Category: Cold spells affecting Antarctica

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: August 17 2026 to August 23 2026

Statistics over entire affected area:

• Mean temperature anomaly: -9.5 °C
• Mean temperature: -39.8 °C
• Minimum temperature anomaly: -16.4 °C
• Minimum temperature: -56.7 °C

Event center: -70.5°S 350.5°E

Area affected: 1261106 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-17_to_2026-Aug-23_350.5_-70.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: August 10 2026 to August 16 2026

Statistics over entire affected area:

• Mean temperature anomaly: -6.1 °C
• Mean temperature: -22.5 °C
• Minimum temperature anomaly: -8.9 °C
• Minimum temperature: -26.4 °C

Event center: -65.5°S 51.5°E

Area affected: 51787 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-10_to_2026-Aug-16_51.5_-65.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: August 10 2026 to August 14 2026

Statistics over entire affected area:

• Mean temperature anomaly: -8.2 °C
• Mean temperature: -67.0 °C
• Minimum temperature anomaly: -12.2 °C
• Minimum temperature: -71.7 °C

Event center: -79.5°S 109.5°E

Area affected: 95350 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-10_to_2026-Aug-14_109.5_-79.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: August 08 2026 to August 12 2026

Statistics over entire affected area:

• Mean temperature anomaly: -10.0 °C
• Mean temperature: -65.3 °C
• Minimum temperature anomaly: -12.6 °C
• Minimum temperature: -70.2 °C

Event center: -77.0°S 22.5°E

Area affected: 114325 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-08_to_2026-Aug-12_22.5_-77.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 12 days

Time span: August 07 2026 to August 18 2026

Statistics over entire affected area:

• Mean temperature anomaly: -11.9 °C
• Mean temperature: -45.4 °C
• Minimum temperature anomaly: -16.8 °C
• Minimum temperature: -53.7 °C

Event center: -80.5°S 305.5°E

Area affected: 99420 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-07_to_2026-Aug-18_305.5_-80.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 5 days

Time span: July 29 2026 to August 02 2026

Statistics over entire affected area:

• Mean temperature anomaly: -10.4 °C
• Mean temperature: -60.4 °C
• Minimum temperature anomaly: -14.7 °C
• Minimum temperature: -70.1 °C

Event center: -72.0°S 45.0°E

Area affected: 122154 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-29_to_2026-Aug-02_45.0_-72.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 3 days

Time span: July 29 2026 to July 31 2026

Statistics over entire affected area:

• Mean temperature anomaly: -7.2 °C
• Mean temperature: -49.6 °C
• Minimum temperature anomaly: -10.1 °C
• Minimum temperature: -59.5 °C

Event center: -72.5°S 58.5°E

Area affected: 60934 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-29_to_2026-Jul-31_58.5_-72.5

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 7 days

Time span: July 25 2026 to July 31 2026

Statistics over entire affected area:

• Mean temperature anomaly: -11.7 °C
• Mean temperature: -33.2 °C
• Minimum temperature anomaly: -17.3 °C
• Minimum temperature: -41.0 °C

Event center: -73.0°S 287.0°E

Area affected: 71832 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-Jul-31_287.0_-73.0

Download data: JSON

Event type: Cold spell

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

• Antarctica

Duration: 57 days

Time span: June 09 2026 to August 04 2026

Statistics over entire affected area:

• Mean temperature anomaly: -9.6 °C
• Mean temperature: -48.5 °C
• Minimum temperature anomaly: -20.3 °C
• Minimum temperature: -78.3 °C

Event center: -66.5°S 119.0°E

Area affected: 8489917 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-09_to_2026-Aug-04_119.0_-66.5