Category: Cold spells affecting Cook Islands

Download data: JSON

Event type: Cold spell

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

• Cook Islands
• French Polynesia

Duration: 11 days

Time span: November 27 2025 to December 07 2025

Statistics over entire affected area:

• Mean temperature anomaly: -1.4 °C
• Mean temperature: 25.3 °C
• Minimum temperature anomaly: -2.3 °C
• Minimum temperature: 23.9 °C

Event center: -15.0°S 212.5°E

Area affected: 1016444 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_2025-Nov-27_to_2025-Dec-07_212.5_-15.0

Download data: JSON

Event type: Cold spell

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

• Cook Islands
• French Polynesia

Duration: 19 days

Time span: November 10 2025 to November 28 2025

Statistics over entire affected area:

• Mean temperature anomaly: -1.9 °C
• Mean temperature: 18.9 °C
• Minimum temperature anomaly: -3.9 °C
• Minimum temperature: 4.3 °C

Event center: -16.0°S 206.0°E

Area affected: 10051640 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_2025-Nov-10_to_2025-Nov-28_206.0_-16.0

Download data: JSON

Event type: Cold spell

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

• Cook Islands
• French Polynesia

Duration: 17 days

Time span: November 08 2024 to November 24 2024

Statistics over entire affected area:

• Mean temperature anomaly: -1.7 °C
• Mean temperature: 20.3 °C
• Minimum temperature anomaly: -2.7 °C
• Minimum temperature: 12.9 °C

Event center: -21.0°S 210.0°E

Area affected: 3142017 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_2024-Nov-08_to_2024-Nov-24_210.0_-21.0

Download data: JSON

Event type: Cold spell

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

• Cook Islands
• French Polynesia

Duration: 23 days

Time span: November 10 2023 to December 02 2023

Statistics over entire affected area:

• Mean temperature anomaly: -1.9 °C
• Mean temperature: 18.6 °C
• Minimum temperature anomaly: -4.2 °C
• Minimum temperature: 7.5 °C

Event center: -22.5°S 204.5°E

Area affected: 7555213 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_2023-Nov-10_to_2023-Dec-02_204.5_-22.5

Download data: JSON

Event type: Cold spell

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

• Cook Islands
• French Polynesia

Duration: 8 days

Time span: November 01 2023 to November 08 2023

Statistics over entire affected area:

• Mean temperature anomaly: -1.7 °C
• Mean temperature: 20.4 °C
• Minimum temperature anomaly: -3.0 °C
• Minimum temperature: 13.9 °C

Event center: -25.5°S 205.5°E

Area affected: 1330300 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_2023-Nov-01_to_2023-Nov-08_205.5_-25.5

Download data: JSON

Event type: Cold spell

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

• Cook Islands
• French Polynesia

Duration: 9 days

Time span: September 18 2023 to September 26 2023

Statistics over entire affected area:

• Mean temperature anomaly: -2.0 °C
• Mean temperature: 19.9 °C
• Minimum temperature anomaly: -4.6 °C
• Minimum temperature: 12.1 °C

Event center: -26.0°S 205.5°E

Area affected: 3068762 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_2023-Sep-18_to_2023-Sep-26_205.5_-26.0