 02 2026 at -24.0°S 309.0°E

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 29 2026 to July 02 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 21.4 °C
  • Maximum temperature anomaly: 5.1 °C
  • Maximum temperature: 23.9 °C

Event center: -24.0°S 309.0°E

Area affected: 70786 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-Jun-29_to_2026-Jul-02_309.0_-24.0

Heat wave occuring from June 28 2026 to July 03 2026 at -8.5°S 297.5°E

Download data: JSON

Event type: Heat wave

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

  • Bolivia
  • Brazil

Duration: 6 days

Time span: June 28 2026 to July 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 29.0 °C

Event center: -8.5°S 297.5°E

Area affected: 316785 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jun-28_to_2026-Jul-03_297.5_-8.5

Heat wave occuring from June 27 2026 to July 02 2026 at -14.0°S 305.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 6 days

Time span: June 27 2026 to July 02 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 25.5 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 27.5 °C

Event center: -14.0°S 305.5°E

Area affected: 188508 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-Jun-27_to_2026-Jul-02_305.5_-14.0