Category: Extremes affecting South Georgia and the South Sandwich Islands

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: 11 days

Time span: February 26 2026 to March 08 2026

Statistics over entire affected area:

• Mean temperature anomaly: 2.8 °C
• Mean temperature: 11.1 °C
• Maximum temperature anomaly: 6.9 °C
• Maximum temperature: 21.1 °C

Event center: -54.5°S 323.5°E

Area affected: 1962358 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-26_to_2026-Mar-08_323.5_-54.5

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: 8 days

Time span: January 20 2026 to January 27 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.7 °C
• Mean temperature: 4.9 °C
• Maximum temperature anomaly: 5.8 °C
• Maximum temperature: 10.1 °C

Event center: -54.5°S 319.0°E

Area affected: 530624 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-Jan-20_to_2026-Jan-27_319.0_-54.5

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: 9 days

Time span: January 12 2026 to January 20 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.8 °C
• Mean temperature: 3.8 °C
• Maximum temperature anomaly: 4.3 °C
• Maximum temperature: 9.9 °C

Event center: -55.5°S 329.0°E

Area affected: 2281165 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-Jan-12_to_2026-Jan-20_329.0_-55.5

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: 8 days

Time span: December 20 2025 to December 27 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.9 °C
• Mean temperature: 3.8 °C
• Maximum temperature anomaly: 3.5 °C
• Maximum temperature: 7.8 °C

Event center: -57.0°S 314.0°E

Area affected: 408226 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-Dec-20_to_2025-Dec-27_314.0_-57.0

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: 6 days

Time span: June 03 2025 to June 08 2025

Statistics over entire affected area:

• Mean temperature anomaly: 4.9 °C
• Mean temperature: -0.2 °C
• Maximum temperature anomaly: 9.1 °C
• Maximum temperature: 2.3 °C

Event center: -57.0°S 335.5°E

Area affected: 144278 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-03_to_2025-Jun-08_335.5_-57.0