Category: Cold spells affecting Réunion

Cold spell occuring from December 26 2025 to January 04 2026 at -23.5°S 44.0°E

Download data: JSON

Event type: Cold spell

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

  • Madagascar
  • Réunion

Duration: 10 days

Time span: December 26 2025 to January 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 19.8 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 8.5 °C

Event center: -23.5°S 44.0°E

Area affected: 3546993 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-Dec-26_to_2026-Jan-04_44.0_-23.5

Cold spell occuring from January 24 2024 to February 10 2024 at -29.5°S 57.5°E

Download data: JSON

Event type: Cold spell

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

  • Madagascar
  • Réunion

Duration: 18 days

Time span: January 24 2024 to February 10 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 18.9 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 3.1 °C

Event center: -29.5°S 57.5°E

Area affected: 5692185 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-Jan-24_to_2024-Feb-10_57.5_-29.5

Cold spell occuring from January 20 2023 to January 27 2023 at -20.5°S 57.0°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 8 days

Time span: January 20 2023 to January 27 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 25.6 °C
  • Minimum temperature anomaly: -2.5 °C
  • Minimum temperature: 21.3 °C

Event center: -20.5°S 57.0°E

Area affected: 272287 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-Jan-20_to_2023-Jan-27_57.0_-20.5

Cold spell occuring from December 27 2022 to January 02 2023 at -21.0°S 55.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 7 days

Time span: December 27 2022 to January 02 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 24.8 °C
  • Minimum temperature anomaly: -2.1 °C
  • Minimum temperature: 21.2 °C

Event center: -21.0°S 55.5°E

Area affected: 117932 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_2022-Dec-27_to_2023-Jan-02_55.5_-21.0

Cold spell occuring from November 12 2022 to November 19 2022 at -21.0°S 55.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 8 days

Time span: November 12 2022 to November 19 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: 22.5 °C
  • Minimum temperature anomaly: -3.1 °C
  • Minimum temperature: 18.3 °C

Event center: -21.0°S 55.5°E

Area affected: 634693 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_2022-Nov-12_to_2022-Nov-19_55.5_-21.0

Cold spell occuring from June 17 2022 to July 01 2022 at -23.0°S 54.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 15 days

Time span: June 17 2022 to July 01 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 19.1 °C
  • Minimum temperature anomaly: -3.2 °C
  • Minimum temperature: 12.1 °C

Event center: -23.0°S 54.5°E

Area affected: 1557522 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_2022-Jun-17_to_2022-Jul-01_54.5_-23.0

Cold spell occuring from February 08 2022 to February 13 2022 at -20.5°S 53.0°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 6 days

Time span: February 08 2022 to February 13 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 25.7 °C
  • Minimum temperature anomaly: -1.8 °C
  • Minimum temperature: 22.5 °C

Event center: -20.5°S 53.0°E

Area affected: 279525 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_2022-Feb-08_to_2022-Feb-13_53.0_-20.5

Cold spell occuring from January 15 2022 to February 02 2022 at -29.5°S 50.0°E

Download data: JSON

Event type: Cold spell

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

  • Madagascar
  • Réunion

Duration: 19 days

Time span: January 15 2022 to February 02 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 21.6 °C
  • Minimum temperature anomaly: -3.7 °C
  • Minimum temperature: 14.1 °C

Event center: -29.5°S 50.0°E

Area affected: 3698448 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_2022-Jan-15_to_2022-Feb-02_50.0_-29.5

Cold spell occuring from October 28 2020 to November 06 2020 at -27.0°S 56.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 10 days

Time span: October 28 2020 to November 06 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 20.5 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 16.7 °C

Event center: -27.0°S 56.5°E

Area affected: 1255800 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_2020-Oct-28_to_2020-Nov-06_56.5_-27.0

Cold spell occuring from August 03 2020 to August 11 2020 at -21.0°S 54.0°E

Download data: JSON

Event type: Cold spell

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

  • Mauritius
  • Réunion

Duration: 9 days

Time span: August 03 2020 to August 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 17.9 °C
  • Minimum temperature anomaly: -3.5 °C
  • Minimum temperature: 10.9 °C

Event center: -21.0°S 54.0°E

Area affected: 2241071 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_2020-Aug-03_to_2020-Aug-11_54.0_-21.0