Author: WEXA

Heat wave occuring from February 22 2026 to February 25 2026 at -77.0°S 323.5°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: February 22 2026 to February 25 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.5 °C
  • Mean temperature: -2.1 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: -1.0 °C

Event center: -77.0°S 323.5°E

Area affected: 105063 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-Feb-22_to_2026-Feb-25_323.5_-77.0

Heat wave occuring from February 22 2026 to February 24 2026 at -52.5°S 159.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 3 days

Time span: February 22 2026 to February 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 10.0 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 12.7 °C

Event center: -52.5°S 159.5°E

Area affected: 273843 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-Feb-22_to_2026-Feb-24_159.5_-52.5

Heat wave occuring from February 21 2026 to March 04 2026 at 20.5°N 110.5°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Hong Kong
  • Lao People’s Democratic Republic
  • Taiwan, Province of China
  • Thailand
  • Viet Nam

Duration: 12 days

Time span: February 21 2026 to March 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 24.6 °C
  • Maximum temperature anomaly: 8.2 °C
  • Maximum temperature: 29.5 °C

Event center: 20.5°N 110.5°E

Area affected: 1128611 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-Feb-21_to_2026-Mar-04_110.5_20.5

Cold spell occuring from February 20 2026 to March 01 2026 at -14.5°S 312.0°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: February 20 2026 to March 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 23.0 °C
  • Minimum temperature anomaly: -3.2 °C
  • Minimum temperature: 19.8 °C

Event center: -14.5°S 312.0°E

Area affected: 152895 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-Feb-20_to_2026-Mar-01_312.0_-14.5

Heat wave occuring from February 20 2026 to February 25 2026 at 4.5°N 99.0°E

Download data: JSON

Event type: Heat wave

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

  • Malaysia

Duration: 6 days

Time span: February 20 2026 to February 25 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 28.2 °C
  • Maximum temperature anomaly: 1.3 °C
  • Maximum temperature: 28.6 °C

Event center: 4.5°N 99.0°E

Area affected: 52409 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-Feb-20_to_2026-Feb-25_99.0_4.5

Heat wave occuring from February 19 2026 to February 22 2026 at -43.5°S 278.0°E

Download data: JSON

Event type: Heat wave

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

  • Chile

Duration: 4 days

Time span: February 19 2026 to February 22 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 14.2 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 16.8 °C

Event center: -43.5°S 278.0°E

Area affected: 302608 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-Feb-19_to_2026-Feb-22_278.0_-43.5

Cold spell occuring from February 19 2026 to March 06 2026 at -13.5°S 317.5°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 16 days

Time span: February 19 2026 to March 06 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 23.5 °C
  • Minimum temperature anomaly: -5.2 °C
  • Minimum temperature: 20.1 °C

Event center: -13.5°S 317.5°E

Area affected: 672348 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-Feb-19_to_2026-Mar-06_317.5_-13.5

Cold spell occuring from February 19 2026 to February 27 2026 at -23.0°S 138.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 9 days

Time span: February 19 2026 to February 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 25.4 °C
  • Minimum temperature anomaly: -8.3 °C
  • Minimum temperature: 20.9 °C

Event center: -23.0°S 138.0°E

Area affected: 546757 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-Feb-19_to_2026-Feb-27_138.0_-23.0

Cold spell occuring from February 19 2026 to February 22 2026 at 37.0°N 253.0°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: February 19 2026 to February 22 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.0 °C
  • Mean temperature: -11.7 °C
  • Minimum temperature anomaly: -9.7 °C
  • Minimum temperature: -18.1 °C

Event center: 37.0°N 253.0°E

Area affected: 62783 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-Feb-19_to_2026-Feb-22_253.0_37.0

Heat wave occuring from February 19 2026 to February 25 2026 at -36.0°S 288.5°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 7 days

Time span: February 19 2026 to February 25 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 20.6 °C
  • Maximum temperature anomaly: 9.9 °C
  • Maximum temperature: 29.1 °C

Event center: -36.0°S 288.5°E

Area affected: 495573 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-Feb-19_to_2026-Feb-25_288.5_-36.0