Category: Extremes affecting Antarctica

Heat wave occuring from February 12 2026 to February 16 2026 at -81.0°S 190.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 5 days

Time span: February 12 2026 to February 16 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 8.8 °C
  • Mean temperature: -8.0 °C
  • Maximum temperature anomaly: 12.5 °C
  • Maximum temperature: -3.6 °C

Event center: -81.0°S 190.5°E

Area affected: 89625 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-12_to_2026-Feb-16_190.5_-81.0

Cold spell occuring from February 10 2026 to February 14 2026 at -84.0°S 111.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 5 days

Time span: February 10 2026 to February 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: -44.2 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: -45.7 °C

Event center: -84.0°S 111.0°E

Area affected: 81548 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-10_to_2026-Feb-14_111.0_-84.0

Cold spell occuring from February 09 2026 to February 14 2026 at -76.5°S 310.5°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: February 09 2026 to February 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.6 °C
  • Mean temperature: -11.2 °C
  • Minimum temperature anomaly: -9.6 °C
  • Minimum temperature: -20.7 °C

Event center: -76.5°S 310.5°E

Area affected: 94447 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-09_to_2026-Feb-14_310.5_-76.5

Cold spell occuring from February 06 2026 to February 11 2026 at -69.5°S 22.5°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: February 06 2026 to February 11 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: -4.7 °C
  • Minimum temperature anomaly: -8.1 °C
  • Minimum temperature: -14.6 °C

Event center: -69.5°S 22.5°E

Area affected: 96069 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-06_to_2026-Feb-11_22.5_-69.5

Heat wave occuring from February 05 2026 to February 10 2026 at -76.0°S 127.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 6 days

Time span: February 05 2026 to February 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: -29.6 °C
  • Maximum temperature anomaly: 8.9 °C
  • Maximum temperature: -20.0 °C

Event center: -76.0°S 127.0°E

Area affected: 324525 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-05_to_2026-Feb-10_127.0_-76.0

Heat wave occuring from February 05 2026 to February 08 2026 at -84.5°S 38.0°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 05 2026 to February 08 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: -30.6 °C
  • Maximum temperature anomaly: 7.2 °C
  • Maximum temperature: -28.6 °C

Event center: -84.5°S 38.0°E

Area affected: 53088 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-05_to_2026-Feb-08_38.0_-84.5

Cold spell occuring from February 04 2026 to February 09 2026 at -73.0°S 90.5°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: February 04 2026 to February 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.6 °C
  • Mean temperature: -30.4 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: -44.8 °C

Event center: -73.0°S 90.5°E

Area affected: 1079177 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-04_to_2026-Feb-09_90.5_-73.0

Heat wave occuring from February 02 2026 to February 08 2026 at -68.5°S 172.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 7 days

Time span: February 02 2026 to February 08 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 0.4 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 1.2 °C

Event center: -68.5°S 172.5°E

Area affected: 221344 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-02_to_2026-Feb-08_172.5_-68.5

Cold spell occuring from February 01 2026 to February 04 2026 at -79.0°S 112.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 4 days

Time span: February 01 2026 to February 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: -41.1 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: -43.7 °C

Event center: -79.0°S 112.0°E

Area affected: 183071 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-01_to_2026-Feb-04_112.0_-79.0

Cold spell occuring from February 01 2026 to February 15 2026 at -64.0°S 315.5°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 15 days

Time span: February 01 2026 to February 15 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: -4.4 °C
  • Minimum temperature anomaly: -10.9 °C
  • Minimum temperature: -22.9 °C

Event center: -64.0°S 315.5°E

Area affected: 1785042 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-01_to_2026-Feb-15_315.5_-64.0