Category: Extremes affecting South Georgia and the South Sandwich Islands

Heat wave occuring from November 15 2010 to December 16 2010 at -48.0°S 332.0°E

Download data: JSON

Event type: Heat wave

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

  • South Georgia and the South Sandwich Islands

Duration: 32 days

Time span: November 15 2010 to December 16 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 7.0 °C
  • Maximum temperature anomaly: 5.1 °C
  • Maximum temperature: 20.5 °C

Event center: -48.0°S 332.0°E

Area affected: 10152774 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_2010-Nov-15_to_2010-Dec-16_332.0_-48.0

Heat wave occuring from October 27 2010 to November 08 2010 at -48.5°S 306.0°E

Download data: JSON

Event type: Heat wave

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

  • South Georgia and the South Sandwich Islands

Duration: 13 days

Time span: October 27 2010 to November 08 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 4.6 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 12.6 °C

Event center: -48.5°S 306.0°E

Area affected: 1323459 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_2010-Oct-27_to_2010-Nov-08_306.0_-48.5

Heat wave occuring from October 15 2010 to October 29 2010 at -57.0°S 305.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • South Georgia and the South Sandwich Islands

Duration: 15 days

Time span: October 15 2010 to October 29 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 7.5 °C
  • Mean temperature: -16.8 °C
  • Maximum temperature anomaly: 17.4 °C
  • Maximum temperature: 16.2 °C

Event center: -57.0°S 305.0°E

Area affected: 9025581 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_2010-Oct-15_to_2010-Oct-29_305.0_-57.0

Heat wave occuring from September 14 2010 to September 27 2010 at -80.5°S 12.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • South Georgia and the South Sandwich Islands

Duration: 14 days

Time span: September 14 2010 to September 27 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 11.2 °C
  • Mean temperature: -23.1 °C
  • Maximum temperature anomaly: 21.2 °C
  • Maximum temperature: 2.9 °C

Event center: -80.5°S 12.0°E

Area affected: 5631356 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_2010-Sep-14_to_2010-Sep-27_12.0_-80.5

Heat wave occuring from August 27 2010 to August 29 2010 at -49.0°S 327.5°E

Download data: JSON

Event type: Heat wave

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

  • South Georgia and the South Sandwich Islands

Duration: 3 days

Time span: August 27 2010 to August 29 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 2.4 °C
  • Maximum temperature anomaly: 8.4 °C
  • Maximum temperature: 9.0 °C

Event center: -49.0°S 327.5°E

Area affected: 519005 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_2010-Aug-27_to_2010-Aug-29_327.5_-49.0

Heat wave occuring from June 08 2010 to June 19 2010 at -66.0°S 298.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Falkland Islands
  • South Georgia and the South Sandwich Islands

Duration: 12 days

Time span: June 08 2010 to June 19 2010

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 3.3 °C
  • Maximum temperature anomaly: 17.3 °C
  • Maximum temperature: 17.2 °C

Event center: -66.0°S 298.5°E

Area affected: 4772408 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_2010-Jun-08_to_2010-Jun-19_298.5_-66.0

Cold spell occuring from August 09 2026 to August 17 2026 at -55.5°S 332.0°E

Download data: JSON

Event type: Cold spell

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

  • South Georgia and the South Sandwich Islands

Duration: 9 days

Time span: August 09 2026 to August 17 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.7 °C
  • Mean temperature: -9.1 °C
  • Minimum temperature anomaly: -15.1 °C
  • Minimum temperature: -26.6 °C

Event center: -55.5°S 332.0°E

Area affected: 2776826 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-Aug-09_to_2026-Aug-17_332.0_-55.5

Cold spell occuring from July 25 2026 to August 06 2026 at -75.5°S 319.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica
  • South Georgia and the South Sandwich Islands

Duration: 13 days

Time span: July 25 2026 to August 06 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -24.8 °C
  • Minimum temperature anomaly: -18.1 °C
  • Minimum temperature: -52.5 °C

Event center: -75.5°S 319.0°E

Area affected: 3662805 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-Jul-25_to_2026-Aug-06_319.0_-75.5

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