Author: WEXA

Heat wave occuring from June 22 2026 to June 27 2026 at -5.5°S 306.0°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 22 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 2.1 °C
  • Maximum temperature: 27.9 °C

Event center: -5.5°S 306.0°E

Area affected: 61427 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-22_to_2026-Jun-27_306.0_-5.5

Cold spell occuring from June 22 2026 to June 29 2026 at -78.0°S 48.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 8 days

Time span: June 22 2026 to June 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -9.4 °C
  • Mean temperature: -67.2 °C
  • Minimum temperature anomaly: -13.1 °C
  • Minimum temperature: -72.1 °C

Event center: -78.0°S 48.5°E

Area affected: 326242 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-Jun-22_to_2026-Jun-29_48.5_-78.0

Cold spell occuring from June 22 2026 to June 27 2026 at -81.0°S 353.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 6 days

Time span: June 22 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -51.5 °C
  • Minimum temperature anomaly: -12.8 °C
  • Minimum temperature: -58.7 °C

Event center: -81.0°S 353.5°E

Area affected: 308155 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-Jun-22_to_2026-Jun-27_353.5_-81.0

Heat wave occuring from June 21 2026 to June 29 2026 at 28.5°N 257.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 9 days

Time span: June 21 2026 to June 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 31.2 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 35.7 °C

Event center: 28.5°N 257.5°E

Area affected: 355234 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-21_to_2026-Jun-29_257.5_28.5

Cold spell occuring from June 21 2026 to June 24 2026 at 41.5°N 273.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 4 days

Time span: June 21 2026 to June 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 18.4 °C
  • Minimum temperature anomaly: -7.5 °C
  • Minimum temperature: 13.9 °C

Event center: 41.5°N 273.0°E

Area affected: 96095 km$^2$



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

Event ID: Cold_spell_2026-Jun-21_to_2026-Jun-24_273.0_41.5

Heat wave occuring from June 20 2026 to June 23 2026 at -75.0°S 125.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 4 days

Time span: June 20 2026 to June 23 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 10.0 °C
  • Mean temperature: -46.8 °C
  • Maximum temperature anomaly: 15.8 °C
  • Maximum temperature: -41.1 °C

Event center: -75.0°S 125.5°E

Area affected: 181154 km$^2$



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

Event ID: Heat_wave_2026-Jun-20_to_2026-Jun-23_125.5_-75.0

Heat wave occuring from June 20 2026 to June 27 2026 at 64.5°N 199.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 8 days

Time span: June 20 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 17.2 °C
  • Maximum temperature anomaly: 8.6 °C
  • Maximum temperature: 23.2 °C

Event center: 64.5°N 199.0°E

Area affected: 285758 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-20_to_2026-Jun-27_199.0_64.5

Cold spell occuring from June 20 2026 to June 24 2026 at -4.0°S 34.0°E

Download data: JSON

Event type: Cold spell

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

  • Tanzania

Duration: 5 days

Time span: June 20 2026 to June 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.4 °C
  • Mean temperature: 20.9 °C
  • Minimum temperature anomaly: -2.1 °C
  • Minimum temperature: 14.1 °C

Event center: -4.0°S 34.0°E

Area affected: 107649 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-Jun-20_to_2026-Jun-24_34.0_-4.0

Heat wave occuring from June 19 2026 to June 24 2026 at 73.0°N 130.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation

Duration: 6 days

Time span: June 19 2026 to June 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 4.0 °C
  • Maximum temperature anomaly: 16.9 °C
  • Maximum temperature: 23.0 °C

Event center: 73.0°N 130.0°E

Area affected: 1182741 km$^2$



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

Event ID: Heat_wave_2026-Jun-19_to_2026-Jun-24_130.0_73.0

Heat wave occuring from June 19 2026 to June 30 2026 at -69.0°S 292.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 12 days

Time span: June 19 2026 to June 30 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 7.8 °C
  • Mean temperature: -2.0 °C
  • Maximum temperature anomaly: 16.0 °C
  • Maximum temperature: 5.3 °C

Event center: -69.0°S 292.0°E

Area affected: 2445159 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-19_to_2026-Jun-30_292.0_-69.0