Category: Extremes affecting Brazil

Heat wave occuring from June 23 2025 to June 26 2025 at -1.5°S 314.5°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 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

Heat wave occuring from June 16 2025 to July 11 2025 at 5.0°N 307.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil
  • French Guiana
  • Guyana
  • Suriname
  • Venezuela, Bolivarian Republic of

Duration: 26 days

Time span: June 16 2025 to July 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 28.1 °C

Event center: 5.0°N 307.5°E

Area affected: 1591242 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-16_to_2025-Jul-11_307.5_5.0

Cold spell occuring from June 12 2025 to June 15 2025 at -4.0°S 312.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 4 days

Time span: June 12 2025 to June 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.4 °C
  • Mean temperature: 25.2 °C
  • Minimum temperature anomaly: -2.2 °C
  • Minimum temperature: 22.2 °C

Event center: -4.0°S 312.0°E

Area affected: 222167 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_2025-Jun-12_to_2025-Jun-15_312.0_-4.0

Heat wave occuring from June 11 2025 to June 19 2025 at 4.0°N 291.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil
  • Colombia
  • Venezuela, Bolivarian Republic of

Duration: 9 days

Time span: June 11 2025 to June 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 25.5 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 29.2 °C

Event center: 4.0°N 291.0°E

Area affected: 329388 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-11_to_2025-Jun-19_291.0_4.0

Cold spell occuring from June 10 2025 to June 19 2025 at -17.5°S 319.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 10 days

Time span: June 10 2025 to June 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 18.0 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 9.8 °C

Event center: -17.5°S 319.0°E

Area affected: 1630574 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_2025-Jun-10_to_2025-Jun-19_319.0_-17.5

Cold spell occuring from June 06 2025 to June 12 2025 at -12.0°S 313.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 7 days

Time span: June 06 2025 to June 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 24.8 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: 23.0 °C

Event center: -12.0°S 313.0°E

Area affected: 54414 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_2025-Jun-06_to_2025-Jun-12_313.0_-12.0

Heat wave occuring from June 06 2025 to June 13 2025 at -6.5°S 320.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 8 days

Time span: June 06 2025 to June 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 27.1 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 30.0 °C

Event center: -6.5°S 320.5°E

Area affected: 216948 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-06_to_2025-Jun-13_320.5_-6.5

Heat wave occuring from June 04 2025 to June 17 2025 at -5.0°S 324.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 14 days

Time span: June 04 2025 to June 17 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 28.9 °C

Event center: -5.0°S 324.5°E

Area affected: 785440 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-04_to_2025-Jun-17_324.5_-5.0

Cold spell occuring from May 28 2025 to June 02 2025 at -11.5°S 301.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Bolivia, Plurinational State of
  • Brazil
  • Paraguay
  • Peru
  • Uruguay

Duration: 6 days

Time span: May 28 2025 to June 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 16.7 °C
  • Minimum temperature anomaly: -10.4 °C
  • Minimum temperature: 4.8 °C

Event center: -11.5°S 301.5°E

Area affected: 2519036 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_2025-May-28_to_2025-Jun-02_301.5_-11.5

Heat wave occuring from May 25 2025 to June 02 2025 at 0.0°N 314.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 9 days

Time span: May 25 2025 to June 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.0 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 28.6 °C

Event center: 0.0°N 314.0°E

Area affected: 256470 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-May-25_to_2025-Jun-02_314.0_0.0